FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (9): 48-51.

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Study on Antioxidant Activities of Ethanol Extracts from Lotus Germ in vitro

 CHEN  Jing, ZHANG  Min, ZHENG  Tie-Song, TAO  Jin-Hong   

  1. Department of Food Science and Nutrition,Nanjing Normal University,Nanjing 210097,China
  • Online:2008-09-15 Published:2011-12-08

Abstract: The scavenging effects of ethanol extracts from lotus germ on oxygen radicals and their inhibitory effect on lipid peroxidation(LPO) were studied . The results showed that the content of total flavonoids in lotus germ determined by ultraviolet spectrophotometry is 20.01 mg/g, and the extracts can both scavenge hydroxyl free radical(·OH) produced by Fenton reaction and superoxide anion free radical(O2·) produced by oxidation of pyrogallol, and their inhibitory concentrations of 50% (IC50) are 0.195 g/ml and 0.461 g/ml, respectively. The extracts also have inhibitory effects on lipid peroxidation in liver and kidney homogenate spontaneously, and their IC50 values are 3.996 mg/ml and 4.527 mg/ml , respectively.

Key words: ethanol extracts from lotus germ, antioxidant activities, oxygen radicals, lipid peroxidation