ISO 11816-2:2024 乳和乳制品 碱性磷酸酶活性的测定 第2部分：奶酪的荧光分析法

标准编号：ISO 11816-2:2024

中文名称：乳和乳制品 碱性磷酸酶活性的测定 第2部分：奶酪的荧光分析法

英文名称：Milk and milk products — Determination of alkaline phosphatase activity — Part 2: Fluorimetric method for cheese

发布日期：2024-01

标准范围

本文件规定了测定奶酪中碱性磷酸酶（ALP）（EC？3.1.3.1）活性的荧光法。该方法适用于软干酪、半硬干酪和硬干酪，条件是模具仅在干酪的表面上而不在内部(例如蓝纹干酪)。对于大型硬干酪，特定的取样条件适用（见条款？7）.用于测定ALP的仪器可以读取上清液中高达7？000？毫单位每升（亩/千克）。

This document specifies a fluorimetric method for the determination of alkaline phosphatase (ALP) (EC 3.1.3.1) activity in cheese.

This method is applicable to soft cheeses, semi-hard and hard cheeses provided that the mould is only on the surface of the cheese and not also in the inner part (e.g. blue veined cheeses). For large hard cheeses, specific conditions of sampling apply (see Clause 7).

The instrument used for the determination of ALP can read activities in the supernatant up to 7 000 milliunits per litre (mU/kg).

标准预览图