食品科学 ›› 2012, Vol. 33 ›› Issue (6): 127-131.doi: 10.7506/spkx1002-6630-201206028

• 工艺技术 • 上一篇    下一篇

大孔吸附树脂脱除洋葱多糖色素技术研究

徐怀德1,李 晋1,李钰金2,陈 佳1,陶 红   

  1. 1. 西北农林科技大学食品科学与工程学院
    2.泰祥集团 山东省海洋食品营养研究院
  • 出版日期:2012-03-25 发布日期:2012-03-03

Using Macroporous Resin AB-8 for Pigment Removal from Onion Polysaccharides

XU Huai-de1,LI Jin1,LI Yu-jin2,CHEN Jia1,TAO Hong1   

  1. (1. College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; 2. Ocean Food Nutrition Research Institute of Shandong Taixiang Group, Rongcheng 264309, China)
  • Online:2012-03-25 Published:2012-03-03

摘要: 以黄皮洋葱为原料提取出洋葱粗多糖,采用大孔吸附树脂对多糖提取液中色素脱除技术进行研究。结果表明:优选出AB-8树脂、用量1g/20mL多糖提取液、pH5.0、温度40℃、质量浓度2792.5mg/L洋葱粗多糖液以3BV/h流速通过树脂柱,测得洋葱多糖液色素的脱除率86.71%,多糖保留率88.92%,表明AB-8树脂适合用于洋葱多糖提取液脱色。

关键词: 洋葱多糖, 大孔吸附树脂, 脱色

Abstract: The removal of pigments from crude polysaccharides from yellow skin onion was investigated. AB-8 was found to be the best adsorbent for pigments in yellow skin among 8 types of macroporous adsorption resin tested. The removal rate of pigments was 86.71% and the retention rate of polysaccharides when 20 mL of 2792.5 mg/L crude polysaccharide solution at pH 5.0 and 40 ℃ was made to flow through 1 g of AB-8 column at a velocity of 2792.5 mg/L. In conclusion, the resin is suitable for the decolorization of polyssacharides from yellow skin onion.

Key words: onion polysaccharides, macroporous adsorption resin, decolorization

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