Chemical constituents from Solanum muricatum and their antioxidant activities / 中成药

AIM To study the chemical constituents from Solanum muricatum Ait.and their antioxidant activities.METHODS The 85%ethanol extract from S.muricatum was isolated and purified by silica gel,MCI,Sephadex LH-20,RP-C18,TLC,then the structures of obtained compounds were identified by physicochemical properties and spectral data.Their antioxidant activities were evaluated by DPPH free radical scavenging activity screening technology.RESULTS Twenty-five compounds were isolated and identified as caffeic acid(1),5-hydroxymaltol(2),4-methoxy-4-oxobutanoic acid(3),nicotinic acid(4),daucosterol(5),α-spinosterol-3-O-β-D-glucopyranoside(6),susaroyside A(7),ferulic acid(8),p-coumaric acid(9),methyl caffeate(10),ethyl caffeate(11),4,4-dimethylheptanedioic acid(12),calycosin(13),trans-4,4'-dihydroxystilbene(14),24-methylenecycloartanol(15),oleic acid(16),ethyl oleate(17),β-sitosterol(18),citrostadienol(19),pentacosane(20),β-sitosterol palmitate(21),(E)-4-[5-(hydroxymethyl)furan-2-yl]but-3-en-2-one(22),5,5'-oxybis(5-methylene-2-furaldehyde)(23),(E)-4-(5-(methoxymethyl)furan-2-yl)but-3-en-2-one(24),1,5-bis(5-methoxymethyl)furan-2-yl-penta-1,4-dien-3-one(25).The antioxidant capacity of 85%ethanol extract from S.muricatum was stronger than that of water extract.In the 85%ethanol extract from S.muricatum,the antioxidant capacities of each polar segment were 30%methanol,methanol,60%methanol,and water in turn.CONCLUSION Compounds 1-7 and 9-25 are isolated from this plant for the first time.The extracts of S.muricatum with different solvents and different polar segments have certain antioxidant activities.

Phytochemical Analysis and Evaluation of Antifungal and Antioxidant Activities of Essential Oil of Fruits from Juniperus oxycedrus L. Obtained from Morocco

Abstract The present study was aimed at conducting phytochemical analysis and evaluating the in vitro antifungal and antioxidant activities of the essential oil obtained from the fruits of J. oxycedrus L. Hydro-distillation was used to extract the essential oil from the fruits of Juniper oxycedrus. The essential oil was analyzed using gas chromatography with a flame ionization detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). The antioxidant activity of the essential oil against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals was determined in vitro using varying concentrations of the essential oil and vitamin C as a standard antioxidant compound. A disc diffusion test was employed to evaluate the antifungal activity of the essential oil against two test fungal strains, Penicillium citrinum, and Aspergillus niger. The results revealed that 49 constituents were identified in fruit oil, representing 91.56% of the total oil and the yield was 1.58%. Juniper fruit oil was characterized by having high contents of ß-pinene (42.04%), followed by limonene (15.45%), sabinene (9.52%), α-pinene (5.21%), (E)-caryophyllene (3.77%), ρ-cymene (1.56%), caryophyllene oxide (2.02%), and myrcene (1.02%). The radical scavenging activity (% inhibition) of the essential oil was highest (81.87± 2.83%) at a concentration of 200 µg/mL. The essential oil of J. oxycedrus exhibited antifungal activity against A. niger and P. citrinum with minimum inhibitory concentration values (MIC) ranging from 2.89 to 85.01 µl/mL. The findings of the study reveal that the antioxidant and antifungal properties of J. oxycedrus essential oil and their chemical composition are significantly correlated

Effects of Gundelia tournefortii L. on biochemical parameters, antioxidant activities and DNA damage in a rat model of experimental obesity / Efeitos de Gundelia tournefortii L. em parâmetros bioquímicos, atividades antioxidantes e danos ao DNA em um modelo de obesidade experimental de rato

Abstract The present study was designed to investigate the effects of Gundelia tournefortii L. plant extract on different tissues in terms of DNA damage, biochemical and antioxidant parameter values in rats with high-calorie diets. With this aim, Wistar albino male rats were divided into 4 groups containing 6 rats each and the study was completed over 12 weeks duration. At the end of the implementation process over the 12 weeks, rats were sacrificed and blood and tissue samples were obtained. Analyses were performed on blood and tissue samples. According to results for DNA damage (8-OHdG), in brain tissue the OG2 group was significantly reduced compared to the NC group. For MDA results in liver tissue, OG1 and OG2 groups were determined to increase by a significant degree compared to the control group, while the OG2 group was also increased significantly compared to the obese group. In terms of the other parameters, comparison between the groups linked to consumption of a high calorie diet (HCD) and administration of Gundelia tournefortii L. in terms of antioxidant activities and serum samples obtained statistically significant results. Gundelia tournefortii L. plant extracts had effects that may be counted as positive on antioxidant parameter activity and were especially identified to improve DNA damage and MDA levels in brain tissues. Additionally, consumption of Gundelia tournefortii L. plant extract in the diet may have antiobesity effects; thus, it should be evaluated for use as an effective weight-loss method and as a new therapeutic agent targeting obesity.

