海南蒲桃叶黄酮的提取及抗氧化性研究

›› 2010, Vol. 44 ›› Issue (2): 27-30.

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Study on Extraction and Antioxidant Activities of Flavones from Syzygium cumini (Linn.) Skeels Leaves

ZHANG Liang-liang, CHEN Jia-hong, WANG Yong-mei, WU Dong-mei, XU Man, WU Zai-song

Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab. for Biomass Chemical Utilization;Key and Open Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China

Received:2009-12-02 Revised:1900-01-01 Online:2010-03-30 Published:2010-03-30

Abstract

Abstract: Orthogonal experiments were applied to optimize the extraction conditions for flavones from Syzygium cumini Linn. Skeels leaves. The optimum extraction conditions were: ethanol volume fraction 70%, raw material to liquid ratio 1:20(g:mL), extraction temperature 80℃, extraction time 3 h, and the yield of flavones was 6.06%. The in vitro-oxidation effect on DPPH· was investigated. The results showed that S.cumini leaves was an effective free radical scavenger, and had a significant scavenging effect. The elimination rate increase with the increase of flavones concentration within the range of 31.25-250m g/L. It can reach the highest value of 93.04%.

Key words: Syzygium cumini Linn. Skeels, flavones, antioxidant capacity, DPPH·

CLC Number:

TQ91

ZHANG Liang-liang;CHEN Jia-hong;WANG Yong-mei;WU Dong-mei;XU Man;WU Zai-song. Study on Extraction and Antioxidant Activities of Flavones from Syzygium cumini (Linn.) Skeels Leaves[J]. , 2010, 44(2): 27-30.

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Study on Extraction and Antioxidant Activities of Flavones from Syzygium cumini (Linn.) Skeels Leaves

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