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Position: Home > Articles > Preparation of Lichee Polyphenols and Its DPPH Radical Scavenging Activity FOOD SCIENCE 2006,27 (7) 86-88

荔枝多酚的分离制备及清除DPPH活性

作  者:
熊何健;郑建华;吴国宏;王美贵
单  位:
集美大学生物工程学院
关键词:
荔枝多酚;制备;二苯基苦基苯肼(DPPH)自由基
摘  要:
本文对荔枝壳中多酚类物质的分离制备条件及其清除DPPH活性进行研究。荔枝壳用8倍体积(V/W)50%的丙酮溶液室温下浸提2次,每次浸提2h,回收溶剂,荔枝多酚粗提物得率为34.2%。粗提物经AB-8型树脂柱层析纯化,30%乙醇洗脱组分的多酚回收率为86.8%,纯度为30.0%,该组分清除DPPH的IC50值为4.17μg/ml。
译  名:
Preparation of Lichee Polyphenols and Its DPPH Radical Scavenging Activity
作  者:
XIONG He-jian,ZHENG Jian-hua,WU Guo-hong,WANG Mei-gui (College of Biological Engineering, Jimei University, Xiamen 361021, China)
关键词:
lichee polyphenol;preparation;2, 2-diphenyl-1-picrylhydrazyl (DPPH)
摘  要:
In this paper, the preparation technology of extracting polyphenols from lichee hulls and its DPPH radical scavenging activity were studied. Lichee hulls were ground, then infused with 8 volumes(V/W) of 50% acetone solution at room temperature for 2 times, 2h per time. Under these conditions, the yield of crude polyphenols was 34.2%. The crude polyphenols was purified with AB-8 type resin, the purity of the 30% ethanol elution part, with the reclaim rate of polyphenols was 85.5%, and its IC50 value on scavenging DPPH radical was 4.17μg/ml.

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