Resumo O presente estudo foi desenhado para investigar os efeitos do extrato da planta Gundelia tournefortii L. em diferentes tecidos em termos de danos ao DNA, valores de parâmetros bioquímicos e antioxidantes em ratos com dietas hipercalóricas. Com esse objetivo, ratos Wistar albinos machos foram divididos em 4 grupos contendo 6 ratos cada e o estudo foi concluído ao longo de 12 semanas de duração. No final desse processo de implementação, os ratos foram sacrificados e amostras de sangue e tecido foram obtidas. As análises foram realizadas em amostras de sangue e tecido. De acordo com os resultados para danos ao DNA (8-OHdG), no tecido cerebral o grupo OG2 foi significativamente reduzido em comparação com o grupo NC. Para os resultados de MDA no tecido hepático, os grupos OG1 e OG2 aumentaram significativamente em comparação ao grupo controle, enquanto o grupo OG2 também aumentou significativamente em comparação ao grupo obeso. Quanto aos demais parâmetros, a comparação entre os grupos ligados ao consumo de dieta hipercalórica (DC) e à administração de Gundelia tournefortii L. em termos de atividades antioxidantes e amostras de soro obteve resultados estatisticamente significativos. Os extratos de plantas de Gundelia tournefortii L. tiveram efeitos que podem ser considerados positivos na atividade dos parâmetros antioxidantes e foram especialmente identificados para melhorar os danos ao DNA e os níveis de MDA nos tecidos cerebrais. Além disso, o consumo de extrato vegetal de Gundelia tournefortii L. na dieta pode ter efeitos antiobesidade; portanto, deve ser avaliado para uso como um método eficaz de perda de peso e como um novo agente terapêutico voltado para a obesidade.

Effects of Gundelia tournefortii L. on biochemical parameters, antioxidant activities and DNA damage in a rat model of experimental obesity / Efeitos de Gundelia tournefortii L. em parâmetros bioquímicos, atividades antioxidantes e danos ao DNA em um modelo de obesidade experimental de rato

The present study was designed to investigate the effects of Gundelia tournefortii L. plant extract on different tissues in terms of DNA damage, biochemical and antioxidant parameter values in rats with high-calorie diets. With this aim, Wistar albino male rats were divided into 4 groups containing 6 rats each and the study was completed over 12 weeks duration. At the end of the implementation process over the 12 weeks, rats were sacrificed and blood and tissue samples were obtained. Analyses were performed on blood and tissue samples. According to results for DNA damage (8-OHdG), in brain tissue the OG2 group was significantly reduced compared to the NC group. For MDA results in liver tissue, OG1 and OG2 groups were determined to increase by a significant degree compared to the control group, while the OG2 group was also increased significantly compared to the obese group. In terms of the other parameters, comparison between the groups linked to consumption of a high calorie diet (HCD) and administration of Gundelia tournefortii L. in terms of antioxidant activities and serum samples obtained statistically significant results. Gundelia tournefortii L. plant extracts had effects that may be counted as positive on antioxidant parameter activity and were especially identified to improve DNA damage and MDA levels in brain tissues. Additionally, consumption of Gundelia tournefortii L. plant extract in the diet may have antiobesity effects; thus, it should be evaluated for use as an effective weight-loss method and as a new therapeutic agent targeting obesity.

O presente estudo foi desenhado para investigar os efeitos do extrato da planta Gundelia tournefortii L. em diferentes tecidos em termos de danos ao DNA, valores de parâmetros bioquímicos e antioxidantes em ratos com dietas hipercalóricas. Com esse objetivo, ratos Wistar albinos machos foram divididos em 4 grupos contendo 6 ratos cada e o estudo foi concluído ao longo de 12 semanas de duração. No final desse processo de implementação, os ratos foram sacrificados e amostras de sangue e tecido foram obtidas. As análises foram realizadas em amostras de sangue e tecido. De acordo com os resultados para danos ao DNA (8-OHdG), no tecido cerebral o grupo OG2 foi significativamente reduzido em comparação com o grupo NC. Para os resultados de MDA no tecido hepático, os grupos OG1 e OG2 aumentaram significativamente em comparação ao grupo controle, enquanto o grupo OG2 também aumentou significativamente em comparação ao grupo obeso. Quanto aos demais parâmetros, a comparação entre os grupos ligados ao consumo de dieta hipercalórica (DC) e à administração de Gundelia tournefortii L. em termos de atividades antioxidantes e amostras de soro obteve resultados estatisticamente significativos. Os extratos de plantas de Gundelia tournefortii L. tiveram efeitos que podem ser considerados positivos na atividade dos parâmetros antioxidantes e foram especialmente identificados para melhorar os danos ao DNA e os níveis de MDA nos tecidos cerebrais. Além disso, o consumo de extrato vegetal de Gundelia tournefortii L. na dieta pode ter efeitos antiobesidade; portanto, deve ser avaliado para uso como um método eficaz de perda de peso e como um novo agente terapêutico voltado para a obesidade.

