Combining ability analysis in bitter gourd (Momordica charantia L.) for potential quality improvement

Abstract Combining ability analysis provides useful information for the selection of parents, also information regarding the nature and magnitude of involved gene actions. Crops improvement involves strategies for enhancing yield potentiality and quality components. Targeting the improvement of respective characters in bitter gourd, combining ability and genetic parameters for 19 characters were estimated from a 6×6 full diallel analysis technique. The results revealed that the variances due to general combining ability (GCA) and specific combining ability (SCA) were highly significant for most of the important characters. It indicated the importance of both additive and non-additive gene actions. GCA variances were higher in magnitude than SCA variances for all the characters studied indicating the predominance of the additive gene effects in their inheritance. The parent P2 (BG 009) appeared as the best general combiner for earliness; P1 (BG 006) for number of fruits, average single fruit weight and fruit yield; P4 (BG 027) for node number of first female flower and days to seed fruit maturity; P3 (BG 011) for fruit length and thickness of the fruit flesh; P5 (BG 033) for 100-seed weight; and P6 for number of nodes per main vine. The SCA effect as well as reciprocal effect was also significant for most of the important characters in different crosses.

Resumo A análise da capacidade de combinação fornece informações úteis para a seleção dos pais, também informações sobre a natureza e a magnitude das ações dos genes envolvidos. A melhoria das safras envolve estratégias para aumentar a potencialidade da produção e os componentes de qualidade. Visando ao aprimoramento dos respectivos caracteres em cabaça-amarga, capacidade de combinação e parâmetros genéticos para 19 caracteres, foram estimados a partir de uma técnica de análise dialélica completa 6 × 6. Os resultados revelaram que as variâncias, devido à capacidade geral de combinação (GCA) e capacidade específica de combinação (SCA), foram altamente significativas para a maioria dos caracteres importantes. Indicou a importância das ações gênicas aditivas e não aditivas. As variâncias GCA foram maiores em magnitude do que as variâncias SCA para todos os caracteres estudados, indicando a predominância dos efeitos do gene aditivo em sua herança. O pai P2 (BG 009) apareceu como o melhor combinador geral para o início; P1 (BG 006) para número de frutos, peso médio de um único fruto e produção de frutos; P4 (BG 027) para número de nó da primeira flor fêmea e dias para a maturidade do fruto da semente; P3 (BG 011) para comprimento do fruto e espessura da polpa do fruto; P5 (BG 033) para peso de 100 sementes; e P6 para o número de nós por videira principal. O efeito SCA, bem como o efeito recíproco, também foi significativo para a maioria dos personagens importantes em cruzamentos diferentes.

Combining ability analysis in bitter gourd (Momordica charantia L. ) for potential quality improvement / Análise de capacidade de combinação em cabaça-amarga (Momordica charantia L. ) para melhoria potencial da qualidade

Abstract Combining ability analysis provides useful information for the selection of parents, also information regarding the nature and magnitude of involved gene actions. Crops improvement involves strategies for enhancing yield potentiality and quality components. Targeting the improvement of respective characters in bitter gourd, combining ability and genetic parameters for 19 characters were estimated from a 6×6 full diallel analysis technique. The results revealed that the variances due to general combining ability (GCA) and specific combining ability (SCA) were highly significant for most of the important characters. It indicated the importance of both additive and non-additive gene actions. GCA variances were higher in magnitude than SCA variances for all the characters studied indicating the predominance of the additive gene effects in their inheritance. The parent P2 (BG 009) appeared as the best general combiner for earliness; P1 (BG 006) for number of fruits, average single fruit weight and fruit yield; P4 (BG 027) for node number of first female flower and days to seed fruit maturity; P3 (BG 011) for fruit length and thickness of the fruit flesh; P5 (BG 033) for 100-seed weight; and P6 for number of nodes per main vine. The SCA effect as well as reciprocal effect was also significant for most of the important characters in different crosses.

