Physiochemical and nutritional evaluation of whole kumquat fruits powder and its protective effect on thyroid hormones and blood sugar levels in diabetic rats / Avaliação físico-química e nutricional de frutas inteiras de kumquat em pó e seu efeito protetor sobre os hormônios da tireoide e os níveis de açúcar no sangue em ratos diabéticos

Abstract The present study was conducted to evaluate the chemical composition, antioxidant activity and hypoglycemic effects of whole kumquat (Ku) powder in diabetic rats fed a high-fat-high-cholesterol (HFHC) diet. The antioxidant activities were evaluated using stable 1,1-diphenyl 2-picrylhydrazyl (DPPH) free radical scavenging method, 2,2´-azinobis (3-ethyl benzo thiazoline-6-sulphonic acid) radical cation (ABTS) and Ferric reducing antioxidant power (FRAP). Total phenolic content was (51.85 mg GAE/g) and total flavonoid content was (0.24 mg Cateachin Equivalent, CE/g). DPPH and ABTS values were 3.32 and 3.98 mg Trolox equivalent (TE)/g where FRAP value was 3.00 mM Fe2+/kg dry material. A total of 90 albino rats were used in the present study. Rats group were as follows: normal diet; normal treated (2, 4, and 6% Ku.), diabetic rats (non-treated), diabetic + HFHC diet (non-treated), HFHC (non-treated), Diabetic (treated), HFHC (treated) and Diabetic + HFHC (treated). The diets were followed for 8 weeks. Blood samples were collected at the end of the experiment. Serum glucose was recorded and thyroid hormones (T4, Thyroxine and T3, Triiodothyronine) were conducted. Diet supplemented with Kumquat at different concentrations have a hypoglycemic effect and improve the thyroid hormones of both diabetic rats and HFHC diabetic rats.

Resumo O presente estudo foi conduzido para avaliar a composição química, a atividade antioxidante e os efeitos hipoglicêmicos do pó de kumquat (Ku) em ratos diabéticos alimentados com uma dieta rica em gordura e colesterol (HFHC). As atividades antioxidantes foram avaliadas usando o método de eliminação de radicais livres de 1,1-difenil 2-picrilhidrazil (DPPH), 2,2'-azinobis (ácido 3-etilbenzotiazolina-6-sulfônico) radical cátion (ABTS) e antioxidante redutor férrico potência (FRAP). O conteúdo fenólico total foi (51,85 mg GAE / g) e o conteúdo total de flavonoides foi (0,24 mg Cateachin Equivalent, CE / g). Os valores de DPPH e ABTS foram 3,32 e 3,98 mg equivalente de Trolox (TE) / g, em que o valor de FRAP foi de 3,00 mM Fe2 + / kg de material seco. Um total de 90 ratos albinos foi usado ​​no presente estudo. O grupo dos ratos foi o seguinte: dieta normal: tratados normais (2, 4 e 6% Ku.), ratos diabéticos (não tratados), diabéticos + dieta HFHC (não tratados), HFHC (não tratados), diabéticos (tratados), HFHC (tratados) e diabéticos + HFHC (tratados). As dietas foram seguidas por 8 semanas. Amostras de sangue foram coletadas ao final do experimento. A glicose sérica foi registrada e os hormônios tireoidianos (T4, Tiroxina e T3, Triiodotironina) foram conduzidos. A dieta suplementada com kumquat em diferentes concentrações tem um efeito hipoglicêmico e melhora os hormônios tireoidianos tanto de ratos diabéticos quanto de ratos diabéticos com HFHC.

Physiochemical and nutritional evaluation of whole kumquat fruits powder and its protective effect on thyroid hormones and blood sugar levels in diabetic rats / Avaliação físico-química e nutricional de frutas inteiras de kumquat em pó e seu efeito protetor sobre os hormônios da tireoide e os níveis de açúcar no sangue em ratos diabéticos

The present study was conducted to evaluate the chemical composition, antioxidant activity and hypoglycemic effects of whole kumquat (Ku) powder in diabetic rats fed a high-fat-high-cholesterol (HFHC) diet. The antioxidant activities were evaluated using stable 1,1-diphenyl 2-picrylhydrazyl (DPPH) free radical scavenging method, 2,2'-azinobis (3-ethyl benzo thiazoline-6-sulphonic acid) radical cation (ABTS) and Ferric reducing antioxidant power (FRAP). Total phenolic content was (51.85 mg GAE/g) and total flavonoid content was (0.24 mg Cateachin Equivalent, CE/g). DPPH and ABTS values were 3.32 and 3.98 mg Trolox equivalent (TE)/g where FRAP value was 3.00 mM Fe²+/kg dry material. A total of 90 albino rats were used in the present study. Rats group were as follows: normal diet; normal treated (2, 4, and 6% Ku.), diabetic rats (non-treated), diabetic + HFHC diet (non-treated), HFHC (non-treated), Diabetic (treated), HFHC (treated) and Diabetic + HFHC (treated). The diets were followed for 8 weeks. Blood samples were collected at the end of the experiment. Serum glucose was recorded and thyroid hormones (T4, Thyroxine and T3, Triiodothyronine) were conducted. Diet supplemented with Kumquat at different concentrations have a hypoglycemic effect and improve the thyroid hormones of both diabetic rats and HFHC diabetic rats.

O presente estudo foi conduzido para avaliar a composição química, a atividade antioxidante e os efeitos hipoglicêmicos do pó de kumquat (Ku) em ratos diabéticos alimentados com uma dieta rica em gordura e colesterol (HFHC). As atividades antioxidantes foram avaliadas usando o método de eliminação de radicais livres de 1,1-difenil 2-picrilhidrazil (DPPH), 2,2'-azinobis (ácido 3-etilbenzotiazolina-6-sulfônico) radical cátion (ABTS) e antioxidante redutor férrico potência (FRAP). O conteúdo fenólico total foi (51,85 mg GAE / g) e o conteúdo total de flavonoides foi (0,24 mg Cateachin Equivalent, CE / g). Os valores de DPPH e ABTS foram 3,32 e 3,98 mg equivalente de Trolox (TE) / g, em que o valor de FRAP foi de 3,00 mM Fe²+ / kg de material seco. Um total de 90 ratos albinos foi usado no presente estudo. O grupo dos ratos foi o seguinte: dieta normal: tratados normais (2, 4 e 6% Ku.), ratos diabéticos (não tratados), diabéticos + dieta HFHC (não tratados), HFHC (não tratados), diabéticos (tratados), HFHC (tratados) e diabéticos + HFHC (tratados). As dietas foram seguidas por 8 semanas. Amostras de sangue foram coletadas ao final do experimento. A glicose sérica foi registrada e os hormônios tireoidianos (T4, Tiroxina e T3, Triiodotironina) foram conduzidos. A dieta suplementada com kumquat em diferentes concentrações tem um efeito hipoglicêmico e melhora os hormônios tireoidianos tanto de ratos diabéticos quanto de ratos diabéticos com HFHC.

