标准号：ISO 11816-2-2003
实施状态：作废
中文名称：牛奶和奶制品.碱性磷酸酶的活性测定.第2部分:乳酪的荧光计法
英文名称：Milk and milk products - Determination of alkaline phosphatase activity - Part 2: Fluorometric method of cheese
发布日期：2003-02
被替代标准：ISO 11816-2-2016
代替标准：ISO/FDIS 11816-2-2002
采用标准：DIN EN ISO 11816-2-2003,IDT;BS EN ISO 11816-2-2003,IDT;EN ISO 11816-2-2003,IDT;NF V04-054-2-2003,IDT;SN EN ISO 11816-2-2003,IDT;OENORM EN ISO 11816-2-2003,IDT;PN-EN ISO 11816-2-2005,IDT;UNE-EN ISO 11816-2-2003,IDT;IDF 155-2-2003,IDT
起草单位：ISO/TC 34
标准简介：This part of ISO 11816 | IDF 155 specifies a fluorometric method for the determination of alkaline phosphatase activity in cheese.
This method is also applicable to soft cheeses and semi-hard cheeses for distinguishing raw milk cheeses from cheese produced with pasteurized milk, provided that the mould is only on the surface and not also in the inner part (e.g. blue-veined cheeses). This method can also be used to check the proper pasteurization of cheese or its raw material.
In large hard cheeses where the whey curd mixture is scalded at temperatures above 50 ℃, high temperatures remain for a relatively long time. This is especially the case in the centre of these cheeses, thus promoting phosphatase inactivation. To distinguish, therefore, between hard cheeses from raw milk and hard cheeses from pasteurized milk using this method requires a specific sampling technique for the cheese (see Clause 7).
文件格式：PDF
文件大小：196.82KB
文件页数：14
（以上信息更新时间为：2019-11-23）
ISO 11816-2-2003 牛奶和奶制品.碱性磷酸酶的活性测定.第2部分_乳酪的荧光计法.pdf
(196.82 KB)
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