降低山楂汁有机酸的树脂筛选  

The Screening of Resins Reducing Organic Acids in Hawthorn Fruit Juice

作　　者：赵玉平[1] 宋继萍 孙祖莉[1] 杨建荣[1] 渠飞翔[1] 郑向平[1] 宋普[1] 田甜甜[1] 

机构地区：[1]烟台大学生命科学学院,山东烟台264005 [2]蓬莱市国宾葡萄酒庄有限公司,山东烟台266071

出　　处：《食品研究与开发》2013年第4期57-60,共4页Food Research and Development

基　　金：山东省自然科学基金资助项目(ZR2011CM026)

摘　　要：山楂汁中的有机酸含量高达2.5%~4.5%,影响着山楂汁的饮用,采用弱碱性阴离子交换树脂D301G,D370,D382对山楂汁进行降酸研究,结果表明D301G树脂具有很好的降低山楂汁有机酸的效果,能够将有机酸降低至原汁的60%左右,pH从2.87升高到3.39,黄酮的吸附量较少。流速对降酸过程有明显的影响,5 BV/h比6 BV/h处理得到的山楂汁多。The content of organic acids in hawthorn fruit juice can reach 2.5 %-4.5 % ,which influents the consumption. Deacidification of hawthorn juice by three weakly basic anion exchange resins-D301G,D370, D382 were investigated. The results showed that D301G resin was the most efficient resin because the resin decreased organic acids more than 60 % organic acids of hawthorn juice,increased pH from 2.87 to 3.39 and diminished somewhat the flavonoids. Hawthorn juice deacidificated in 5 BV/h speed was more than that in the speed of 6 BV/h.

关 键 词：山楂汁 有机酸 弱碱性阴离子交换树脂 降酸 黄酮 

分 类 号：TS255.44[轻工技术与工程—农产品加工及贮藏工程]