2009•Heilongjiang yiyao kexueRequires access

Extraction of flavonoids from cherry leaves with supercritical CO_2

Jiao Shu-qing

Abstract

Objective:To determine the optimal extraction technology of flavonoid from cherry leaves.Methods:Supercritical CO2 extraction was applied with absolute alcohol as entrainer.The influence of extraction pressure,temperature and time on extraction yield was investigated by orthogonal experimentation.Results:The optimal extraction conditions showed pressure 20MPa,temperature 45℃ and time 3h.Conclusion:Method of extraction of flavonoid from cherry leaves with supercritical CO2 is feasible.Product quality is good and extraction yield is relatively high.

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Key concepts: Extraction (chemistry), Supercritical fluid, Yield (engineering), Flavonoid, Chemistry, Chromatography, Supercritical carbon dioxide, Supercritical fluid extraction