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2006•Journal of Kunming University of Science and TechnologyRequires access

Technology on the Extraction of Flavones from Ginkgo Leaves

Huang Xiaofeng

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Abstract

Using ethanol-water as leaching reagent,the technological factors extracting flavones from Ginkgo leaves are studied.According to the result of leaching efficiency,70%ethanol solution is selected as leaching reagent.The best conditions of extraction are determined by the orthogonal tests: leaching temperature is 70 ℃,and the ratio of solid to liquid is 1∶20,pH is 8.Under this condition,leaching efficiency of flavones from Ginkgo leaves can reach 92.2%.

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What this paper is about

Using ethanol-water as leaching reagent,the technological factors extracting flavones from Ginkgo leaves are studied.According to the result of leaching efficiency,70%ethanol solution is selected as leaching reagent.The best conditions of extraction are determined by the orthogonal tests: leaching temperature is 70 ℃,and the ratio of solid to liquid is 1∶20,pH is 8.Under this condition,leaching efficiency of flavones from Ginkgo leaves can reach 92.2%.

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Available abstract

Using ethanol-water as leaching reagent,the technological factors extracting flavones from Ginkgo leaves are studied.According to the result of leaching efficiency,70%ethanol solution is selected as leaching reagent.The best conditions of extraction are determined by the orthogonal tests: leaching temperature is 70 ℃,and the ratio of solid to liquid is 1∶20,pH is 8.Under this condition,leaching efficiency of flavones from Ginkgo leaves can reach 92.2%.

Key concepts: Flavones, Reagent, Leaching (pedology), Ginkgo, Chemistry, Extraction (chemistry), Ethanol, Environmental chemistry

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