| 大孔吸附树脂对蛋清蛋白水解物的吸附特性研究 |
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| 引用本文： | 杨万根,张煜,许时婴,王璋. 大孔吸附树脂对蛋清蛋白水解物的吸附特性研究[J]. 食品与机械, 2007, 23(2): 62-65 |
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| 作者姓名： | 杨万根 张煜 许时婴 王璋 |
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| 作者单位： | 江南大学食品学院,江苏,无锡,214036 |
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| 摘 要： | 为纯化蛋清蛋白质水解物以得到质量良好的产品，采用大孔吸附树脂对蛋清蛋白质水解液进行脱盐处理。对9种不同树脂进行了筛选实验，通过测定9种树脂的吸附率与解吸率衡量它们的性能，发现DA201-C型树脂的吸附率为80．85％，解吸率在70％酒精作为洗脱剂时为79．27％，两项指标皆优于其它树脂，从而筛选出最佳树脂为DA201-C型。为了阐明吸附行为的物化本质，进一步对吸附的静态吸附动力学与热力学性质进行了研究，结果表明：树脂对EWPH的吸附属于快速平衡型，且是吸热的物理吸附过程。
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| 关 键 词： | 大孔吸附树脂 蛋清蛋白水解物 吸附 解吸 热力学 |
| 收稿时间： | 2006-01-15 |
| 修稿时间： | 2006-01-15 |
Study on the adsorption attributes of egg white protein hydrolysate (EWPH) on macroporous adsorption resin |
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| YANG Wan-gen,ZHANG Yu,XU Shi-ying,WANG Zhang. Study on the adsorption attributes of egg white protein hydrolysate (EWPH) on macroporous adsorption resin[J]. Food and Machinery, 2007, 23(2): 62-65 |
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| Authors: | YANG Wan-gen ZHANG Yu XU Shi-ying WANG Zhang |
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| Affiliation: | School of Food Science and Technology, University of Southern Yangtze, W uxi, Jiangsu 214036, China |
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| Abstract: | To purify egg white protein hydrolysate(EWPH)and get products of good quality,macroporous adsorption resins(MARs)were used.On comparing the rates of adsorption and desorption using 9 MARs,DA201-C MAR was selected having the highest rate of adsorption and desorption of 80.85 and 79.27% respectively using 70% alcohol as desorbent.To further understand the nature of the adsorption process,static adsorption dynamics and thermodynamics of EWPH on DA201-C MAR were studied and showed that the adsorption was a process of quick-balanced and endothermal,physical adsorption. |
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| Keywords: | Macroporous adsorption resin Egg white protein hydrolysate Adsorption Desorption Thermodynamics |
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