食品科学2017，Vol.38Issue(10)：236-241,6.DOI:10.7506/spkx1002-6630-201710039
陶瓷膜对脱脂乳中酪蛋白与其他组分的高效分离
Efficient Separation of Casein and Other Components from Skim Milk by Ceramic Membrane
摘要
Abstract
In this study,our objective was to quantify the capacity of a ceramic microfiltration (MF) membrane with a pore size of 200 nm to remove whey proteins,lactose,ash and calcium from skim milk.Skim milk was concentrated three times by microfiltration at 50 ℃,and then the resulting retentate was diluted to the original volume followed by three-fold concentration under the same conditions as for skim milk.The same treatment was performed on the retennate obtained from the second microfiltration.During the whole process,the cumulative removal percentages of α-lactalbuminn,β-lactoglobulin,lactose,ash and calcium calculated from the three filtrates obtained were 79.27％,71.64％,85.81％,62.16％,and 35.64％,respectively.After the second filtration,the pure water flux of the membrane was reduced 89.27％,and the membrane flux was recovered to 99.07％ of the initial level after cleaning the membrane with 2％ NaOH and 0.5％ nitric acid solution.关键词
微滤/陶瓷膜/脱除率/膜通量Key words
microfiltration/ceramic membrane/removal rate/membrane flux分类
轻工纺织引用本文复制引用
张瑞华,张书文,刘鹭,逄晓阳,芦晶,汪建明,吕加平..陶瓷膜对脱脂乳中酪蛋白与其他组分的高效分离[J].食品科学,2017,38(10):236-241,6.基金项目
“十二五”国家科技支撑计划项目(2013BAD18B10) （2013BAD18B10）