Resumo A análise da capacidade de combinação fornece informações úteis para a seleção dos pais, também informações sobre a natureza e a magnitude das ações dos genes envolvidos. A melhoria das safras envolve estratégias para aumentar a potencialidade da produção e os componentes de qualidade. Visando ao aprimoramento dos respectivos caracteres em cabaça-amarga, capacidade de combinação e parâmetros genéticos para 19 caracteres, foram estimados a partir de uma técnica de análise dialélica completa 6 × 6. Os resultados revelaram que as variâncias, devido à capacidade geral de combinação (GCA) e capacidade específica de combinação (SCA), foram altamente significativas para a maioria dos caracteres importantes. Indicou a importância das ações gênicas aditivas e não aditivas. As variâncias GCA foram maiores em magnitude do que as variâncias SCA para todos os caracteres estudados, indicando a predominância dos efeitos do gene aditivo em sua herança. O pai P2 (BG 009) apareceu como o melhor combinador geral para o início; P1 (BG 006) para número de frutos, peso médio de um único fruto e produção de frutos; P4 (BG 027) para número de nó da primeira flor fêmea e dias para a maturidade do fruto da semente; P3 (BG 011) para comprimento do fruto e espessura da polpa do fruto; P5 (BG 033) para peso de 100 sementes; e P6 para o número de nós por videira principal. O efeito SCA, bem como o efeito recíproco, também foi significativo para a maioria dos personagens importantes em cruzamentos diferentes.

Avaliação Da Atividade Antifúngica Dos Extratos Etanólicos Do Melão-De-São Caetano (momordica charantia l) frente a diferentes espécies de cândida / Evaluation of the antifungal activity of ethanolic extracts of the bitter melon (Momordica Charantia L.) Against different species of candida

Introdução: Leveduras do gênero Candida são reconhecidas por serem as espécies mais comuns envolvidas na etiologia das micoses. Objetivo: avaliar a atividade antifúngica dos extratos etanólicos do Melão-de-São-Caetano (Momordica charantia L.) frente a diferentes espécies de Candida. Metodologia: após aprovação pelo Comitê de Ética em Pesquisa, a coleta dos frutos e das folhas do Melão-de-SãoCaetano foi realizada na região da zona rural de Bauru-SP. Os frutos in natura e as folhas foram levados à estufa com circulação forçada de ar por 96 horas a 45°C, sendo, após esse período, submetidos ao processo de moagem em turbólise. Os triturados foram pesados e a cada 10g foram acrescentados 85mL de álcool 70%. Os macerados foram armazenados em erlemeyer, ficaram em repouso por 21 dias, foram devidamente embalados para que a luz não penetrasse na solução. Na sequência, o líquido foi filtrado a vácuo e o solvente evaporado em capela para obtenção dos extratos etanólicos. Os testes foram realizados em triplicata. Resultados: o extrato do fruto não apresentou capacidade fungistática (CIM) nem fungicida (CFM) na máxima concentração avaliada (1250µg/mL) sob as espécies de Candida utilizadas. Já o extrato da folha demonstrou ação fungistática (CIM) frente a todas as espécies de Candida, mostrando padrões diferentes nas concentrações (312,5µg/mL para C. albicans e 625µg/ mL para C. krusei, C. tropicalis e C. glabrata). O mesmo extrato demonstrou capacidade fungicida (CFM) nas espécies C. albicans e na C. tropicalis, nas concentrações 625µg/mL e 1250µg/mL respectivamente. Conclusão: o extrato da folha do Melão-de-SãoCaetano foi eficaz sobre todas as linhagens de Candida ensaiadas, sugerindo uma ótima alternativa terapêutica.