Physiochemical and nutritional evaluation of whole kumquat fruits powder and its protective effect on thyroid hormones and blood sugar levels in diabetic rats

Abstract The present study was conducted to evaluate the chemical composition, antioxidant activity and hypoglycemic effects of whole kumquat (Ku) powder in diabetic rats fed a high-fat-high-cholesterol (HFHC) diet. The antioxidant activities were evaluated using stable 1,1-diphenyl 2-picrylhydrazyl (DPPH) free radical scavenging method, 2,2´-azinobis (3-ethyl benzo thiazoline-6-sulphonic acid) radical cation (ABTS) and Ferric reducing antioxidant power (FRAP). Total phenolic content was (51.85 mg GAE/g) and total flavonoid content was (0.24 mg Cateachin Equivalent, CE/g). DPPH and ABTS values were 3.32 and 3.98 mg Trolox equivalent (TE)/g where FRAP value was 3.00 mM Fe2+/kg dry material. A total of 90 albino rats were used in the present study. Rats group were as follows: normal diet; normal treated (2, 4, and 6% Ku.), diabetic rats (non-treated), diabetic + HFHC diet (non-treated), HFHC (non-treated), Diabetic (treated), HFHC (treated) and Diabetic + HFHC (treated). The diets were followed for 8 weeks. Blood samples were collected at the end of the experiment. Serum glucose was recorded and thyroid hormones (T4, Thyroxine and T3, Triiodothyronine) were conducted. Diet supplemented with Kumquat at different concentrations have a hypoglycemic effect and improve the thyroid hormones of both diabetic rats and HFHC diabetic rats.

Resumo O presente estudo foi conduzido para avaliar a composição química, a atividade antioxidante e os efeitos hipoglicêmicos do pó de kumquat (Ku) em ratos diabéticos alimentados com uma dieta rica em gordura e colesterol (HFHC). As atividades antioxidantes foram avaliadas usando o método de eliminação de radicais livres de 1,1-difenil 2-picrilhidrazil (DPPH), 2,2-azinobis (ácido 3-etilbenzotiazolina-6-sulfônico) radical cátion (ABTS) e antioxidante redutor férrico potência (FRAP). O conteúdo fenólico total foi (51,85 mg GAE / g) e o conteúdo total de flavonoides foi (0,24 mg Cateachin Equivalent, CE / g). Os valores de DPPH e ABTS foram 3,32 e 3,98 mg equivalente de Trolox (TE) / g, em que o valor de FRAP foi de 3,00 mM Fe2 + / kg de material seco. Um total de 90 ratos albinos foi usado no presente estudo. O grupo dos ratos foi o seguinte: dieta normal: tratados normais (2, 4 e 6% Ku.), ratos diabéticos (não tratados), diabéticos + dieta HFHC (não tratados), HFHC (não tratados), diabéticos (tratados), HFHC (tratados) e diabéticos + HFHC (tratados). As dietas foram seguidas por 8 semanas. Amostras de sangue foram coletadas ao final do experimento. A glicose sérica foi registrada e os hormônios tireoidianos (T4, Tiroxina e T3, Triiodotironina) foram conduzidos. A dieta suplementada com kumquat em diferentes concentrações tem um efeito hipoglicêmico e melhora os hormônios tireoidianos tanto de ratos diabéticos quanto de ratos diabéticos com HFHC.

In vitro evaluation of free flavonoids in Cassia fistula Linn. calli of different ages under varying concentrations of plant growth regulators (PGRs)

Cassia fistula Linn, a paramount medicinal plant consumed by huge population all over the world. Its bioactive metabolites include flavonoids, phenolics, and polyphenols. Major objective of current study is to find right media combination and age of callus for maximum accumulation of free flavonoids in Cassia fistula cultures. In this study, the calli were induced in MS + 1.0mg/L 2,4-D + 0.05 mg/L BAP with 50 mg/L ascorbic acid. These calli were then transferred to basic MS medium with 1.0 mg/L2,4,5-T and varied BAP concentrations. Four and 8 weeks old calli were used to find out the right concentration of BAP and age for upscaling of free flavonoids. The samples were extracted and HPTLC analyzed for free flavonoids at 260 nm along with the leaf explants. The study revealed that the amount and number of free flavonoids in 4 weeks old calli increased as the amount of cytokinin (0.5 to 1.0 mg/L BAP) increased but decline with further addition of BAP (2.0 mg/L BAP). In aged calli number and amount of free flavonoids exhibit a tremendous increase when compared to the calli in the same medium at 4 weeks. This is inferred that accruing age of callus, reduced quantities of plantgrowth regulators (optimized for callus growth) accumulate free flavonoids. The best medium for free flavonoid production is MS+ 1.0 mg/L 2,4,5-T with 1.0 mg/L BAP may be recommended for producing a high amount of free flavonoids in C. fistula in vitro.The results were justified with the results of quantification.

