The effects of biofilms formed on whey reverse osmosis membranes on the microbial quality of the concentrated product

被引：17
作者：
Anand, Sanjeev [1 ]
Hassan, Ashraf [1 ]
Avadhanula, Mallika [1 ]
机构：
[1] S Dakota State Univ, Dept Dairy Sci, Midwest Dairy Foods Res Ctr, Brookings, SD 57007 USA
来源：
INTERNATIONAL JOURNAL OF DAIRY TECHNOLOGY | 2012年 / 65卷 / 03期
关键词：
Bacterial; Biofilms; Whey; Reverse osmosis membrane; Retentate; DAIRY PROCESSING LINES; ULTRAFILTRATION;
D O I：
10.1111/j.1471-0307.2012.00848.x
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The study investigated the development of bacterial biofilms on spiral wound reverse osmosis (RO) whey concentration membranes and their influence on the microbial quality and safety of concentrated whey (retentate). Used RO membranes, obtained from a commercial whey processing plant, were evaluated at intervals of 2 months for a total duration of 14 months using standard techniques. Results confirmed the presence of multi-species bacterial biofilms on whey RO membranes. Considerable variations were noticed in the distribution pattern of biofilms constitutive microflora as the membranes aged. A greater increase in retentate counts as compared to feed suggested the possibilities of cross-contamination from the membrane biofilms.
引用
收藏
页码：451 / 455
页数：5
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