Introduction: Yeast of the candida gender are mostly related to etiology of mycosis. Objective: evaluate the antifungal activity of ethanolic extracts of the Bitter melon (Momordica charantia L.) against different species of Candida. Methodology: after the approval by the Research Ethics Committee, fruits and leaves of the Bitter melon were collected in the rural area of Bauru-SP. The fruits and leaves were taken to a greenhouse and kept with forced air circulation for 96 hours at the temperature of 45 °C. After that period, the samples were submitted to a grinding process in turbolysis. The grindings were weighed and each 10g received 85mL of alcohol 70%. The macerates were stored in an Erlenmeyer flask and were kept at rest for 21 days; after that, they were appropriately packed so that no light would penetrate in the solution. In the sequence, the liquid suffered a vacuum filtration and the solvent was evaporated in a hood to obtain the ethanolic extracts. The tests were performed in triplicate. Results: The extract of the fruit did not show fungistatic (CIM) nor fungicidal capacity (CFM) in the maximum concentration evaluated (1250µg/mL) against the species of Candida used. On the other hand, the extract of the leave showed fungistatic activity (CIM) against the other species of Candida, presenting different patterns in the concentrations (312.5µg/mL for C. albicans and 625µg/mL for C. krusei, C. tropicalis and C. glabrata). The same extract showed fungicidal capacity (CFM) in the species C. albicans and C. tropicalis, in the concentrations 625µg/mL and 1250µg/mL, respectively. Conclusion: the extract of the leave of the Bitter melon was effective against all Candida strains studied, suggesting this is a great therapeutic alternative.

Antifungal Potential of Indigenous Medicinal Plants against Myrothecium Leaf Spot of Bitter Gourd ( Momordica charantia L.)

ABSTRACT Bitter gourd is of great importance due to its usage against the treatment of numerous ailments in human beings. A comprehensive survey at four localities of Southern Punjab, Pakistan was carried out to determine the severity of Myrothecium leaf spot. Maximum disease severity was at C1 (Chak 11/NP) and least at C2 (Kot Mehtab). Among isolated species Myrothecium roridum was found more prevalent and pathogenic as compared to M. verrucaria. Antifungal activity using solvent extracts of five medicinal plants (Mangifera indica, Melia azedarach, Nicotiana tabacum, Moringa oleifera and Eucalyptus globosum) were evaluated against isolated species by agar well diffusion method at various concentrations (0.01, 0.10, 1.0 and 10.0 µg / mL). N. tabacum revealed maximum zone size (13.40 mm and 8.28 mm) with ethanol and chloroform solvents respectively followed by M. azedarach (9.00mm and 6.48mm). However, least inhibition was observed with ethanol and chloroform extracts of E. globosum (6.04mm and 3.88mm zone size respectively). Ethanol extracts showed highest activity when compared to chloroform extracts. Qualitative phytochemical analysis showed that all the selected plants are rich in chemical compounds such as alkaloids, terpenoids, flavonoids and phenols whereas Saponins was only present in N. tabacum while absent in rest of the extracts.

Avaliação biométrica de caracteres do melão de São Caetano (Momordica charantia L) / Biometric evaluation of the characters of the melon from Sao Caetano (Momordica charantia L)

RESUMOO melão de São Caetano, planta trepadeira originaria do leste indiano e sul da Índia, é encontrada no bioma caatinga. Neste trabalho objetivou-se avaliar a biometria dos frutos e o número de sementes por fruto do melão de São Caetano. Os frutos foram coletados em área de vegetação nativa do campus da Universidade Federal Rural do Semi-Árido (UFERSA), situada no município de Mossoró, RN, seguindo para o laboratório de fitotecnia para a determinação das seguintes características: comprimento, diâmetro e peso dos frutos, bem como o número de sementes por fruto. As análises descritivas e gráficas foram realizadas utilizando o pacote estatístico software R-project. As variáveis, comprimento e diâmetro apresentaram baixa amplitude de variação e bons valores de coeficiente de variação. Já o peso do fruto e o número de sementes por fruto mostraram alta amplitude de variação. Verificou-se alto grau de simetria e distribuição mesocúrtica para todas as características avaliadas nesse estudo. Constatou-se também a correlação linear simples positiva significativa entre o comprimento e o diâmetro, e não significativa entre o peso e o número de sementes por fruto, e que os dados referentes a todas as características do fruto do melão de São Caetano avaliadas neste trabalho se ajustaram à distribuição normal de probabilidade, o que permite a realização de inferências com base estatística.