Bioactive phenolic compounds and organic acids in the decoction of fruits and leaves of Schinus areira L / Compuestos fenólicos bioactivos y ácidos orgánicos en la decocción de frutos y hojas de Schinus areira L

Leaf and fruit decoctions of Schinus areira L. from northwest Argentina were investigated here. Phenolic compounds and organic acids were analyzed by HPLC. Antioxidant capacity and α-glucosidase inhibition were determined by using in vitro tests. The general toxicity was assessed against Artemia salina nauplii. Hyperoside and 3 O-caffeoylquinic acid in leaf decoctions; gallic acid and catechin in fruit decoction were the major phenolic compounds. Malic and citric acids were the main organic acid quantified in the leaf and fruit decoctions, respectively. Fruit decoction had a relatively important content of shikimic acid, precursor of Tamiflu. Leaf decoction presents a greater richness in bioactive compounds with antiradical activity against DPPH●, O2●-and ●NO radicals. S. areira leaves and fruits had α-glucosidase inhibitory activity comparable to hyperoside and acarbose. Fruit decoction was not eco-toxic; leaf decoction showed significant eco-toxic activity and could be chosen for the search of other bioactive compounds with pharmacological activity.

Se investigaron decocciones de hojas y frutos de Schinus areira L. del noroeste de Argentina. Compuestos fenólicos y ácidos orgánicos se analizaron mediante HPLC. Capacidad antioxidante e inhibición de α-glucosidasa se determinaron in vitro. Se evaluó toxicidad general con Artemia salina. Los principales compuestos fenólicos fueron hiperósido y ácido 3 O-cafeoilquínico en hojas y ácido gálico y catequina en frutos. Los principales ácidos orgánicos cuantificados fueron málico en hojas y cítrico en frutos. Ácido shikímico, precursor del Tamiflu está presente en decocción de frutos con un contenido relativamente importante. La de hojas presenta una mayor riqueza en compuestos bioactivos con actividad antirradicalaria frente a DPPH●, O2●-y ●NO. Las hojas y frutos de S. areira tenían una actividad inhibidora de la α-glucosidasa comparable a la de hiperósido y acarbosa. La decocción de frutas no fue eco-tóxica, pero sí la de hojas que podría ser fuente de compuestos bioactivos con actividad farmacológica.

A Review of the Antioxidants from the medicinal plant, Moringa oleifera

Moringa oleifera, is a highly potent medicinal plant which is evergreen or deciduous in nature and it is found growing predominantly in the Sub-Himalayan regions of India, Pakistan, Bangladesh and Afghanistan. This plant is tagged as a medicinal plant because it contains various properties such as high antioxidant properties, anti- inflammatory, anti- cancer, antidiabetic and antimicrobial properties. This review paper will highlight, focus and discuss the antioxidant properties possessed by Moringa oleifera supported by some experiments containing materials required, methods employed, results procured and discussion to support the evidences that prove the antioxidant properties found in this plant. The first and the second experiment is about the presence of flavonoid contents like Quercetin and Rutin found respectively that contributes to the antioxidant properties found in the plant of subject, Moringa oleifera. While, the third experiment is based on the application of the antioxidant properties found in the plant that contributes towards the enhancement of the meat quality thereby, this attribute of the plant having antioxidant properties is used in the meat industries.

Bioavailability of ellagitannins from cambuci (Campomanesia Phaea Berg) in healthy and obese subjects / Avaliação da biodisponibilidade dos elagitaninos de cambuci (Campomanesia phaea Berg) em indivíduos saudáveis e com sobrepeso/obesidade

Cambuci (Campomanesia phaea Berg) is a native fruit of the Atlantic Coastal Forest, belonging to the Myrtaceae family, rich in ellagitannins (ET), proanthocyanidins and other bioactive phenolic compounds (BPCs) related to beneficial effects to human health, such as systemic inflammation and attenuation of insulin resistance. Evidence indicates that the beneficial effects of some BPCs, such as ellagitannins, are associated to their chronic intake and the action of the metabolites produced. Urolithins are the main metabolites produced after consumption from a rich source of ellagitannins. According to the metabolite produced, subjects can be classified into metabotypes (A, B e 0). However, nothing is known about the uptake and metabolism of BPC from cambuci. Thus, the objectives of this study were the physical-chemical characterization of cambuci pulp, identification of BPC profile and the determination of their bioavailability in healthy and overweight/obese subjects. Therefore, subjects (n = 28, being 15 healthy and 13 overweight/obese) consumed cambuci juice, and their respective urines 24 hours after drinking were collected to identify the metabolites of ellagitannins. Cambuci presented high acidity, with pH values of ~ 2.3 and titratable acidity of ~ 1.9 g citric acid equivalents/100 g fresh weight (FW), and solids content of ~7.5 ° Brix, not being characterized as a very sweet fruit. The total phenolic content was ~ 780 mg gallic acid/100 mL juice. The total amount of flavan-3-ols found in the fruit was 45.45 g/kg dry weight (DW) and the main monomers identified were gallocatechin (22.25 g/kg DW) and epigallocatechin gallate (16.48 g/kg DW). The degree of polymerization of flavan3-ol was 32.78, indicating a high intensity of astringency and low bioavailability. Through LC-MS, 26 BPCs were identified, most of them being derived from ellagitannins, and among those identified, telemagrandin II and, pedunculagin. The total ellagic acid content found was ~6.2 mg/g DW, demonstrating that cambuci is a fruit rich in ellagic acid and its derivatives. The 28 volunteers who consumed cambuci juice for the bioavailability assessment were classified, for the first time, into metabotypes according to the type of urolithin produced. Metabotype A was the most prevalent (64.3%), followed by metabotype B (17.9%) and 0 (17.9%). When analyzed according to nutritional status, metabotype A was prevalent in both groups. In conclusion, the BCP profile of cambuci stands out for the presence of ET, such as telemagrandin II and pedunculagin. Due to the high degree of polymerization, no proanthocyanidin metabolites were observed. Metabotype A was the most prevalent in this study population, and nutritional status may not be a determining factor in the type of urolithin produced

