摘要
以碱性蛋白酶水解制备所得大豆多肽为芯材、β-环糊精为包埋壁材制备大豆多肽微胶囊。以包埋率为评价指标,通过单因素、响应面优化试验得到制备大豆多肽-β-环糊精微胶囊的最佳工艺条件,并探究大豆多肽微胶囊的抗氧化能力变化。结果表明:大豆多肽微胶囊的最佳制备工艺条件为壁芯质量比2:1、包埋时间16 min、包埋初始pH 7.0,在此条件下的包埋率为(74.32±0.52)%,与预测值差异不显著(P>0.05)。抗氧化活性试验表明,大豆多肽微胶囊具有一定的抗氧化能力,对自由基的清除能力为ABTS+·>·OH>DPPH·。
With soybean polypeptide prepared by alkaline protease hydrolysis as core material andβ-cyclodextrin as embedded wall material,soybean polypeptide microcapsules were prepared.The optimal technological conditions for preparing soybean polypeptide-β-cyclodextrin microcapsules were obtained by single factor and response surface optimization test with embedding rate as evaluation index,and the changes of antioxidant capacity of soybean polypeptide microcapsules were investigated.The results showed that the optimal preparation conditions for soybean polypeptide microcapsules were as follows:wall-core mass ratio 2:1,embedding time 16 min,initial embedding pH 7.0.Under these conditions,the embedding rate was(74.32±0.52)%,and the difference with the predicted value was not significant(P>0.05).Antioxidant activity experiments showed that soybean polypeptide microcapsules had a certain antioxidant capacity,and the scavenging ability of free radicals was ABTS+·>·OH>DPPH·.
作者
尹乐斌
刘桠丽
何平
李乐乐
YIN Le-bin;LIU Ya-li;HE Ping;LI Le-le(School of Food and Chemical Engineering,Shaoyang University,Shaoyang 422000,Hunan,China;Key Laboratory of Soybean Product Processing and Safety Control in Hunan Province,Shaoyang University,Shaoyang 422000,Hunan,China)
出处
《粮食与油脂》
北大核心
2022年第2期116-120,共5页
Cereals & Oils
基金
湖南省教育厅优秀青年项目(18B427)
湖南省研究生科研创新项目(CX20201187)
湖南省科技创新计划资助(2020RC1011)。
关键词
大豆多肽
微胶囊
包埋率
抗氧化性
soybean polypeptide
microcapsule
embedding rate
antioxidant activity