ABSTRACTThe melon from Sao Caetano is a climbing plant, originally from India and South East India and is found in the savanna biome. This study aimed to evaluate the biometric fruit and the number of seeds per fruit of the melon Sao Caetano. The fruits were collected inside a native vegetation area of the campus at the Universidade Federal Rural do Semi-Árido (UFERSA), located in the city of Mossoró, RN. They were then taken to the laboratory of crop science, for the determination of the following characteristics: length, diameter and fruit weight as well as number of seeds per fruit. The descriptive and graphical analyzes were performed by using the statistical package R -project software. The length and diameter variables exhibited a low amplitude variation and a good value for the coefficient of variation. However, the fruit weight and number of seeds per fruit showed a high amplitude variation. There was a high degree of symmetry and a flattened distribution for all traits evaluated in this study. It was also found significant positive simple linear correlation between the length and diameter, and no significant difference between the weight and number of seeds per fruit. The data related to all features of the São Caetano melon fruit evaluated in this study were adjusted to normal distribution of probability which allows the performance of interferences with statistical basis.

Effectiveness of Maceration Periods with Different Extraction Solvents on in-vitro Antimicrobial Activity from Fruit of Momordica charantia L.

Momordica charantia L. also known as bitter gourd, is one of the medicinal plants that have a long history usage as medicine in Asia for the treatment of various ailments. The present study was aimed to evaluate the effectiveness of maceration periods with various extraction solvents against four gram positive bacteria(B. cereus, B. subtilis, E. faecalis and S. aureus), four gram negative bacteria (E. coli, K. pneumonia, P. aeruginosa and Serratia spp.) and a fungus, C. albicans. Dried fruit powders were extracted at four maceration times (6 h, 12 h, 24 h and 48 h) using different solvents (hexane, petroleum ether, ethyl acetate, acetone, ethanol and distilled water). In the results, gram negative bacteria and fungus were found more susceptible as compared to gram positive bacteria. Solvents with low to intermediate polarity used such as hexane, petroleum ether and ethyl acetate demonstrated better antimicrobial activity as compared to other solvents used. On maceration times used, 6h was found to give the best inhibition zone of the antimicrobial activity with economic feasibility, while on the microorganisms tested, E. coli was found to be the most susceptible, followed by C. albicans and K. pneumonia. Statistical analysis demonstrated significant difference (p < 0.05), where maceration periods, extraction solvents used as well as the type of microorganisms have significant effect on the inhibition zone. Thus, this study revealed the importance of appropriate maceration periods in combination with different extraction solvents used, in giving a satisfactory and reliable result on the antimicrobial activity of the nine potent microorganisms.

Antioxidant and Cytotoxic Activity of Crude Flavonoid Fraction from the Fruits of Hybrid Variety of Momordica charantia (Bitter Gourd).

Aims: The study was conducted to evaluate the antioxidant and cytotoxic properties of crude flavonoid fraction from hybrid variety of Momordica charantia (L.) (Bitter gourd) fruit. Place and Duration of Study: The study was carried out in 2011 in the Department of Biochemistry and Molecular Biology, University of Chittagong, Bangladesh. Methodology: In vitro assay for Antioxidant activity test was determined by means of 2, 2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging method, using ascorbic acid as standard. The Brine shrimp lethality test was used to assess the cytotoxicity of the extract with Gallic acid as positive control. Data were analysed by statistical software BIOSTAT 2009 and Excel. Results: The fractionated crude flavonoid of Momordica charantia (L.) fruits showed moderate antioxidant activity with IC50 value of 75.21 μg/ml. Compared to Gallic acid (with LC50 of 4.40 μg/ ml), fractionated flavonoid demonstrated a significant cytotoxic activity (having LC50 of 12.38 μg/ml) which indicates that fractionated flavonoid is promisingly cytotoxic. Conclusion: The study indicates the moderate antioxidant and potent cytotoxic activities of flavonoid fractionated from Momordica charantia (L.) fruits which can be used as a source of pharmacological references although specific flavonoids are responsible for such actions are unknown.