O cambuci (Campomanesia phaea Berg), é um fruto nativo da mata Atlântica, pertencente à família das mirtáceas, rico em elagitaninos (ET), proantocianidinas e outros compostos bioativos fenólicos (CBF) que estão associados a vários efeitos biológicos benéficos à saúde humana, tais como atenuação inflamação sistêmica e da resistência à insulina. Evidências apontam que os efeitos benéficos de alguns CBF, como os elagitaninos, estão associados com sua ingestão crônica e à ação dos metabólitos produzidos. As urolitinas são os principais metabólitos produzidos após o consumo de uma fonte rica em elagitaninos. De acordo com o metabólito produzido, os indivíduos podem ser classificados em metabotipos (A, B e 0). No entanto, nada se sabe sobre a absorção e a metabolização dos CBF do cambuci. Desta forma, os objetivos deste trabalho foram a caracterização físico-química da polpa de cambuci, a identificação dos CBF e a avaliação da biodisponibilidade dos polifenóis presentes no suco deste fruto, em seres humanos saudáveis e com sobrepeso/obesidade. Para tanto, os voluntários (n = 28, sendo 15 saudáveis e 13 obesos) consumiram suco de cambuci, e suas respectivas urinas 24 horas, após a ingestão da bebida, foram coletadas para identificação dos metabólitos de elagitaninos. O cambuci apresentou uma alta acidez, com valores de pH de ~2,3 e acidez total titulável de ~1,9 g equivalentes de ácido cítrico/100 g em base úmida (b.u.), e teor de sólidos solúveis de ~7,5 ºBrix, não sendo, portanto, muito ácido. O teor de fenólicos totais encontrado foi ~ 780 mg equivalentes de ácido gálico/100 mL de suco. A quantidade total de flavan-3-ois encontrada na polpa de cambuci foi de 45,45 g/kg em base seca (b.s.) e os principais monômeros identificados foram a galocatequina (22,25 g/kg b.s.) e a epigalocatequina galato (16,48 g/kg b.s.). O grau de polimerização do flavan-3-ol foi de 32,78 indicando uma alta intensidade de adstringência e baixa biodisponibilidade. Através de LCMS foi feita a identificação de 26 CBF, sendo sua grande maioria derivados de elagitaninos, e dentre os identificados podemos destacar telemagrandina II e pedunculagina. O teor de elagitaninos encontrado foi de ~6,2 mg/g (b.s.), demonstrando que o cambuci é um fruto rico em ácido elágico e seus derivados. Os 28 voluntários que consumiram o suco de cambuci para ensaio de biodisponibilidade foram classificados, pela primeira vez, em metabotipos de acordo com o tipo de urolitina produzida. O metabotipo A foi o mais prevalente (64,3%), seguido pelo metabotipo B (17,9%) e 0 (17,9%). Quando analisados de acordo com o estado nutricional, o metabotipo A foi prevalente em ambos os grupos. Conclui-se, portanto, que o perfil de CBF do cambuci se destaca pela presença de ET, tais como telimagrandina II e pedunculagina. Devido ao alto grau de polimerização não foram observados metabólitos de proantocianidinas. O metabotipo A foi o mais prevalente na população deste estudo, e o estado nutricional pode não ser um fator determinante no tipo de urolitina produzida

Functional and chemical qualities of Vitis labrusca grape seed oil extracted by supercritical CO 2 / Calidad funcional y química del aceite de semilla de Vitis labrusca extraído mediante CO 2 supercrítico / Qualidade funcional e química do óleo de semente de Vitis labrusca extraído por CO 2 supercrítico

Abstract Grape seed oil, which is usually extracted with highly toxic organic solvents that are harmful to human health, is produced from tons of grape pomace waste, generated during winemaking. Sometimes, this waste is used to make compost or is burnt, which causes environmental contamination. The functional qualities, antioxidant capacity (AC), α-tocopherol and total phenolic compounds content (TPC) of Black Borgoña (Vitis labrusca) grape seed oil, extracted by supercritical CO2, were evaluated. The high content of linoleic acid (ω-6) and monounsaturated fatty acids contributed to the beneficial effect on the functional quality indices, which were 0.20, 0.23, 11.80 for IA, IT and H:H, respectively. In addition, a POV of 6.23 ± 0.08 milliequivalents of peroxide/kg oil and an anisidine index of 2.70 ± 0.05 indicated a good quality oil. Also, a high concentration of a-tocopherol (9.82 ± 0.02 mg/100 g oil) and a high TPC ("4.14 ± 3.24 mg GAE/kg oil) were obtained. This study demonstrated that supercritical CO2 extraction is a suitable method for the delivery of a high-quality grape seed oil.

Resumen El aceite de semilla de uva que generalmente se extrae con disolventes orgánicos altamente tóxicos y perjudiciales para la salud humana, se produce a partir de toneladas de residuos de orujo de uva, generados durante la elaboración del vino. A veces, estos residuos se utilizan para hacer compost o se queman, lo que provoca la contaminación del medio ambiente. Se evaluaron las cualidades funcionales, la capacidad antioxidante (AC), el contenido de a-tocoferol y los compuestos fenólicos totales (TPC) del aceite de semilla de uva Borgoña Negra (Vitis labrusca), extraído mediante CO2 supercrítico. El alto contenido de ácido linoleico (ω-6) y de ácidos grasos monoinsaturados contribuyó al efecto beneficioso sobre los índices de calidad funcional que fueron de 0.20, 0.23, ''.80 para IA, IT y H:H, respectivamente. Además, un POV de 6.23 ± 0.08 miliequivalentes de peróxido/ kg de aceite y un índice de anisidina de 2.70 ± 0.05 indicaban una buena calidad del aceite. También se obtuvo una alta concentración de α-tocoferol (9.82 ± 0.02 mg/100 g de aceite) y un alto TPC ("4.14 ± 3.24 mg de GAE/ kg de aceite). Este estudio demostró que la extracción con CO2 supercrítico es un método adecuado para obtener un aceite de semilla de uva de alta calidad.

Resumo O óleo de semente de uva é geralmente extraído com solventes orgânicos altamente tóxicos que são prejudiciais à saúde humana, é produzido a partir de toneladas de resíduos de bagaço de uva, gerados durante a vinificação. Às vezes, esses resíduos são usados para fazer adubo ou são queimados, o que causa contaminação ambiental. Foram avaliadas as qualidades funcionais, capacidade antioxidante (AC), a-tocoferol e o teor total de compostos fenólicos (TPC) do óleo de semente de uva Borgoña Negra (Vitis labrusca), extraído por CO2 supercrítico. O alto teor de ácido linoleico (ω-6) e ácidos graxos monoinsaturados contribuiu para o efeito benéfico sobre os índices de qualidade funcional que foram 0.20, 0.23, 11.80 para IA, IT e H:H, respectivamente. Além disso, um POV de 6.23 ± 0.08 miliequivalentes de peróxido/ kg de óleo e um índice de anisidina de 2.70 ± 0.05 indicava uma boa qualidade de óleo. Também foi obtida uma alta concentração de α-tocoferol (9.82 ± 0.02 mg/100 g de óleo) e um alto TPC ("4.14 ± 3.24 mg de óleo GAE/ kg). Este estudo mostrou que a extração de CO2 supercrítico é um método adequado para a entrega de um óleo de semente de uva de alta qualidade.

