不同膨润土对模拟酒溶液中蛋白质的吸附

CIESC Journal

• SEPARATION SCIENCE & ENGINEERING • 上一篇下一篇

不同膨润土对模拟酒溶液中蛋白质的吸附

孙喜房¹; 李春²; 武占省¹; 徐小琳¹; 任玲¹; 赵宏生³

¹ Laboratory of Green Chemical and Technology, Shihezi University, Xinjiang 832003, China
² School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China
³ Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

收稿日期:2006-12-18 修回日期:1900-01-01 出版日期:2007-10-28 发布日期:2007-10-28
通讯作者: 孙喜房

Adsorption of protein from model wine solution by different bentonites

SUN Xifang¹; LI Chun²; WU Zhansheng¹; XU Xiaolin¹; REN Ling¹; ZHAO Hongsheng³

¹ Laboratory of Green Chemical and Technology, Shihezi University, Xinjiang 832003, China
² School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China
³ Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China

Received:2006-12-18 Revised:1900-01-01 Online:2007-10-28 Published:2007-10-28
Contact: SUN Xifang

摘要/Abstract

摘要： The adsorption of protein from model wine was investigated under different temperatures, pH values, contact times, and concentrations of ethanol, by certain bentonites. The results showed that ethanol molecules could broaden the protein molecules’ channel to the interlayer of bentonite, and the maximum protein adsorption amount occurred under an ethanol concentration of 12% (by volume) and a pH value of 3.56. The increased single point Brunauer-Emmitt-Teller (BET) surface area (SBET) and adsorption pore volume (VAds) suggested a larger amount of active adsorption sites of the bentonite surface and a wider protein channel from the surface to the inner adsorption sites of bentonite, respectively. At the same time, higher methylene blue test (MBT) and swelling index (Sw) indi-cated that it was easy for the entrance of water and the absorbance of protein. Higher temperature was found favor-able to eliminate more proteins and it took about 20 to 40min to arrive at the maximum adsorption.

关键词: adsorption;protein;model wine solution;bentonite

Abstract: The adsorption of protein from model wine was investigated under different temperatures, pH values, contact times, and concentrations of ethanol, by certain bentonites. The results showed that ethanol molecules could broaden the protein molecules’ channel to the interlayer of bentonite, and the maximum protein adsorption amount occurred under an ethanol concentration of 12% (by volume) and a pH value of 3.56. The increased single point Brunauer-Emmitt-Teller (BET) surface area (SBET) and adsorption pore volume (VAds) suggested a larger amount of active adsorption sites of the bentonite surface and a wider protein channel from the surface to the inner adsorption sites of bentonite, respectively. At the same time, higher methylene blue test (MBT) and swelling index (Sw) indi-cated that it was easy for the entrance of water and the absorbance of protein. Higher temperature was found favor-able to eliminate more proteins and it took about 20 to 40min to arrive at the maximum adsorption.

Key words: adsorption, protein, model wine solution, bentonite

孙喜房, 李春, 武占省, 徐小琳, 任玲, 赵宏生. 不同膨润土对模拟酒溶液中蛋白质的吸附[J]. CIESC Journal.

SUN Xifang, LI Chun, WU Zhansheng, XU Xiaolin, REN Ling, ZHAO Hongsheng. Adsorption of protein from model wine solution by different bentonites[J]. .

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不同膨润土对模拟酒溶液中蛋白质的吸附

Adsorption of protein from model wine solution by different bentonites

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