| 不同膨润土对模拟酒溶液中蛋白质的吸附 |
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| 引用本文： | 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].中国化学工程学报,2007,15(5):632-638. |
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| 作者姓名： | 孙喜房 李春 武占省 徐小琳 任玲 赵宏生 |
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| 作者单位： | [1]Laboratory of Green Chemical and Technology, Shihczi 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 |
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| 基金项目： | 国家自然科学基金，the Program of Ministry of Education for New Century Excellent Talents，the Doctor Funds of Xinjiang Bingtuan，the Shihezi University's Key Scientific and Technological Project |
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| 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） indicated that it was easy for the entrance of water and the absorbance of protein. Higher temperature was found favorable to eliminate more proteins and it took about 20 to 40min to arrive at the maximum adsorption.
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| 关 键 词： | 膨润土 模拟酒溶液 蛋白质 吸附作用 |
| 收稿时间： | 2006-12-18 |
| 修稿时间： | 2006-12-18 |
Adsorption of protein from model wine solution by different bentonites |
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| SUN Xifang,LI Chun,WU Zhansheng,XU Xiaolin,REN Ling,ZHAO Hongsheng.Adsorption of protein from model wine solution by different bentonites[J].Chinese Journal of Chemical Engineering,2007,15(5):632-638. |
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| Authors: | SUN Xifang LI Chun WU Zhansheng XU Xiaolin REN Ling ZHAO Hongsheng |
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| Affiliation: | Laboratory of Green Chemical and Technology, Shihezi University, Xinjiang 832003, China;School of Life Science and Technology, Beijing Institute of Technology, Beijing 100081, China;Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China |
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| 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) indicated that it was easy for the entrance of water and the absorbance of protein. Higher temperature was found favorable to eliminate more proteins and it took about 20 to 40min to arrive at the maximum adsorption. |
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| Keywords: | adsorption protein model wine solution bentonite |
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