作　　者： ; ; ; ; ; ; ; ;

机构地区： 中国水产科学研究院南海水产研究所

出　　处： 《食品科学》 2010年第19期153-156,共4页

摘　　要： 采用切向流超滤技术浓缩鳀鱼蒸煮废弃液中蛋白质,在前期对超滤压力、进样流速、样品pH值、操作温度等操作条件研究的基础上,建立超滤数学模型,通过实验获得拟合参数。结果表明:模型理论值曲线与实验值曲线拟合良好,各曲线的相关系数均在0.99左右,且膜通量理论值和实验值之间的误差较小,范围在0.44%～10.00%之间。在工业化设计和实践中,可以根据该数学模型预测超滤条件的变化对超滤过程的影响,根据该模型选择最佳的操作条件,有效地控制浓差极化和膜污染。 In this work,tangential flow ultrafiltration was used to concentrate proteins in the cooking soup of Engraulis japonicus. Based on the studies on operating pressure and sample flow rate and pH,a mathematic model describing membrane flux as a function of permeate pressure,protein concentration and sample flow rate was established. The results showed that the predicted results of membrane flux as a function of permeate pressure at three constant levels of protein concentration and sample flow rate were in good agreement with the experimental results well,with a relative error varying between 0.44% and 10.00%,and the correlation coefficients were all around 0.99. Using this model in industrial design and practice,flux change can be predicted and optimal operating conditions can also be selected for solving the problems of concentration polarization and membrane pollution.

关 键 词： 超滤 鳀 膜通量 数学模型

领　　域： [轻工技术与工程] [轻工技术与工程]