Effects of Gundelia tournefortii L. on biochemical parameters, antioxidant activities and DNA damage in a rat model of experimental obesity

Abstract The present study was designed to investigate the effects of Gundelia tournefortii L. plant extract on different tissues in terms of DNA damage, biochemical and antioxidant parameter values in rats with high-calorie diets. With this aim, Wistar albino male rats were divided into 4 groups containing 6 rats each and the study was completed over 12 weeks duration. At the end of the implementation process over the 12 weeks, rats were sacrificed and blood and tissue samples were obtained. Analyses were performed on blood and tissue samples. According to results for DNA damage (8-OHdG), in brain tissue the OG2 group was significantly reduced compared to the NC group. For MDA results in liver tissue, OG1 and OG2 groups were determined to increase by a significant degree compared to the control group, while the OG2 group was also increased significantly compared to the obese group. In terms of the other parameters, comparison between the groups linked to consumption of a high calorie diet (HCD) and administration of Gundelia tournefortii L. in terms of antioxidant activities and serum samples obtained statistically significant results. Gundelia tournefortii L. plant extracts had effects that may be counted as positive on antioxidant parameter activity and were especially identified to improve DNA damage and MDA levels in brain tissues. Additionally, consumption of Gundelia tournefortii L. plant extract in the diet may have antiobesity effects; thus, it should be evaluated for use as an effective weight-loss method and as a new therapeutic agent targeting obesity.

Resumo O presente estudo foi desenhado para investigar os efeitos do extrato da planta Gundelia tournefortii L. em diferentes tecidos em termos de danos ao DNA, valores de parâmetros bioquímicos e antioxidantes em ratos com dietas hipercalóricas. Com esse objetivo, ratos Wistar albinos machos foram divididos em 4 grupos contendo 6 ratos cada e o estudo foi concluído ao longo de 12 semanas de duração. No final desse processo de implementação, os ratos foram sacrificados e amostras de sangue e tecido foram obtidas. As análises foram realizadas em amostras de sangue e tecido. De acordo com os resultados para danos ao DNA (8-OHdG), no tecido cerebral o grupo OG2 foi significativamente reduzido em comparação com o grupo NC. Para os resultados de MDA no tecido hepático, os grupos OG1 e OG2 aumentaram significativamente em comparação ao grupo controle, enquanto o grupo OG2 também aumentou significativamente em comparação ao grupo obeso. Quanto aos demais parâmetros, a comparação entre os grupos ligados ao consumo de dieta hipercalórica (DC) e à administração de Gundelia tournefortii L. em termos de atividades antioxidantes e amostras de soro obteve resultados estatisticamente significativos. Os extratos de plantas de Gundelia tournefortii L. tiveram efeitos que podem ser considerados positivos na atividade dos parâmetros antioxidantes e foram especialmente identificados para melhorar os danos ao DNA e os níveis de MDA nos tecidos cerebrais. Além disso, o consumo de extrato vegetal de Gundelia tournefortii L. na dieta pode ter efeitos antiobesidade; portanto, deve ser avaliado para uso como um método eficaz de perda de peso e como um novo agente terapêutico voltado para a obesidade.

Determination of phenolic compounds and antioxidant potential of aqueous extracts of Curcuma longa L., Piper nigrum L. and Cuminum cyminum: an experimental and a quantum-mechanical study / Determinação de compostos fenólicos e potencial antioxidante dos extratos aquosos de Curcuma longa L., Piper nigrum L. e Cuminum cyminum: um estudo experimental e quanto-mecânico

Objectives: Evaluation of phenolic compounds and antioxidant activities of aqueous extracts of C. longa, P. nigrum and C. cyminum. In addition to proposing a quantum-mechanical model to evaluate the antioxidant activity. Methods: The aqueous extracts were prepared using roots of the Curcuma longa L., seeds of the Piper nigrum L. and seeds of Cuminum cyminum. The extracts were subjected to tests to detect and quantify phenolic compounds and to assess their antioxidant capacity by different methods. Furthermore, to investigate the electronic nature of the antioxidant activity of the main compounds present in these extracts, frontier molecular orbitals (FMOs) were obtained by the DFT/B3LYP/6-31G(d,p) level of theory. Results: After statistical analysis of the results, a greater number of phenolic compounds and better antioxidant activity was identified in the aqueous extracts of cumin (C. cyminum) in all three assays performed, when compared to the other extracts tested. The theoretical model based on the Pietro method is in agreement with the experimental results. Conclusion: This study has an innovative proposal with the trivial antioxidant activity combined with theoretical quantum-mechanical calculations that can serve to reduce costs and time and to predict the antioxidant activity of subsequent studies.

Objetivos: avaliar os compostos fenólicos e atividades antioxidantes dos extratos aquosos de C. longa, P. nigrum e C. cyminum bem como propor um modelo quanto-mecânico para avaliar a atividade antioxidante. Métodos: os extratos aquosos foram preparados por meio da utilização de raízes de Curcuma longa L., sementes de Piper nigrum L. e sementes de Cuminum cyminum. Os extratos foram submetidos a ensaios para detectar e quantificar compostos fenólicos e atividade antioxidante por diferentes métodos. Além disso, com objetivo de investigar a natureza eletrônica da atividade antioxidante dos principais compostos presentes nesses extratos, orbitais moleculares de fronteira (OMFs) foram obtidos pelo nível de teoria DFT/B3LYP/6-31G(d,p). Resultados: após as análises estatísticas dos resultados, a maior quantidade de compostos fenólicos com maior atividade antioxidante foi identificada no extrato aquoso do cominho (C. cyminum) em todos os ensaios realizados, quando comparados com os outros extratos testados. O modelo teórico baseado no método de Pietro está concordante com os resultados experimentais. Conclusão: este estudo possui uma proposta inovadora com a atividade antioxidante trivial combinada com cálculos quanto-mecânicos que podem servir para reduzir custos e tempo para predizer a atividade antioxidante de estudos futuros.