Oxidative stability of Echium plantagineum oil / Estabilidade Oxidativa do óleo de echium plantagineum

The evidences about the cardioprotective effects of omega-3 fatty acids (n-3 FA), especially EPA (eicosapentaenoic acid) and DHA (docosahexaenoic acid), have increased the consumption of these fatty acids. Echium plantagineum is a plant from Boragenacea family, known as potential source of non-marine omega-3 fatty acids (n-3 FA). Echium seeds presents 12-16% of stearidonic acid (SDA), that can be converted to EPA and DHA at a more elevated rate than the conversion obtained from α-linolenic acid (ALA), present in several other vegetable oils. However, echium oil is highly susceptible to oxidation because it has a high proportion of polyunsaturated fatty acids. Thus, the objective of this study was to combine three natural strategies to inhibit the oxidative damage in echium oil. In the first step, a mixture containing hydrophilic (HM: synaptic + ascorbic + citric acids) or lipophilic (LM: α-tocopherol + ascorbyl palmitate + citric acid) antioxidants was applied in the flaxseed oil, kept at 40oC/ 15 days. The oxidative markers were compared with the oil added of TBHQ (120 ppm) and EDTA (75 ppm), both artificial compounds. The results showed that LM and HM had an oxidative protection similar to the artificial antioxidants and that, HM promoted a better protection than LM. Based on this result, HM was selected as a strategy to be applied in the next step. In the second part of this study, Echium oil was obtained by two process: continuous screew pressing (PRESS) and extraction using hexane (SOLV). Both samples were added of HM combined with a high oleic sunflower oil and kept at different temperatures during storage. Two conditions were analyzed: 6 months into sealed flasks and 30 days into opened flasks. Oxidation reaction was followed by measuring the concentration of hydroperoxide, malondialdehyde, tocopherol and volatile compounds. In general, results showed that temperature reduction was enough to keep the oils stability during storage. Thus, the focus of the strategy's combination was directed toward samples after exposition to oxygen. In this context, better results were obtained by blending 20% of high oleic sunflower oil and the hydrophilic antioxidant mixture (500 ppm of synaptic acid, 250 ppm of ascorbic acid and 150 ppm of citric acid). In this condition it was observed 37-41% reduction in the hydroperoxide values and 40-75% in the malondialdehyde concentration in the samples prepared according to the optimized condition, when compared with the standard conditions by which the oil is currently extracted and processed

As evidências do efeito cardioprotetor dos ácidos graxos ômega 3 (AG n-3), principalmente do ácido eicosapentenoico (EPA) e docosahexaenoico (DHA), tem aumentado o consumo desses ácidos graxos. Echium plantagineum é uma planta da família Boragenacea, conhecida como uma fonte potencial AG n-3 de origem não marinha. As sementes de Echium apresentam 12-16% de ácido estearidônico (SDA), que pode ser convertido em EPA e DHA a uma maior taxa que a obtida através do consumo do ácido alfa linolênico (ALA), presente em diversos óleos vegetais. Porém, o óleo de echium é extremamente suscetível à oxidação, por ter um alto teor de ácidos graxos poli-insaturados. Portanto, o objetivo desse estudo foi combinar três estratégias naturais para inibir a oxidação no óleo de echium. Na primeira parte do estudo, misturas contendo antioxidantes hidrofílicos (HM: ácido sinápico + ácido ascórbico + ácido cítrico) ou lipofílicos (LM: alfa-tocoferol + palmitado de ascobila + ácido cítrico) foram aplicados no óleo de linhaça, e mantidos a 40oC por 15 dias. Os marcadores de oxidação foram comparados com óleo de linhaça no qual foram adicionados compostos artificiais: TBHQ (120 ppm) e EDTA (75 ppm). Os resultados mostraram que LM e HM apresentaram uma proteção antioxidante similar ao efeito apresentado pelos compostos artificiais, e que a mistura HM promoveu uma melhor proteção antioxidante que a mistura LM. A partir desse resultado, a mistura HM foi selecionada como estratégia a ser aplicada na etapa seguinte. Assim, na segunda parte do estudo, o óleo de echium foi obtido por dois processos de extração: prensagem mecânica continua (PRESS) e extração usando hexano (SOLV). A mistura HM e o óleo de girassol alto oleico foram selecionados como estratégias antioxidantes, além da redução de temperatura de estocagem. Duas condições foram analisadas: 6 meses em frascos fechados e 30 dias em frascos abertos. A oxidação foi quantificada através da determinação das concentrações de hidroperóxido, malonaldeído, tocoferol e compostos voláteis. No geral, os resultados mostraram que a redução de temperatura foi suficiente para manter a estabilidade do óleo durante o estoque. Portanto, objetivou-se combinar estratégias para aumentar a estabilidade oxidativa das amostras expostas ao oxigênio. Neste contexto, os melhores resultados foram obtidos quando 20% de óleo de girassol alto oleico foi combinado com a mistura hidrofílica de antioxidantes naturais (500 ppm de ácido sinápico, 250 ppm de ácido ascórbico e 150 ppm de ácido cítrico). Nessa condição, foi observada uma redução de 37-41% nos valores de hidroperóxidos e 40-75% na concentração de malonaldeído, quando comparado com a condição padrão

Acrocarpus fraxinifolius Wight and Arn. Bark; phenolics, toxicity studies, antioxidant and anti-inflammatory activities

