摘要
紫娟茶由含酸甲醇提取后,经过乙醚、氯仿的液液分配以及Amberlite XAD-7HP树脂的吸附洗脱,得到花青素粗提物。针对花青素提取物,采用DPPH法、ABTS法、FRAP法研究探讨了其抗氧化性及清除自由基的能力。试验结果显示,捕捉DPPH自由基的能力:紫娟茶中花青素提取物>BHA>BHT,清除ABTS+阳离子自由基的能力和FRAP抗氧化能力都是:BHA>紫娟茶中花青素提取物>BHT。
Anthocyanins from Zi juan tea were exteacted by using acid-containing methanol as solvent and patitioned with ether and chloroform. The extract of anthocyanins was purified by Amberlite XAD-7HP chromatograpHy. The antioxidant and free radical scavenging capacity of anthocyanin extracts .were evaluated by DPPH method, ABTS method and FRAP method. The results showed that the ability of scavenging DPPH ： anthocyanins extracts〉BHA〉BHT; the ABTS radical scavenging activities and the FRAP antioxidant： BHA〉anthocyanins extracs〉BHT.
出处
《食品研究与开发》
CAS
北大核心
2016年第9期42-46,共5页
Food Research and Development
关键词
紫娟茶
花青素
抗氧化性
Zi juan tea
anthocyanin
antioxidant activity