Phytochemical Analysis and In-vitro Antioxidant Activities of Some Selected Higher Fungi from Oyo State, South West of Nigeria

Higher-fungi (Hf) of the polypore mushrooms are considered to have unique secondary metabolites, making them reservoirs of therapeutically significant bioactive compounds. Phytochemical and antioxidant properties of the Hf were accessed in this study. Four Hf, which were found in several wild locations in Oyo state, Nigeria, were collected. At the University of Ibadan Botany Department Laboratory, the species of the four Hf were determined. In-vitro antioxidant activity were assessed using the 1,1-Diphenyl-2-picrylhydrazyl (DPPH), Ferric Reducing Antioxidant Power (FRAP), and Hydrogen peroxide (H2O2) assays using methanol extracts of air-dried and powdered Hf. Results were presented as Mean SEM, graphs were created in Excel, one-way ANOVA was used for the analysis, and p ?0.05 was regarded as significant. These Hf were identified as Lycoperdon rimlatum (Lr) FFUI1, Trametes versicolor (Tv) FFUI2, Ganoderma lucidum (Gl) FFUI3, and Daedelia quarcina (Dq) FFUI4 and were recorded on the NCBI with accession numbers EU833664.1, JQ621899, JQ520179.1 and KP171209.1, respectively. All the Hf showed positive tests for the presence of saponin, tannin, alkaloid, terpenoid, carbohydrate,tannin and flavonoids. The Hf showed antioxidant activities, the highest DPPH inhibition was by Tv (94.48%), FRAP was by Gl (0.16 mg/g) and H2O2 inhibition was by Lr (70.90%). The antioxidant activities observed were due to the presence of useful phytochemicals making them therapeutically significant.

Physicochemical features, functional characteristics, and health benefits of cottonseed oil: a review / Benefícios à saúde humana e características físico-químicas e funcionais do óleo de semente de algodão: uma revisão

Vegetable oils have their specific physicochemical properties due to which they are playing vital role in human nutritional diet for health benefits. Cottonseed oil is obtained from various species of cotton seeds that are famous to be grown mainly for their fiber quality. The most prominently used specie is Gossypium hirsutum. It is obvious that the seeds of different variety of cotton vary as grown in diverse agroclimatic conditions with respect to oil, fats and protein contents. Cottonseed oil is routinely used for cooking and food manufacturing products. Cottonseed oil obtained after proper extraction/processing steps from crude state to refined oil in a variety of ways. Cotton crop is considered for their dual-use purpose, for fiber quality and oil production to promote health benefits in the world. Keeping in view the above facts, this review clearly demonstrated an overview about physicochemical and functional properties of cottonseed oil to promote health benefits associated with the use of this oil. The overall characteristics and all concerned health benefits of CSO will further improve their usefulness is a compact way. We have summarized a brief multi-dimensional features of CSO in all aspects up to the best of our knowledge fort he end researchers who can further research in the respective aspect.

Os óleos vegetais têm propriedades físico-químicas específicas que desempenham um papel vital na dieta nutricional humana em benefício à saúde. O óleo de semente de algodão, utilizado rotineiramente no preparo e na fabricação de alimentos, é obtido através de várias espécies de sementes de algodão, famosas pela alta qualidade de sua fibra, cuja espécie mais utilizada é Gossypium hirsutum. As sementes variam, em relação ao teor do óleo, da gordura e das proteínas, de acordo com o cultivo e as diversas condições agroclimáticas. O óleo de algodão é obtido após etapas adequadas de extração das sementes e processamento do estado bruto ao refinado. Assim, a presente revisão demonstra, de maneira geral, as propriedades físico-químicas e funcionais do óleo de semente de algodão e seus benefícios à saúde humana, resumindo suas características multidimensionais. As características gerais e todos os benefícios do composto podem melhorar ainda mais se utilizadas de forma compacta, auxiliando futuros pesquisadores.

Physicochemical features, functional characteristics, and health benefits of cottonseed oil: a review

Abstract Vegetable oils have their specific physicochemical properties due to which they are playing vital role in human nutritional diet for health benefits. Cottonseed oil is obtained from various species of cotton seeds that are famous to be grown mainly for their fiber quality. The most prominently used specie is Gossypium hirsutum. It is obvious that the seeds of different variety of cotton vary as grown in diverse agroclimatic conditions with respect to oil, fats and protein contents. Cottonseed oil is routinely used for cooking and food manufacturing products. Cottonseed oil obtained after proper extraction/processing steps from crude state to refined oil in a variety of ways. Cotton crop is considered for their dual-use purpose, for fiber quality and oil production to promote health benefits in the world. Keeping in view the above facts, this review clearly demonstrated an overview about physicochemical and functional properties of cottonseed oil to promote health benefits associated with the use of this oil. The overall characteristics and all concerned health benefits of CSO will further improve their usefulness is a compact way. We have summarized a brief multi-dimensional features of CSO in all aspects up to the best of our knowledge for the end researchers who can further research in the respective aspect.

