食品科学 ›› 2011, Vol. 32 ›› Issue (12): 156-159.doi: 10.7506/spkx1002-6630-201112034

• 生物工程 • 上一篇    下一篇

树脂法纯化鸭血糯色素的研究

刘晶晶,刘进前,王雪锋,韩曜平   

  1. 常熟理工学院生物与食品工程系
  • 出版日期:2011-06-25 发布日期:2011-06-10

Purification of Duck-blood Glutinous Rice Pigment by Macroporous Resin Adsorption

LIU Jing-jing,LIU Jin-qian,WANG Xue-feng,HAN Yao-ping   

  1. Department of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
  • Online:2011-06-25 Published:2011-06-10

摘要: 目的:筛选较优的树脂来纯化鸭血糯色素。方法:选择5种大孔吸附树脂,研究其对鸭血糯色素的吸附率和解吸率,筛选出较优的树脂;再考察上样液浓度、pH值、吸附流速和洗脱速率对该树脂吸附率和解吸率的影响。结果:鸭血糯色素最佳分离纯化工艺参数为NKA-9型大孔树脂,样品质量浓度1.0mg/mL,上柱溶液pH1.0,以1.0mL/min的吸附流速上样,用5BV体积分数为70%乙醇溶液以1.0mL/min洗脱速率洗脱。结论:NKA-9型大孔树脂吸附量大,易于洗脱,纯化分离效果好,适用于纯化鸭血糯色素。

关键词: 树脂, 鸭血糯, 色素, 纯化

Abstract: The objective of this work to purify the crude pigment extracted from duck-blood glutinous rice by macroporous resin adsorption. Five types of macroporous resin were comparatively tested for their adsorption and desorption performance towards duck-blood glutinous rice pigment, and resin NKA-9 was considered best for purifying duck-blood glutinous rice pigment. Further, the effects of sample concentration, pH and loading flow rate and desorption flow rate on the adsorption and desorption rates of resin NKA-9 were investigated, and the results showed that the optimal purification parameters for duck-blood glutinous rice pigment was sample pH 1.0, sample loading flow rate of 1 mL/min, sample concentration of 1.0 mg/mL and desorption with 5 BV of 70% ethanol at a flow rate of 1.0 mL/min. In conclusion, NKA-9 resin is suitable to purify duck-blood glutinous rice pigment due to its advantages of large adsorption capacity, easy desorption and high resolution.

Key words: duck-blood glutinous rice, pigment, macroporous resin, purification

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