BS ISO 20128-2007 乳制品.在选择培养基上推定嗜酸乳酸菌的菌落.37℃时的菌落计数技术

标准号：BS ISO 20128-2007
中文标准名称：乳制品.在选择培养基上推定嗜酸乳酸菌的菌落.37℃时的菌落计数技术
英文标准名称：Milk products - Enumeration of presumptive Lactobacillus acidophilus on a selective medium - Colony-count technique at 37 °C
标准类型：X16
发布日期：2007/6/29 12:00:00
实施日期：2007/6/29 12:00:00
中国标准分类号：X16
国际标准分类号：07.100.30;67.100.01
适用范围：ISO 20128|IDF 192:2006 specifies a method for the enumeration of presumptive Lactobacillus acidophilus in milk products on a selective medium by using a colony-count technique at 37 °C.The method is applicable to fermented and non-fermented milks, milk powders and infant formulae where presumptive L. acidophilus is present and in combination with other lactic acid bacteria and bifidobacteria.The method is not applicable when the number of presumptive L. acidophilus is less than 104 CFU/g and the numbers of Lactobacillus rhamnosus, Lactobacillus reuteri and Lactobacillus paracasei subsp. paracasei are greater than 106 CFU/g.