Resumo Os óleos vegetais têm propriedades físico-químicas específicas que desempenham um papel vital na dieta nutricional humana em benefício à saúde. O óleo de semente de algodão, utilizado rotineiramente no preparo e na fabricação de alimentos, é obtido através de várias espécies de sementes de algodão, famosas pela alta qualidade de sua fibra., cuja espécie mais utilizada é Gossypium hirsutum. As sementes variam, em relação ao teor do óleo, da gordura e das proteínas, de acordo com o cultivo e as diversas condições agroclimáticas. O óleo de algodão é obtido após etapas adequadas de extração das sementes e processamento do estado bruto ao refinado. Assim, a presente revisão demonstra, de maneira geral, as propriedades físico-químicas e funcionais do óleo de semente de algodão e seus benefícios à saúde humana, resumindo suas características multidimensionais. As características gerais e todos os benefícios do composto podem melhorar ainda mais se utilizadas de forma compacta, auxiliando futuros pesquisadores.

Physicochemical features, functional characteristics, and health benefits of cottonseed oil: a review / Benefícios à saúde humana e características físico-químicas e funcionais do óleo de semente de algodão: uma revisão

Vegetable oils have their specific physicochemical properties due to which they are playing vital role in human nutritional diet for health benefits. Cottonseed oil is obtained from various species of cotton seeds that are famous to be grown mainly for their fiber quality. The most prominently used specie is Gossypium hirsutum. It is obvious that the seeds of different variety of cotton vary as grown in diverse agroclimatic conditions with respect to oil, fats and protein contents. Cottonseed oil is routinely used for cooking and food manufacturing products. Cottonseed oil obtained after proper extraction/processing steps from crude state to refined oil in a variety of ways. Cotton crop is considered for their dual-use purpose, for fiber quality and oil production to promote health benefits in the world. Keeping in view the above facts, this review clearly demonstrated an overview about physicochemical and functional properties of cottonseed oil to promote health benefits associated with the use of this oil. The overall characteristics and all concerned health benefits of CSO will further improve their usefulness is a compact way. We have summarized a brief multi-dimensional features of CSO in all aspects up to the best of our knowledge for the end researchers who can further research in the respective aspect.

Os óleos vegetais têm propriedades físico-químicas específicas que desempenham um papel vital na dieta nutricional humana em benefício à saúde. O óleo de semente de algodão, utilizado rotineiramente no preparo e na fabricação de alimentos, é obtido através de várias espécies de sementes de algodão, famosas pela alta qualidade de sua fibra., cuja espécie mais utilizada é Gossypium hirsutum. As sementes variam, em relação ao teor do óleo, da gordura e das proteínas, de acordo com o cultivo e as diversas condições agroclimáticas. O óleo de algodão é obtido após etapas adequadas de extração das sementes e processamento do estado bruto ao refinado. Assim, a presente revisão demonstra, de maneira geral, as propriedades físico-químicas e funcionais do óleo de semente de algodão e seus benefícios à saúde humana, resumindo suas características multidimensionais. As características gerais e todos os benefícios do composto podem melhorar ainda mais se utilizadas de forma compacta, auxiliando futuros pesquisadores.

Optimization of Ultrasonic-assisted Extraction of Antioxidant Compounds from Asari Radix et Rhizoma Using Response Surface Methodology / 中国药学杂志

OBJECTIVEP: To investigate ultrasonic-assisted estraction(UAE) and response surface methodology(RSM) for the extraction of asarinin from Asari Radix et Rhizoma(ARR). METHODS: The RSM was based on a three-level, four-variable Box-Behnken design (BBD). The independent variables were ultrasonic time, liquid to solid ratio, ultrasonic temperature, and ultrasonic power, the dependent variable was extraction rate of asarinin, which was used to estimate the relationship between independent and dependent variables. Box-Behnken design and RSM were used to optimize the process of extraction. The prediction was carried out through comparing the observed and predicted values. Antioxidant activity of the extract of ARR was determined by 1,1-diphenyl-2-trinitrophenylhydrazine(DPPH) and 2, 2'-azinobis-(3-ethylbenzthiazoline-6-sulphonate(ABTS) radical scavenging assays in vitro, and good correlation between extraction rate of asarinin and antioxidant activity was observed. RESULTS: The results indicated that ultrasonic time, liquid to solid ratio, ultrasonic temperature, and ultrasonic power had a significant effect on extraction rate of asarinin. Overall process intensification was achieved with ultrasonic time of 56 min, liquid to solid ratio of 17:1 mL•g-1, ultrasonic temperature of 52℃, and ultrasonic power of 180 W by UAE method. Under optimal conditions, the yield of asarinin was (1.55±0.32) mg•g-1 (n=3), which was in accordance with the predicted yield of 1.58 mg•g-1. The IC50 values of the extract of ARR sample were 29.701 and 64.643 mg•mL-1, respectively. The antioxidant results indicate that the extract of ARR has excellent ability to scavenge free radicals and antioxidant capacity and is expected to be used as a natural antioxidant in industrial applications. CONCLUSION: The extraction technology is simple, reliable and highly predictive.The UAE method is effective for extraction of asarinin from ARR.

