摘要
对花生短肽脱盐方法进行了系统研究,比较了阴阳离子交换树脂法、大孔树脂法和阴阳离子混合床法的脱盐效果,结果显示,阴阳离子混合床脱盐法效果最优。在此基础上,对花生短肽阴阳离子混合床脱盐工艺进行优化,确定了花生短肽脱盐较优参数组合为：水解液过柱速度为5~10倍柱体积/h、水解液初始pH值4.5、阴阳离子树脂比例为3：2,在此条件下花生短肽脱盐率和回收率均大于80%。成分测定结果表明,脱盐后花生肽纯度达到90.25%。
The different desalting methods of peanut oligopeptide,including cation-anion exchange resins,macroporous resin and mixed bed,were studied.The mixed bed was proved to be the best one.On the basis,the desalting process of peanut oligopeptide by cation-anion exchange resins mixed bed was optimized to improve product purity.Results： The obtained optimum conditions are hydrolyte flow rate 5~10 BV/h,initial pH value of hydrolyte 4.5 and ratio of anion / cation exchange resins 3∶2.The desalting rate and oligopeptide recovery rate are all above 80%,better effect than the traditional desalting method.The purity of the desalting peanut oligopeptides is 90.25%.
出处
《中国粮油学报》
EI
CAS
CSCD
北大核心
2010年第2期117-120,共4页
Journal of the Chinese Cereals and Oils Association
基金
科技部"十一五"科技支撑计划项目(2006BAK02A07-2)
关键词
花生短肽
脱盐
混合床
peanut oligopeptides, desalinization, mixed bed
