Adsorption of Protein from Model Wine Solution by Different Bentonites  

作　　者：孙喜房 李春 武占省 徐小琳 任玲 赵宏生 

机构地区：[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

出　　处：《Chinese Journal of Chemical Engineering》2007年第5期632-638,共7页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China （No.20466002）, the Program of Ministry of Education for New Century Excellent Talents （NCET-04-0989）, the Doctor Funds of Xinjiang Bingtuan （04BSZJ04） and the Shihezi University＇s. Key Scientific and Technological Project （ZDGG2004-01）.

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.从模型酒的蛋白质的吸附在乙醇的不同温度， pH 价值，接触时间，和集中下面被调查，由某些火山灰成胶状黏土。结果证明乙醇分子能拓宽蛋白质分子的隧道到火山灰成胶状黏土的夹层，并且最大的蛋白质吸附数量发生在 12% 的乙醇集中下面(由卷) 并且 3.56 的 pH 值。增加的单个点 Brunauer-Emmitt-Teller (赌注) 表面区域(SBET ) 和吸附毛孔体积(VAds ) 分别地从表面建议了火山灰成胶状黏土表面和一条更宽的蛋白质隧道的大量活跃吸附地点到火山灰成胶状黏土的内部吸附地点。同时，更高的甲又蓝色测试(MBT ) 和胀大的索引(Sw ) 显示它为水的入口和蛋白质的吸收度是容易的。更高的温度被发现有利消除更多的蛋白质，到达最大的吸附带了大约 20 去 40min。

关 键 词：ADSORPTION protein model wine solution BENTONITE 

分 类 号：O643.1[理学—物理化学]