The purpose of the survey was to determine acute & chronic toxicity; in vivo antioxidant and anti-inflammatory actions of the different extracts of A. fraxinifolius Wight and Arn bark; along with estimation of the phenolic, flavonoidal contents and investigation of phenolic metabolites that may attribute to the activities. LD50 of the total ethanol extract (TEE) was 7.1 g/kg b. wt, the radical scavenging activity of DPPH showed 60.31% inhibition, FRAP ability and ABTS+ activity showed 55.024 and 67.217 µmol Trolox/100 g dry weight, respectively. TEE followed by ethyl acetate extract (EAE) at 100 mg/kg b.w exhibited the highest in vivo antioxidant activity (94.51% and 91.08% potency, respectively) compared with Vit E (100%). The TEE & EAE exhibited the highest anti-inflammatory activity (3.81±0.08 & 3.79±.0.04) respectively in comparison with indomethacin 3.83±0.01 measured as edema diameter after 4 hours of extract administration. The total phenolic and total flavonoid contents in the total ethanol extract (TEE) estimated as gallic acid and catechin equivalents were 61.06± 0.08 µg eq GA/g, 40.33± 0.20 µg CE/g extract respectively. EAE revealed five phenolic acids and eight flavonoid compounds isolated for the first time from the plant

Effect of total phenolic part of Rhus chinensis against myocardial ischemia in mice / 中国中药杂志

Rhus chinensis is an important resource plant. The aqueous extract of R. chinensis roots or stems was to produce Shuguantong Syrup, which is mainly used for the treatment of coronary heart disease and angina pectoris with definite curative effect. On this basis, the crude phenolic part of R. chinensis prepared by macroporous resin was evaluated for the cardio protective effect against myocardial ischemia in mice. The results showed that the phenolic part group with oral administration at the dosages of 190.8-381.6 mg·kg~(-1), compared with the model group, reduced the values of left ventricular end systolic diameter(LVEDs) and the left ventricular end diastolic diameter(LVEDd), and increased the cardiac ejection fraction(EF) and left ventricular fractional shortening(FS) rate, which could effectively improve cardiac function and exert its anti-myocardial ischemia effect, and reduce the rising levels of creatine kinase isoenzyme(CK-MB) and lactate dehydrogenase(LDH) in serum. HE staining showed that the phenolic part group reduced the infiltration of myocardial inflammatory cells and alleviated the degree of myocardial fibrosis and collagen deposition. TUNEL staining showed that the blue-green fluorescence of the phenolic part group decreased successively, and the degree of myocardial cell apoptosis was reduced. Immunohistochemical staining suggested that it could reduce the number of positive cells for p53 protein expression and significantly improve myocardial cell damage. All above data suggested that the phenolic part group had an anti-mycardial ischemis effect. Related mechanism studies revealed that the crude phenolic part could regulate the expressions of the p53 gene(p53), Bcl-2-associated X protein(Bax), B lymphoma-2 gene(Bcl-2), and caspase-3 protein(caspase-3) in myocardial tissue, suggesting that it could reduce cardiac remodeling and myocardial ischemic damage, and improve cardiac function by inhibiting myocardial apoptosis.This research laid a foundation for the elucidation of the pharmacological ingredients R. chinensis.

Nutritional profile, bioactive compounds and antioxidant capacity of jatobá-da-mata (Hymenaea courbaril, var. stilbocarpa) by product / Perfil nutricional, compuestos bioactivos y capacidad antioxidante de subproductos del jatobá-da-mata (Hymenaea courbaril, var. stilbocarpa)

Jatobá (Hymenaea sp.) is an arboreal legume native to the Brazilian Savannah (Cerrado) and its fruit has a high functional potential, but the jatobá-da-mata specie has been poorly explored. This study evaluated the nutritional profile, bioactive compounds and antioxidant capacity of jatobá-da-mata byproducts: pulp flour, fibrous pulp residue and sap. Jatobá fruits were pulped to obtain pulp flour and fibrous pulp residue, and the jatobá tree's sap was obtained in a typical extraction location in the Cerrado (Brazilian Savannah). Fibrous pulp residue and pulp flour had high protein (11 and 12 g/100 g) and dietary fiber (49 and 44 g/100 g) content, respectively, and the fibrous residue showed the highest total and insoluble fibers, ash and vitamin C content. Regarding polyphenols, the fibrous residue showed a high concentration (775 mg GAE/100 g); an intermediate value in pulp flour (462 mg GAE/100 g); and considerable content in sap(181 mg GAE/100 g). Jatobá residue and pulp flour are suitable ingredients for the formulation of functional foods, and the sap is a promising non-caloric product with potential health benefits.

Jatobá (Hymenaea sp.) es una leguminosa arbórea originaria de la sabana brasileña y su fruto tiene un alto potencial funcional, pero la especie jatobá-da-mata ha sido poco explorada. El objetivo del estudio fue evaluar el perfil nutricional, compuestos bioactivos y capacidad antioxidante de subproductos del jatobá-da-mata: harina de la pulpa, residuo fibroso de la pulpa y la savia. Los frutos fueron despulpados para obtener la harina juntamente con el residuo fibroso de la pulpa, y la savia de la planta fue obtenida en un lugar exclusivo de extracción en el Cerrado (Sábana brasileña). El residuo fibroso y la harina de la pulpa contienen un alto contenido de proteína (11 y 12 g/100 g) y de fibra dietética (49 y 44 g/100 g), respectivamente, y el residuo fibroso mostró el mayor contenido de fibras totales y insolubles, cenizas y vitamina C. En cuanto a los polifenoles, el residuo fibroso presentó alta concentración (775 mg AGE/100 g); la harina de la pulpa, un valor intermedio (462 mg AGE/100 g); y la savia, un contenido considerable (181 mg AGE/100 g). El residuo fibroso y la harina de la pulpa son ingredientes adecuados en la formulación de alimentos funcionales, y la savia es un producto no calórico prometedor con potenciales beneficios a la salud.