Multi-component and antioxidant activities analysis in different parts of Sophora japonica / 中草药

Objective: To provide a basis for the rational use of Sophora japonica resources through comprehensive evaluation of different tissues and organs. Methods: The contents of rutin, narcissin, quercetin, isorhamnetin and heavy metals in the samples were detected by HPLC and ICP-OES. The Fe3+ reducing ability, DPPH free radical (DPPH•), ABTS free radical (ABTS•+) scavenging ability and total antioxidant capacity (FRAP) were detected by colorimetry. Then, cluster analysis (CA) and principal component analysis (PCA) were conducted by software of SPSS 20.0. Results: The total contents of four flavonoids in different tissues and organs of S. japonica were arranged as follows: flower buds > flowers > flower axis > leaves > branches. The order of antioxidant capacities was as follows: flower buds > flowers > flower axis > leaves > branches, which were positively correlated with the total contents of four flavonoids. The contents of five heavy metal elements in flowers and flower buds were within the limitation of the Green standards of medicinal plants and preparations for foreign trade and economy, while the Cd element in some leaves, flower axis and branches was beyond the standard. Flowers and flower buds were clustered into one type by CA, while flower axis, leaves and branches were clustered into another category. The two principal components (PC1 and PC2) were extracted from the eight variables by PCA, PC1 showed significant differences among different tissues and organs, and PC2 values showed large differences among batches. Conclusion: The flowers and flower buds of S. japonica showed an excellent qualities, including safe doses of heavy metals, rich flavonoids and outstanding antioxidant activities. In addition, the flower axis and leaves also contained high flavonoids and exhibited strong antioxidant activities, which had the value of further development and utilization.

In vitro Antisalmonellal and Antioxidant Activities of Leaves Extracts of Tectona grandis L. F. (Verbenaceae)

Aim: Study aimed to evaluate the in vitro antisalmonellal and antioxidant properties of Tectona grandis, a medicinal plant commonly used in traditional Cameroonian medicine for the treatment of typhoid fever. Study Design: In vitro Antimicrobial and antioxidant analyses of plant extract using established protocols. Place and Duration of Study: Plant materiel collection at Loum (Moungo Division, Littoral region of Cameroon), identification at the National Herbarium of Cameroon, extraction of plant and all analyses at the Research Unit of Microbiology and Antimicrobial Substances, Department of Biochemistry, University of Dschang-Cameroon, between August 2018 and April 2019. Methodology: In vitro antisalmonellal activity of Tectona grandis extracts was evaluated by the liquid microdilution method as well as their antioxidant activity using by standard methods of H2O2 trapping, FRAP, DPPH radical trapping and OH radical trapping. Quantification test of total phenols and flavonoids and phytochemical screening of extract were also done. Results: The results showed that most of the Tectona grandis extracts had minimal inhibitory concentrations (MICs) ranging from 64 to 1024 μg/mL. Ethanolic extract, 70% ethanol extract and aqueous decoction are the most effective compared to aqueous extracts with activities between 64 and 128 μg/mL on the bacteria tested. Antioxidant tests showed that all extracts except macerated and aqueous infused extracts exhibited high DPPH trapping activities. The antioxidant activities of the extracts are proportionally linked in most cases to their flavonoid and total phenol contents at a concentration of 200 µg/mL. Aqueous decoction showed better H2O2 trapping activity at concentrations less than or equal to 25 µg/mL. Conclusion: These results show that the ethanolic extract and decocted aqueous of Tectona grandis leaves can be used as an alternative to treat salmonellosis.

Chemical profiling study and antioxidant activity of wild Teucrium luteum subsp. flavovirens essential oil from Morocco

The chemical profiling of Teucrium luteum subsp. flavovirens (Batt.) Greuter & Burdet (TLSF) harvested on 10 stationsfrom Southern Morocco (Errachidia) was studied for the first time. The GC and GC/MS analysis of essential oilsallow the identification of 63 compounds, which represent 98.1% of the total oil composition. The main componentswere elemol (16.4%), α-pinene (12.0%), trans-caryophyllene (7.0%), α-humulene (6.4%), β-pinene (5.7%), andγ-eudesmol (5.3%). The antioxidant assays revealed a strong activity using DPPH (IC50 = 13.75 µg/ml), Reducingpower determination (IC50 = 235.45 µg/ml), and β-Carotene tests (IC50 = 275.45 µg/ml). This plant material shows asignificant potential which can be used in the cosmetics industry.

