模糊数学在猕猴桃果汁超滤膜优选中的应用

The Application of Fuzzy Mathematics on the Potimal Choice of Hollow Fiber Ultrafiltration Membrane Used in the Clarification of Kiwifruit Juice

猕猴桃果汁的澄清中引入模糊数学综合评判法对三种国产滤膜进行优选。通过建立滤膜适用性的模糊二级综合评判模型，对实验测得的数据指标进行模糊线性变换运算，得到了各膜的综合评分。最终结果可知：综合考虑膜特性、澄清效果和营养成分的保留等几方面因素，截留分子量为４万的聚砜中空纤维膜的性能要优于另外两种膜。

There are many advantages of ultrafiltration applied on the clarification of fruit juice.Three membranes of different materials and cut-off molecular weights were used in the study of the clarification of kiwifruit juice by hollow fiber ultrafiltration.The proper membrane was picked out by the method of fuzzy mathematical comprehensive evaluation.The score was obtained by setting up the model of fuzz two--grade comprehensive evaluation and calculating the experiment data with fuzzy linear transformation .The last results indicated that the membrane,whoSe material was PSFand cut-off molecular weight 40 thousand,was better than the other two membranes used in the clarification of Kiwifruit juice if taking the factors such as the nature of membrane the clarified effect and the uetention of nutrient contents etc Into consider atior.