A simple and efficient method for removal of phenolic contaminants in wastewater using polyacrylamide entrapped mushroom tyrosinase

Phenolic compounds are priority pollutants with high toxicity even at low concentrations. Ever-increasingburden of pollutants in major rivers and other water bodies along with stringent environmental legislationand focus on adaptation to eco-friendly treatment approaches have necessitated the need for the removal ofthese phenolics before being discharged to rivers and other freshwater bodies. Compared to physicochemicaltreatment, enzymatic treatment has proven to be the best way to treat various phenolic compounds undermild conditions with different enzymes such as peroxidases, laccases, and tyrosinases. In this study, we havedesigned a simple and efficient method for removal of phenols from effluent wastewater using an immobilizedpreparation of mushroom tyrosinase. The enzyme was isolated from Agaricus bisporus (button mushroom)and partially purified, and subsequently, various immobilization matrices were evaluated for their efficiencyof immobilization, reproducibility, rate of degradation of phenolics, stability, and reusability. Experimentsshowed that the in situ polymerization of acrylamide monomer along with the enzyme gave the most effectiveentrapment with high reproducibility among the tested methods. Immobilized tyrosinase was much more stablethan the free tyrosinase in storage and that the immobilized tyrosinase could even retain about most of itsoriginal activity after repeated use of 10 times in a batch system. This method could provide and an economicaland stabilized immobilized-enzyme method for the removal of phenol in wastewater.

Extraction, characterization and microencapsulation of isoflavones from soybean molasses / Extração, caracterização e microencapsulação de isoflavonas do melaço de soja

ABSTRACT: This study aimed to extract isoflavones from soybean molasses with different solvents, furthermore, the selected extract, which showed overall desirable characteristics was selected to evaluate the potentials of different encapsulating agents. The encapsulating agents employed for the study included 18% Maltodextrin DE20 (T1), 18% Hi-maize (T2), and a mixture of equal proportions of 9% Maltodextrin DE20 and 9% of Hi-maize (T3). Solvents such as 80% ethanol and methanol, and grain alcohol in varying different concentrations of 50 and 80% were used for the studies. The best solvent for the extraction of phenolics and total isoflavones was 50% cereal alcohol, this extract also presented higher antioxidant activity. Evaluation of the encapsulating agents revealed that 18% Hi-maize with inlet air of 130 °C was best suited for the encapsulation of isoflavones. The ORAC method showed that microcapsules with the 18% Hi-maize encapsulating agent also had higher antioxidant activity.

RESUMO: Este estudo teve como objetivo extrair isoflavonas do melaço de soja com diferentes solventes, além disso, o extrato selecionado com as características desejáveis ​​em geral foi selecionado para avaliar os potenciais de diferentes agentes encapsulantes. Os agentes encapsulantes foram: 18% de maltodextrina DE20 (T1), 18% Hi-maize (T2) e uma mistura em proporções iguais de 9 % de maltodextrina DE20 e 9% de Hi-maize (T3). Foram testados os solventes, etanol e metanol a 80% e álcool de cereais a 50 e 80%. O melhor solvente para a extração de fenólicos e isoflavonas totais foi o álcool de cereais a 50%, sendo que este extrato também apresentou maior atividade antioxidante. Entre os agentes encapsulantes testados, 18% Hi-maize com ar de entrada de 130 °C mostrou ser o melhor para encapsular as isoflavonas. O método ORAC mostrou que as microcápsulas com o agente encapsulante Hi-maize a 18% também apresentaram maior atividade antioxidante.

Anatomical Characterization of the Adventitious Roots of Mate (Ilex paraguariensis A. St.-Hil.) Mini-cuttings

Abstract Leaves of mate is one of the main non-timber forest products marketed in South America, which makes establishment of new plantations of great interest. However, vegetative propagation of mate plantlets presents difficulties, which may be associated with the complexity of adventitious root formation. The aims of this study were to anatomically characterize the adventitious roots of mate-clone mini-cuttings and investigate the relationship of phenols and starch with adventitious rooting competence in mini-cuttings treated or not with indole-butyric acid (IBA). The mini-cuttings of four clones were collected at 0, 30, and 60 days of cultivation, fixed in a solution containing 1% glutaraldehyde and 4% formaldehyde, pre-infiltrated and infiltrated in (2-hydroxyethyl) methacrylate, and sectioned in a microtome. Ferric chloride and toluidine blue were used to detect phenolic compounds and lugol to identify starch. Adventitious roots formed in mini-cuttings treated with IBA presented disorganized xylem and phloem and poles irregularly but exhibited sclerenchyma vessel elements and tracheid cells indicating functionality. Differences in the rhizogenic ability of mate clones mini-cuttings were not due to the presence of anatomical barriers or the accumulation of phenolic compounds but be associated with the presence and distribution of starch grains in vegetative propagules.

Enhancement of Phenolics and Antioxidant Activity via Heat Assisted Extraction From Moringa oleifera Using Response Surface Methodology and Its Potential Bioactive Constituents

@#Introduction: Moringa oleifera Lam. is a miracle tree that has been widely utilised in folklore medicine due to its immense amount of phenolic constituents that could treat various ailments. Different techniques have been implemented to extract the phenolic but the parameters may not be optimised to further enhance the amount of phenolic extracted. Thus, the work aimed to enhance phenolic content and antioxidant activity of M. oleifera through RSM methodology, which is rapid and convenience. Methods: At first, antioxidant activity of different parts of M. oleifera (leaves, stem, pod and seed) were investigated. The plant part with the highest antioxidant activity was selected for the optimisation of extraction condition using RSM. In RSM, temperature (XA), extraction time (XB) and solid-liquid ratio (XC) were employed to study the effects on yield, total phenolics, flavonoids and antioxidant activity. Then, the optimum extraction condition obtained via RSM was utilised in LC-MS and HPLC analysis to determine the potential bioactive constituents. Results: The leaves of M. oleifera displayed the highest antioxidant activity as compared to other plant parts. The optimum extraction condition obtained for the leaves extract was: temperature (XA): 82°C, extraction time (XB): 48 min and solid-liquid ratio (XC): 1:30 g/mL (w/v). Meanwhile, LC-MS revealed the presence of gallic acid, chlorogenic acid, quercetin, kaempferol and 3-O-glucoside kaempferol. HPLC analysis detected six compounds; gallic acid, epicatechin gallate, chlorogenic acid, myricetin, quercetin and kaempferol. Conclusion: The optimisation are promising to improve yield and antioxidant activity in M. oleifera as compared to non-conventional extractions.

