Extraction of Flavonoids from Leaves of Coix lacryma-jobi L.
Extraction of Flavonoids from Leaves of Coix lacryma-jobi L.作者机构：College of Clinical Laboratory MedicineYoujiang Medical University for Nationalities College of Basic Medical ScienceYoujiang Medical University for Nationalities College of PharmacyYoujiang Medicine University for Nationalities Key Laboratory of Guangxi Universities on National Medicine in Youjiang River Basin
出 版 物：《Medicinal Plant》 (药用植物：英文版)
年 卷 期：2018年第9卷第1期
页 面：9-12页
基 金：Supported by Project of National Natural Science Foundation(81360684) Natural Science Foundation Project of Guangxi(2011GXNSFA018046) the 12th Five-Year TCM Key Discipline Chinese Medicine Chemistry Construction Program of State Administration of Traditional Chinese Medicine(Guo Zhong Yi Yao Ren Jiao Fa32) Key Discipline Chinese Medicine Chemistry Construction Program of Guangxi(Gui Jiao Ke Yan16) Program of Key Laboratory of Guangxi Universities on National Medicine in Youjiang River Basin(Gui Jiao Ke Yan14) Student’s Platform for Innovation and Entrepreneurship Training Program of Guangxi in 2015(201510599026)
主 题：Leaves of Coix lacryma-jobi L. Flavonoids Extraction Single factor experiment Orthogonal experiment
摘 要：[Objectives] To extract the flavonoids from leaves of Coix lacryma-jobi L. [Methods] Ethanol extraction method was adopted,spectrophotometry was used,and single factor experiment and orthogonal experiment were carried out to study the effects of ethanol percentage,extraction temperature,solid-to-liquid ratio and extraction time on the extraction of total flavonoids from leaves of C. lacryma-jobi L.[Results] The order of 4 factors influencing the extraction of flavonoids from leaves of C. lacryma-jobi L. was: solid-to-liquid ratio extraction time ethanol percentage extraction temperature. When the extraction temperature was 70℃,the extraction time was 1. 5 h and the solid-liquid ratio was 1: 10,the ethanol percentage was 60%,the extraction effect was the best,extraction of flavonoids was 0. 107 5 mg/m L.[Conclusions] This study is expected to provide a theoretical basis for further development and utilization of C. lacryma-jobi L.
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