Extraction of Flavonoids from Clovers

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The extraction of flavonoids from clovers was optimized to maximize flavonoid yield Y in this study. A central composite design of response surface methodology involving extracting time, liquid-solid ratio, extracting temperature and ethanol concentration was used, and second-order model for Y was employed to generate the response surfaces. The optimum condition for Y was determined as follows: extracting time 24min, liquid-solid ratio 20, extracting temperature 80°C, and ethanol concentration 72%. Under the optimum condition, the flavonoid yield was 2.49%.

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360-363

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August 2012

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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[1] K.D.R. Setchell, A. Cassidy, Dietary isoflavones: biological effects and relevance to human health,J. Nutr., 1999, vol. 129, pp. 758S–767S.

DOI: 10.1093/jn/129.3.758s

Google Scholar

[2] S.S. Pekkarinen, I.M. Heinonen, A.I. Hopia, Flavonoid quercetin, myricetin, kaemferol and (+)-catechin as antioxidants in methyl linoleate, J. Sci. Food. Agric., 1999, vol. 79, pp.499-506.

DOI: 10.1002/(sici)1097-0010(19990315)79:4<499::aid-jsfa204>3.0.co;2-u

Google Scholar

[3] C. Engelman, E. Blot, Y. Panis, Apigenin-strong cytostatic and anti-angiogenic action in vitro contrasted by lack of efficacy in vivo, Phytomedicine, 2002, vol. 9, pp.489-495.

DOI: 10.1078/09447110260573100

Google Scholar

[4] C. Xie, L. Xu, X. Li, K. Li, B. Zhao, S. Yang, Studies on chemical constitutents in fruit of Clover L. China, J. Chinese Materia Medica, 2001, vol. 26, p.323–324.

Google Scholar

[5] I.Y.S. Rustom, M.H. Lopez-Leiva, B.M. Nair, Optimization of extraction of peanut proteins with water by response surface methodology, J. Food Sci, 1991, vol. 56, pp.1660-1663.

DOI: 10.1111/j.1365-2621.1991.tb08665.x

Google Scholar