Comparative chemical and biological investigations of three Saudi Astragalus species

Aim: The chemical profile and biological activities of alcoholic extracts of the aerial parts of three SaudiAstragalus species have been comparatively investigated in this research.Materials and Methods: Three Saudi Astragalus species (A. spinosus Vahl, A. armatus Willd, and A. sieberiDC.) were collected from the wild area of Rafhaa city, Northern border region in Saudi Arabia. Phytochemicalscreening was carried out using the general standard procedure, total flavonoid content (TFC) and totalpolyphenolic content (TPC) were determined by AlCl3 colorimetric method and Folin–Ciocalteu reagentmethod, respectively. Flavonoid markers (kaempferol, apigenin, rutin, luteolin, and quercetin) and phenoliccompounds (gallic, caffeic, coumaric, ferulic, cinnamic, syringic, and chlorogenic acids) were quantitativelytraced for the first time in these Saudi Astragalus species using high performance liquid chromatography (HPLC)method. The antibacterial and antifungal studies were carried out by well diffusion method. Cytotoxic activitiesstudies were carried out against Hep G-2, HCT-116, and A-549 cancer cell lines using 3-(4,5-dimethylthiazol2-yl)-2-5-diphenyltetrazolium bromide (MTT) assay procedure. Antioxidant activities were measured using2,2-diphenyl-1-picrylhydrazyl (DPPH) method. Immunostimulant activity was examined using lymphocyteproliferation method.Results: The chemical screening confirmed the presence of triterpenes, flavonoids, sterols, glycosides, saponins,and polyphenolic compounds and absence of anthraquinones in all species, while A. spinosus shows the highestpercentages of TFC and TPC. Ethyl acetate fractions of A. spinosus and A. sieberi showed potent cytotoxicactivities, expressed as 50% inhibitory concentration (IC50) = 50.2, 22.6, and 29.1 µg/ml for A. spinosus and39.8, 28.8, and 47.2 µg/ml for A. sieberi against tumor cell lines, HepG-2, HCT-116, and A-549, respectively.Astragalus spinosus showed a DPPH radical scavenging effect (IC50) = 69 μg/ml, compared with other twospecies (IC50) = 161 and 313 μg/ml for A. armatus and A. sieberi, respectively. The Astragalus samples showedmild antimicrobial activities and immunomodulating activities.Conclusion: The present research shows the quality control testing, for the first time, of three Saudi Astragalusspecies and Astragalus-containing recipes. The present work provides valuable information for new drug orfood supplement research and development.

Evaluation of in vitro Antioxidant Activities of Ethanol Extracts of Datura innoxia Mill. Leaves and Seeds Harvested in Mali

Aims: The purpose of this study was to evaluate the in vitro antioxidant activities of Datura innoxia Mill. leaves and seeds harvested in Mali. Place and Duration of Study: Collection of plant materials were done at Kolondieba (Mali) in june 2016. Evaluation of polyphenols and flavonoids contents, determination of antioxidant activities were done at Laboratory of Plant and Food Biochemistry and Biotechnology of University of Sciences, Techniques and Technologies of Bamako (Mali) between august 2016 and March 2017. Methodology: The leaves and seeds were collected in Kolondieba, Mali. The phytochemical screening based on the standard methods of tube reactions has been performed with ethanol extracts. The quantitative estimation of total polyphenols was made by the Folin-Ciocalteu method and that of flavonoids by the use of aluminum trichloride. The in vitro antioxidant activities of the ethanol extracts was determined by three methods: the 1,1- diphenyl - 2- picrylhydrazyl (DPPH) test, the ferric reducing ability power (FRAP) test and the Phosphomolybdate test (PPM). Results: The phytochemical screening revealed that leaves and seeds of this plant contains alkaloids, polyphenols, flavonoids, coumarins, tannins, triterpenes and saponin. Phenolic contents of ethanol extracts are 30.97 ± 0.33 mg equivalent gallic acid / g in leaves and 14.02 ± 0.15 mg equivalent gallic acid / g in seeds; those of flavonoids are 15.13 ± 0.2 mg equivalent of quercetin / g in the leaves and 4.93 ± 0.41 mg equivalent of quercetin / g in the seeds. The three tests showed that the leaves have a higher level of antiradical activity in vitro than seeds. Conclusion: The results of this work showed that Datura innoxia Mill. has a good antioxidant activity which would justify its use as a potential source of natural antioxidants.

Phytochemical analysis and antioxidant potential of Ocimum gratissimum Linn (Lamiaceae) commonly consumed in the Republic of Benin

In the Benin pharmacopoeia, the use of Ocimum gratissimum Linn (Lamiaceae) based on the empiricalknowledge is widespread. The objective of this work is the matching of the virtues attributed to this plant in folkmedicine with the biomolecules present through a thorough phytochemical exploration. Standard screeningis based on the differential reactions of precipitation and staining. Phenolic compounds, total flavonoids,and condensed tannins were quantified by colorimetric Folin–Ciocalteu, AlCl3, and acid vanillin methods,respectively. Phenolic acids were investigated by the HPLC Ultimate 3000 chain and the antioxidant capacityevaluated by the ferric reducing antioxidant power method coupled with that of 2,2-diphenyl-1-picrylhydrazyl.Standard screening revealed the presence of flavonoids, alkaloids, tannins, anthracene derivatives, steroids, andterpenoids. The total contents of phenolics, flavonoids, and tannins were 56.59 mg gallic acid equivalent /100mg, 13.71 mgEQ/100 mg, and 8.6 mgEC/100 mg, respectively. For specific assays, three flavonoids (chrysin,isorhamnetin, and quercetin) and six phenolic acids (tannic, ellargic, ferrulic, syringic, chlorogenic, and caffeic)have been identified. The antioxidant activity ranges from 78.92 to 106.25 mmol. Ascorbic acid equivalent /gextract with free radical inhibition ranging from 5.24% to 76.59%. The 50% inhibitory concentration givinga value of 6.175 mg ml−1 is greater than that of the pure molecule. The presence of these phytocompoundsendowed with antiradical power testifies to the medicinal potentialities of O. gratissimum. These resultsconfirm the empirical use of O. gratissimum in this study area