Desarrollo de una tecnología para la obtención de extracto acuoso de Momordica charantia L / Development of a technology for obtaining the Momordica charantia L aqueous extract

Introducción: los extractos acuosos de Momordica charantia L poseen potencial terapéutico avalado científicamente, lo cual posibilita su empleo en el tratamiento de diversas enfermedades, sobre todo en la diabetes. La obtención de un extracto estandarizado es de gran importancia y posibilita su reproducción a escala industrial en la obtención de un ingrediente farmacéuticamente activo, para el desarrollo de formas terminadas de administración oral. Objetivos: desarrollar una tecnología a escala de laboratorio para la obtención de extracto acuoso estandarizado de Momordica charantia L Métodos: el estudio de los parámetros de operación (relación material vegetal-disolvente y el tiempo de extracción) se llevó a cabo en un reactor de laboratorio diseñado a partir de las dimensiones de un reactor industrial, con un diseño de superficie de respuesta factorial de 3 niveles...

Introduction: Momordica charantia L aqueous extracts have scientifically-confirmed therapeutical potential, which makes it possible to use it in the treatment of several diseases, particulary diabetes. Obtaining a standardized extract is of great importance to reproduce it at industrial scale and also to obtain a pharmaceutically active ingredient (FAI) for the development of orally administered finished forms. Objectives: to develop a technology at lab scale to obtain standardized aqueous extract from Momordica charantia L Methods: the study of the operational parameters (vegetal matter-solvent ration and extraction time) was performed in a lab reactor designed according to the dimensions of an industrial reactor, with a 3-level surface design of factorial response...

Germinação de sementes de melão-de-são-caetano sob variação de água, luz e temperatura / Water, temperature and light on bitter melon germination

Objetivou-se estudar respostas germinativas das sementes de melão-de-São Caetano (Momordica charantia L.) em diferentes condições de: disponibilidade de água (0,0, -0,2, -0,4, -0,6, -0,8 e -1,0 MPa), temperatura (10, 15, 20, 25, 30 e 35 °C) e qualidade de luz incidente (filtro escuro, vermelho, verde, amarelo, vermelho distante, azul, laranja e sem filtro). Para cada variável avaliada, realizou-se um experimento, em delineamento inteiramente casualizado com quatro repetições, os quais eram mantidos em condições controladas (câmara de germinação). As sementes de melãode-São Caetano apresentaram maiores percentagens de germinação em condições de leve restrição hídrica (-0,2 MPa) e temperaturas em torno de 25 oC, independente da qualidade da luz. Temperaturas abaixo de 20 oC e acima de 30 oC reduziram a germinação, embora temperaturas mais baixas tenham reduzindo mais intensamente a germinação. Os potenciais osmóticos menores que -0,2 MPa reduziram fortemente a germinação, a qual foi inibida nos tratamentos de -0,8 e -1,0 MPa.

The purpose of this study was to evaluate germination of Momordica charantia L. seeds under different conditions of: water availability (0.0, -0.2, -0.4, -0.6, -0.8 and -1.0 MPa), temperature (10, 15, 20, 25, 30 and 35 °C) and quality of incident light (filter dark, red, green, yellow, red off, blue, orange and without filter). For each variable evaluated, experiments were carried out in a completely randomized design with four replicates kept under controlled conditions (germination chamber). There were higher percentages of germination under conditions of mild water restriction (-0.2 MPa) and temperatures around 25 °C, regardless of the quality of light. Temperatures below 20 °C and above 30 °C reduced germination, although lower temperatures had strongly effects on germination. Water availability lower than -0.2 MPa strongly reduced germination, which was inhibited in the treatments of -0.8 and 1.0 MPa.

Atividade antimicrobiana do extrato de Momordica charantia L. / Antimicrobial activity of the Mormodica charantia L. extract

A Momordica charantia L., conhecida popularmente como Melão de São Caetano, pertencente àfamília das Cucurbitaceae, é uma planta tropical, de crescimento rápido, comum em terrenos abandonados e que apresenta efeito medicinal, comprovado para o tratamento de várias afecções de origem microbiana...

The Momordica charantia L., a member of the Cucurbitaceae plant family, is a fast-growing tropicalplant, commonly found on abandoned land, which has proven medicinal effects for the treatment of variousdiseases of microbial origin...

