Cereals, cereals-based products and animal feeding stuffs - Determination of crude fat and total fat content by the Randall extraction method (ISO 11085:2015)
谷物 谷物制品和动物饲料 - 通过Randall提取法测定粗脂肪和总脂肪含量(ISO 11085:2015)
发布日期:
2015-09-16
实施日期:
2015-09-16
ISO 11085:2015规定了谷物,谷物制品和动物饲料中脂肪含量的测定方法。这些程序不适用于油籽和油质水果。
选择使用的程序取决于所分析材料的性质和组成以及进行分析的原因。
程序A是用于确定适用于所有材料的直接可提取粗脂肪的方法,但不包括在程序B范围内的那些。
方法B是一种用于测定总脂肪的方法,适用于油和脂肪不能在没有预先水解的情况下从其中完全提取的所有材料。
注意大多数谷物,以及动物来源的饲料,酵母,马铃薯蛋白,复合饲料与乳制品,谷蛋白和经过诸如挤出,剥落和加热等过程的产品在程序B测试时产生显着更高的总脂肪含量比程序A.见附件B.
ISO 11085:2015 specifies procedures for the determination of the fat content of cereals, cereal-based products, and animal feeding stuffs. These procedures are not applicable to oilseeds and oleaginous fruits.
The choice of procedure to be used depends on the nature and composition of the material analysed and the reason for carrying out the analysis.
Procedure A is a method for the determination of directly extractable crude fats, applicable to all materials, except those included within the scope of procedure B.
Procedure B is a method for the determination of total fats, applicable to all materials from which the oils and fats cannot be completely extracted without prior hydrolysis.
NOTE Most cereals, as well as feeds of animal origin, yeasts, potato protein, compound feeds with milk products, glutens, and products subjected to processes such as extrusion, flaking, and heating, yield significantly higher total fat contents when tested by procedure B than by procedure A. See Annex B.