ISO 11816-1:2024 乳和乳制品 碱性磷酸酶活性的测定 第1部分：乳和乳基饮料的荧光分析法

标准编号：ISO 11816-1:2024

中文名称：乳和乳制品 碱性磷酸酶活性的测定 第1部分：乳和乳基饮料的荧光分析法

英文名称：Milk and milk products — Determination of alkaline phosphatase activity — Part 1: Fluorimetric method for milk and milk-based drinks

发布日期：2024-01

标准范围

本文件规定了测定原料和热处理全脂牛奶、半脱脂牛奶、脱脂牛奶和调味牛奶中碱性磷酸酶（ALP）（EC 3.1.3.1）活性的荧光法。该方法适用于来自奶牛、绵羊和山羊的奶和奶基饮料。也适用于复溶后的奶粉。用于测定ALP的仪器可以读取高达7？000？毫单位每升（mU/l）。如果活动高于7？000？μ/l，用不含ALP的牛奶稀释，以获得不高于7？000？μ/l。

This document specifies a fluorimetric method for the determination of alkaline phosphatase (ALP) (EC 3.1.3.1) activity in raw and heat-treated whole milk, semi-skimmed milk, skimmed milk and flavoured milks.

This method is applicable to milk and milk-based drinks from cows, sheep and goats. It is also applicable to milk powder after reconstitution.

The instrument used for the determination of ALP can read activities up to 7 000 milliunits per litre (mU/l). If the activity is higher than 7 000 mU/l, it is diluted with ALP-free milk so as to obtain a measurement not higher than 7 000 mU/l.

标准预览图