摘要
以云南墨江紫米为原料提取花青素,得到最优提取方案为:将体积分数70%的乙醇溶液的pH值调节为3,按照1∶15的料液比,在60℃条件下提取30min。并研究了墨江紫米花青素的还原能力和清除DPPH自由基的能力,结果表明,墨江紫米花青素具有抗氧化活性,是一种天然的食用色素,具有较高的开发利用价值。
The anthocyanin was extracted from Mojiang purple rice in Yunnan province. The optimal extraction conditions were as follows： adjusting the pH value of the 70 % ethanol solution to 3, and extracting for 30 min at 60℃ according to the ra- tio of material to liquid of 1 ： 15. We studied the reducing capacity of anthocyanins and their ability to remove DPPH radicals. The results showed that the Mojiang purple anthocyanins had antioxidant activity and was a natural food pigment with high de- velopment and utilization value.
作者
张文彦
杨晓帆
张志坚
李琛
ZHANG Wen-yan;YANG Xiao-fan;ZHANG Zhi-jian;LI Chen(Yunnan Food and Oil Science Research Institute,Kunming 650033,China)
出处
《粮食与饲料工业》
CAS
2018年第10期37-39,共3页
Cereal & Feed Industry
基金
云南省科技厅基础研究项目(2015FD072)的资助
关键词
紫米
花青素
抗氧化活性
purple rice
anthocyanin
antioxidant activity
作者简介
张文彦（1986-），女，硕士，工程师，研究方向为粮油加工及储藏。
