摘要
以脱脂大麦粉为原料,分别以70%的甲醇、乙醇、丙酮为溶剂进行提取。通过还原能力、清除DPPH自由基能力及抑制亚油酸氧化三种抗氧化体系的测定比较三种不同提取物的抗氧化性。结果表明,不同提取物在三个体系中都具有较强的抗氧化性质,抗氧化能力的大小顺序为:70%丙酮提取物>70%乙醇提取物>70%甲醇提取物,并且抗氧化能力的大小与提取物中总酚和原花青素的含量高低相一致。
The defatted barley powder was used as primal material and the antioxidant activities of different solvents extracts were studied by various antioxidant assays, including reducing power, DPPH free radical scavenging and linoleic acid oxidation inhibition. The result showed that the antioxidant activities were in the order： 70% acetone extract 〉 70% ethanol extract 〉 70% methanol extract. It was correspond with the contents of total phenolics and proanthocyanidins in different extracts.
出处
《食品工业科技》
CAS
CSCD
北大核心
2007年第2期131-132,136,共3页
Science and Technology of Food Industry
关键词
大麦
抗氧化性
提取物
总酚
原花青素
barley
antioxidant activity
extracts
total phenolics
proanthocyanidins
