用于微生物分析的乳制品膜过滤法。
Membrane filtration of dairy products for microbiological analysis.
作者信息
Peterkin P I, Sharpe A N
出版信息
Appl Environ Microbiol. 1980 Jun;39(6):1138-43. doi: 10.1128/aem.39.6.1138-1143.1980.
Abstract
Incubation with protease or Tween 80 or both dramatically improved the membrane filterability of liquid milks, powdered skim milk, and frozen dairy products without reducing the viability of five common species of bacteria. The technique can permit isolation and enumeration of microorganisms from test samples of these foods as large as 5 g. Flow direction through the filter was an important factor in filterability of dairy products.
摘要
用蛋白酶或吐温80或两者共同处理，能显著提高液态奶、脱脂奶粉和冷冻乳制品的膜过滤性，且不降低五种常见细菌的生存能力。该技术可用于从多达5克的这些食品测试样品中分离和计数微生物。通过过滤器的流动方向是乳制品过滤性的一个重要因素。
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