Pharmacokinetic evaluation, molecular docking and in vitro biological evaluation of 1, 3, 4-oxadiazole derivatives as potent antioxidants and STAT3 inhibitors / 药物分析学报

1, 3, 4-Oxadiazole derivatives (4a–5f) were previously synthesized to investigate their anticancer properties. However, studies relating to their antioxidant potential and signal transducer and activator of transcription (STAT) inhibition have not been performed. We investigated previously synthesized 1, 3, 4-oxadiazole de-rivatives (4a–5f) for various radical scavenging properties using several in vitro antioxidant assays and also for direct inhibition of STAT3 through molecular docking. The data obtained from various antioxidant assays such as 2, 2,-diphenyl-1-picrylhydrazyl radical (DPPH), nitric oxide, hydrogen peroxide, and superoxide anion radical revealed that among al the derivatives, compound 5e displayed high antioxidant activities than the standard antioxidant L-ascorbic acid. Additionally, the total reduction assay and antioxidant capacity assay further confirmed the antioxidant potential of compound 5e. Furthermore, the molecular docking studies performed for all derivatives along with the standard inhibitor STX-0119 showed that binding energy re-leased in direct binding with the SH2 domain of STAT3 was the highest for compound 5e (-9.91kcal/mol). Through virtual screening, compound 5e was found to exhibit optimum competency in inhibiting STAT3 activity. Compound 5e decreased the activation of STAT3 as observed with Western blot. In brief, compound 5e was identified as a potent antioxidant agent and STAT3 inhibitor and effective agent for cancer treatment.

In vitro Antiproliferative and inhibition of oxidative DNA damage activities of n-butanol extract of Limonium bonduelli from Algeria

Abstract Plants are the main sources of natural antioxidants in the form of phenolic compounds, which help human beings to deal with oxidative stress, caused by free radical damage. For this reason, the present study was carried out to evaluate the antiproliferative, antioxidant and inhibition of oxidative DNA damage activities of n-butanol extract obtained from aerial parts of Limonium bonduelli. The antioxidant potential was determined using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging and inhibition of lipid peroxidation assay. Antiproliferative activity was evaluated using xCELLigence RTCA instrument on two tumor cell lines; HT-29 (human colon adenocarcinoma) and HeLa (human cervix carcinoma). DNA damage inhibition was evaluated using photolyzing 46966 plasmid. Also, total phenolic and total flavonoid contents were determined using a spectrophotometric method. Total phenolic (343 ± 0.05 µg/mg) and flavonoid (220.5 ± 0.04 µg/mg) were indicated as gallic acid and quercetin equivalents respectively. The extract exhibited significant IC50 values in lipid peroxidation (IC50= 181.18 ± 0.65 µg/mL) and DPPH radical scavenging assays (IC50= 14.92 ± 0.032 µg/mL). The extract also partially protected 46966 plasmid DNA from free radical-mediated oxidative stress in a DNA damage inhibition assay and showed concentration-dependent antiproliferative effects. n-butanol extract of L. bonduelli is a rich source of natural antioxidants and anticancer agents.

Study on enzymatic extraction process of polysaccharide from Urena lobata L.and investigation on its antioxidant activity / 中国药理学与毒理学杂志

OBJECTIVE This study aimed to optimize polysaccharides extraction from Urena lobata L.and investigate its antioxidant activity.METHODS The mathematical model was established by re-sponse surface method (RSM) based on the results of single factor experiments, using polysaccha-rides extraction rate as response value,and using the ratio of water to material,cellulase concentra-tion,extraction temperature and time as experimental factors,which was used to screen optimum poly-saccharide extraction conditions from Urena lobata L.. Antioxidant activity of polysaccharides was stud-ied by DPPH and ·OH free radical elimination method. RESULTS The optimum conditions obtained by RSM were as follows:the cellulase level was 10.8 g·L-1,extraction time duration was 72 min,the ra-tio of water to feedstock was 7 mL·g-1,extraction temperature was 43℃,the pH value was 5.0.Under the optimal conditions, there was a difference of less than 5％ between predicted extraction rate 13.37％ and experimental extraction rate 13.32％. The polysaccharide yield was most significantly af-fected by cellulase concentration,followed by extraction time,water to material ratio and extraction tem-perature.IC50of DPPH and·OH were 1.082 g·L-1and 3.202 mg·L-1,respectively.Antioxidant activity of sample polysaccharides was weaker than those of vitamin C. CONCLUSION The polysaccharide extraction process from Urena lobata L. by cellulase enzymolysis approach was obtained, which was convenient and feasible,and extracted polysaccharides had good free radical scavenging activity.