Isolation and structural identification of cucurbitacine glycoside components from seeds of Momordica charantia L

Two triterpen glycoside belong to cucurbitacin group, momordicosid A (3-O-β- gentiobiosyl cucurbit-5-en- 3β, 22 (S), 23 (R), 24 (R), 25-pentaol) and momordicosid B (3-O- β- D- xylopyranosyl (1-4)- [β-D- glucopyranosyl (1-6)]- β- D- glucopyranosyl cucurbit-5-en-3 β, 22 (S), 23 (R), 24 (R), 25-pentaol) were isolated and identified from the defatted seeds of Momordica charantia L. attained at Tuy Hoa, Phu Yen. Their structures were determined on the basis of spectra including IR, FAB-LR-MS, 1H-NMR, HMBC and 1H-NMR

THE ANTIHYPERGLYCEMIC EFFECTS OF POLYSACCHARIDE FROM MOMORDICA CHARANTIA IN STZ-INDUCED DIABETIC MICE / 营养学报

Objective:To study the antihyperglycemic effect of water soluble polysaccharides (MCW) and alkaline soluble polysaccharides (MCB) from Momordica charantia L. on streptozotocin-induced diabetic mice. Method:Twelve mice were selected randomly as control, while the other l08 mice were injected with STZ 200 mg/kg?bw to induce diabetes.The diabetic mice were divided into 4 groups,the model, MCW (300 mg/kg bw), MCB (300 mg/kg bw), Gilbenclamide (15 mg/kg bw). The above components were administered intragastrically for 10 d and then blood samples were taken to determine concentrations of serum glucose and insulin. Results: The blood glucose levels could be obviously decreased by MCW and MCB in the diabetic mice. MCB has the best antihyperglycemic effect, in terms of improving the serum insulin level and decreasing the blood glucose level of diabetic mice. Conclusion:The polysaccharides from Momordica charantia can repair the injured pancreatic islet tissues and enhance insulin secretion so as to reduce blood glucose level of the diabetic mice.

Chemical constituents in immature fruits of Momordica charantia / 中草药

Objective To study the chemical constituents in the immature fruits of Momordica charantia. Methods Isolation and purification were carried out by macroporous absorption resin and silica gel, and compounds were identified and elucidated by spectral and chemical methods. Results Ten compounds were obtained from alcohol extract and five of them were determined as germanicyl acetate (Ⅰ), aglycone of momordicoside Ⅰ (Ⅱ), aglycone of momordicoside L (Ⅲ), charantin (Ⅳ), and ?-sitosterol (Ⅴ). Conclusion For all the first time, compound Ⅰ is found in the plants of Momordica L., compound Ⅱ is found as novel natural product in this plant, and compound Ⅲ is found in China.

New cucuribitane saponin from Momordica charantia / 中草药

Objective To study the chemical constituents in Momordica charantia.Methods The alcohol extract was isolated by macroporous adsorption resin and silica gel,and the compound structures were identified by spectral methods.Results Two couple isomers were isolated,the structure of one couple was identified as 19R-5?,19-epoxycucurbita-6,23,25-trien-3?,19-diol(Ⅰa)and 19S-5?,19-epoxycucurbita-6,23,25-trien-3?,19-diol(Ⅰb);the structure of the other couple was identified as 3-O-glucopyranoside of 5?,19-epoxycucurbita-6,23,25-trien-3-ol(Ⅱa),and 3-O-allopyranoside of 5?,19-epoxycucurbita-6,23,25-trien-3-ol(Ⅱb).Conclusion New compounds Ⅰa,Ⅰb,Ⅱa,and Ⅱb are isolated from M.charantia for the first time.

Chemical constituents in fruit of Momordica charantia / 中草药

Objective To study the chemical constituents in the mature fruit of Momordica Charantia. Methods M. charantia was extracted by alcohol and then extracted by chloroform; isolation and purification were carried out by silica gel. Compounds were identified and elucidated by spectral and chemical methods. Results Five compounds were obtained and identified as aglycone of momordicoside F_1 (Ⅰ), 5, 25-stigmastadien-3-ol (Ⅱ), aglycone of momordicoside Ⅰ (Ⅲ), charantin (Ⅳ), and ?-sitosterol (Ⅴ). Conclusion For the first time, compound Ⅰ is found as the novel natural product and compound Ⅱ is found in the fruit of M. charantia in China.