Analysis of Chemical Constituents in Bushao Tiaozhi Capsules by UPLC-Q-TOF-MS / 中国实验方剂学杂志

Objective:To analyze the main chemical constituents of traditional Chinese medicine compound Bushao Tiaozhi capsules by using UPLC-Q-TOF-MS technology. Method:The separation was eluted with Waters CORTECS UPLC C18 column（2.1 mm×150 mm，1.6 μm） in a gradient mode， with methanol-0.1% formic acid as the mobile phase. The column temperature was 40 ℃，the flow rate was 0.24 mL·min-1，and the injection volume was 1 μL. The mass spectrometry condition was X500R QTOF mass spectrometry，the positive and negative electrospray ionization （ESI） was adopted for determine the chromatographic effluent，and the main chromatographic peaks were assigned and distinguished by Q-TOF. Result:A total of 53 chemical constituents were identified by reference confirmation，literature comparison，and high mass spectrometry data analysis. The chemical constituent cluster was composed of 21 flavonoids，10 phenolics，5 monoterpene glycosides，7 diterpene lactones and 10 sesquiterpenes. Furthermore，all of the constituents were surveyed and classified according to their medicinal materials derivation. Among them，the 5 flavonoids components（mangiferin，isoquercitrin，typhaneoside，isorhamnetin 3-O-neohesperidoside，tiliroside）were identified in Microctis Folium for the first time. Conclusion:This study shows that UPLC-Q-TOF-MS technology provides a simple，rapid，and accurate method for the identification of chemical constituents in Bushao Tiaozhi capsules. The identified chemical components mostly cover the main constituents of each medicinal material in the formula，so as to provide a new technological method and theoretical foundation for further defining the pharmacological basis and mechanism of action and optimizing the quality control of Bushao Tiaozhi capsules.

Antioxidation and active constituents analysis of flower residue of Rosa damascena / 中草药·英文版

Objective: To make full usage of resource and turn waste into treasure, the chemical constituents and bioactivity were firstly investigated on Damask rose (Rosa damascena) flower residue (DRFR). Methods: DPPH and ABTS experiments were applied to assess the antioxidant activity of DRFR. Then, column chromatography was used to purify compounds from an antioxidation extract (DRFR-A), and the chemical structure was identified using NMR. The total phenolic acid content was measured by Folin-Ciocalteu colorimetric method, and the content of gallic acid of the indicator ingredient was detected by HPLC. Results: DRFR-A was found to show a high activity both on DPPH (IC50: 2.760 µg/mL) and ABTS (IC50: 2.258 µg/mL) compared to positive control VC. Ten compounds were isolated and identified as quercetin (1), kaempferol (2), gallic acid (3), protocatechuic acid (4), pyrogallic acid (5), 2-phenylethyl 3,4,5-trihydroxybenzoate (6), methyl gallate (7), p-hydroxybenzoic acid (8), p-hydroxyphenethyl alcohol (9) and astragalin (10) from DRFR-A. Among them, pyrogallic acid, 2-phenylethyl-3, 4, 5-trihydroxybenzoate, p-hydroxybenzoic acid and p-hydroxyphenethyl alcohol are obtained from the plant for the first time. The content of total phenolic acids and gallic acid, main ingredient in DRFR-A was determined as 63.73% and 24.67%, respectively. Conclusion: This study provides a reliable data and lays the foundation for the development and utilization of rose residue, and hence for the full utilization of rose resources.

Validation of an HPLC-DAD method for the determination of plant phenolics

Abstract A selective, sensitive and precise reversed phase HPLC-DAD method was developed and validated for the simultaneous determination of six phenolic acids in the aqueous extract and their hydrolyzed forms prepared from Solanum elaeagnifolium Cav., Solanaceae, Ampelocissus acapulcensis (Kunth) Planch., Vitaceae, or Brosimum alicastrum Sw., Moraceae. The new method showed good linearity (r > 0.999) in a relatively wide concentration range (0.5-100 mg/l). The limits of detection and quantification for the compounds were in the range of 0.097-0.467 mg/l and 0.097-0.496 mg/l, respectively. The recoveries of compounds were calculated in three different concentrations in the range of 88.07-109.17% and matrix effect was less than 5% for all phenolic acids. Finally, our developed HPLC method is simple, reliable and successfully applied to identify and quantify the phenolic acids in complex aqueous extracts from medicinal species, that can be useful for the analysis of infusions that people consume in folk medicine.

Cytotoxicity of naturally occurring phenolics and terpenoids from Kenyan flora towards human carcinoma cells

Background: Cancer constitutes a major hurdle worldwide and its treatment mainly relies onchemotherapy.Objectives: The present study was designed to evaluate the cytotoxicity of eleven naturally occurringcompounds including six phenolics amongst them were 4 chalcones and 2 flavanones as well as 5 terpenoids (3 clerodane and 2 trachylobane diterpenoids) against 6 human carcinoma cell lines and normalCRL2120 fibroblasts.Materials and methods: The neutral red uptake (NR) assay was used to evaluate the cytotoxicity of thecompounds, whilst caspase-Glo assay was used to detect caspase activation. Cell cycle and mitochondrialmembrane potential (MMP) were all analyzed via flow cytometry meanwhile levels of reactive oxygenspecies (ROS) was measured by spectrophotometry.Results: Chalcones: 20,40-dihydroxy-60-methoxychalcone (1); 40,60-dihydroxy-20,50-dimethoxychalcone(2); 20,40,60-trihydroxy-50-methoxychalcone (3); 20,60-diacetate-40-methoxychalcone (4), trachylobanediterpenoids: 2,6,19-trachylobanetriol; (ent-2a,6a)-form (10) and 2,18,19-trachylobanetriol; (ent-2a)-form (11) as well as doxorubicin displayed IC50 values below 110 mM in the six tested cancer cell lines. TheIC50 values of the most active compounds were between 6.30 mM and 46.23 mM for compound 1respectively towards breast adenocarcinoma MCF-7 cells and small lung cancer A549 cells and between0.07 mM and 1.01 mM for doxorubicin respectively against SPC212 cells and A549 cells. Compounds 1induced apoptosis in MCF-7 cells mediated by increasing ROS production and MMP loss.Conclusion: Chalcones 1e3 are potential cytotoxic phytochemicals that deserve more investigations todevelop novel anticancer drugs against human carcinoma.© 2018 Transdisciplinary University, Bangalore and World Ayurveda Foundation. Publishing Services byElsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).