›› 2006, Vol. 26 ›› Issue (1): 83-86.
• 研究报告 • Previous Articles Next Articles
ZHAO Xiao-li, YUE Hong, ZHANG Ying, LI Xiao-yin
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Abstract: Effective extraction of flavones from persimmon leaves is an important technique in bioresearch. In the present study, extraction and purification of flavones of persimmon leaves were carried out simultaneously by using an aqueous partitioning method. This two-phase aqueous system was prepared by dissolving suitable amounts of polyethylene glycol(PEG)and(NH4)2SO4 in aqueous solution. Flavones of persimmon leaves were recovered with optimum high yield and high concentration in the upper polymer-rich phase when 25% PEG 600and25% (NH4)2SO4 were applied. The optimum extraction conditions were pH value 11, MgCl2 3% and temperature 25℃.
Key words: flavones of persimmon leaves, polyethylene glycol, two-phase aqueous system
CLC Number:
TQ91
ZHAO Xiao-li;YUE Hong;ZHANG Ying;LI Xiao-yin. Partitional Behaviors of Flavones of Persimmon Leaves in Two-phase Aqueous System[J]. , 2006, 26(1): 83-86.
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http://www.cifp.ac.cn/EN/Y2006/V26/I1/83