Novel compounds in Momordica charantia / 中草药

Objective To study new active constituents in the mature fruits of Momordica charantia.Methods M.charantia was extracted by alcohol and purified by D-101 macroporous adsorptive resin.The isolation and purification were carried out by silica gel and semiprepared HPLC,the compounds were identified and elucidated by spectral and chemical methods.Results Eight compounds were obtained and identified as charantadiol A(5?,19-epoxycucurbita-6,23(E),25(26)-triene-3?,19(R)-diol,Ⅰ),(+)-eduesmin(Ⅱ),bluemenol A(Ⅲ),karatavilagenin D(Ⅳ),5?,19-epoxycucurbita-6,23-diene-3?-19,25-triol(Ⅴ),5,19-epoxy-5?-cucurbita-6,23(E)-diene3?,25-diol(Ⅵ),3?,7?-trihydroxy-cucurbita-5,23(E)-diene-19-al(Ⅶ) and ?-sitosterol(Ⅷ).Conclusion Compound Ⅰ is a novel one,named charantadiol A.Compounds Ⅱ and Ⅲ are obtained from M.charantia for the first time.

Quality Standard of Tangkang Capsule / 中国药房

OBJECTIVE:To establish the quality standard of Tangkang capsule. METHODS:Momordica charantia L. and Euonymus alatus(Thunb.)Sieb.,the main ingredients in Tangkang capsule including were identified by TLC, meanwhile, the content of total Momordica charantian saponin was determined by UV-Vis. RESULTS: The TLC spots were clear and the separation degree was good. The linear range of Ginsenoside Rg1 was 72～252 ?g(r=0.999 7) with average recovery rate at 100.68% (RSD=1.43%,n=6). CONCLUSION: The established quality standard can be used for the quality control of this Tangkang capsule.

STUDIES ON COMPONENTS WITH ANTIHYPERGLYCEMIC EFFECT OF MOMORDICA CHARANTIA L. POLYSACCHARIDES / 营养学报

Objective To investigate the antihyperglycemic effect and the most effective com-ponent of Momordica charantia L. and its mechanism. Method Water-extracted and alkali-extracted Momordica charantia L. polysaccharides with different molecular weight on streptozotocin induced diabetes mellitus mice were carried out. The antihyperglycemic mechanism was preliminarily analyzed. Results Alkali-extracted Momordica charantia L. polysaccharides could lower blood sugar,improve glucose tolerance and increase the content of hepatic glycogen significantly at the dose of both 200 and 400mg/kg bw. The content of fructosamine was also lowered. Conclusion The component of alkali extracted Momordica charantia L polysacchaides with maximal molecular weight possessed the best antihyperglycemic effect.

EFFECTS OF MOMORDICA CHARANTIA L. SAPONINS ON IMMUNE SYSTEM OF SENILE MICE / 营养学报

Objective: To study the regulatory effects of Momordica charantia L. saponins on immune function of senile mice. Methods: Female senile Kunming mice (15 months) were divided into senile control group(SC), experiment group 1(E1) and experiment group 2(E2). SC drank tap water, E1 and E2 drank tap water supplemented with 100mg/L and 200mg/L Momordica saponins respectively. After 5 weeks, samples were collected for IL 2, TNF ?, T cell subpopulation, phagocytosis index, thymus and spleen indices. At the same time, splenocyte, peritoneal macrophage, thymocyte obtained from senile mice, were cultured in medium containing 25mg/L and 50mg/L Momordica saponins respectively, and tested for IL 2, TNF ? and apoptosis. Results: There was no change in spleen index, but thymus index increased markedly in E2 group. Phagocytosis index, serum IL 2 level were increased obviously, while there was significant difference between E2 and E1. At the same time, ratio of CD8 + T cell raised significantly in thymus, and ratio CD + 4 CD + 8 T cell declined obviously in both thymus and spleen. Momordica saponins could increase splenocyte to secrete IL 2, enhance peritoneal macrophage to secrete TNF ?, but had no effect on apoptosis of thymocyte. Conclusion: Momordica saponins can improve immune function of senile mice by modulating the ratio of T cell subpopulation.