食品工业科技2012，Vol.33Issue(21)：146-148,200,4.
三种谷物的不同乙醇浓度提取物抗氧化活性研究
Antioxidant capacity of different ethanol extraction from three grains
申迎宾 1张晖 1齐希光 1丁香丽 1程素娇 1赵兰涛 1王立1
作者信息
- 1. 江南大学食品学院科学与技术国家重点实验室,江南大学食品学院,江苏无锡214122
- 折叠
摘要
Abstract
The antioxidant capacity of different ethanol extraction from three grains (sorghum, purple rice, rhubarb rice) were evaluated.During the experiment,total phenols, DPPH· scavenging ability and total antioxidant capacity were measured with the water,60% ,95% ethanol extractions of the three grains. Meanwhile, the mice blood cells hemolytic effect of 60% ethanol extracts of three grains was evaluated in vitro.The results showed that the total phenol content of sorghum water extraction was 2.34mg/g (GAE/DW), which was 4 times the content of purple rice and 12.23 times that of rhubarb rice,respectively.DPPH · scavenging ability of sorghum water extraction was 43.58%, however, DPPH · scavenging ab In 60% ethanol concentration, the DPPH · ity for the water extraction of purple scavenging ability of three grains rice and rhubarb rice was very low. were 89.88% ,90.16% and 64.70%, respectively.The total antioxidant capacity,0.16mmol/g (TEAC/DW), was 3.99 times and 24.89 times that of purple rice and rhubarb rice.The total phenol content of 95% ethanol extraction of rhubarb rice was 1.38mg/g (GAE/ DW) ,total antioxidant capacity was strong, but the DPPH · scavenging ability was low. The inhibition rates of hemolytic effect of three grains were 50.??%, 16.73% and 22.79% respectively at 2mg/mL.The results showed that sorghum could protect blood cells membrane modestly.关键词
谷物/抗氧化/DPPH·/FRAP/溶血性Key words
grain/antioxidant/DPPH ·/FRAP/hemolytic分类
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申迎宾,张晖,齐希光,丁香丽,程素娇,赵兰涛,王立..三种谷物的不同乙醇浓度提取物抗氧化活性研究[J].食品工业科技,2012,33(21):146-148,200,4.
