BS 5766-19-2000 动物饲料的分析方法.淀粉含量的测定.旋光测定法

标准号：BS 5766-19-2000
中文标准名称：动物饲料的分析方法.淀粉含量的测定.旋光测定法
英文标准名称：Methods for analysis of animal feeding stuffs. Determination of starch content. Polarimetric method
标准类型：B46
发布日期：2000/4/15 12:00:00
实施日期：2000/4/15 12:00:00
中国标准分类号：B46
国际标准分类号：65.120
适用范围：This International Standard specifies a method for the polarimetric determination of the starch content of animal feeding stuffs and raw materials for animal feeding stuffs. The method is not applicable to products which, besides starch, contain other substances which are optically active during the analysis and do not dissolve in 40 % ethanol. Examples of these products are potato pulp, beet chips, beet leaves, beet tops, yeast, soya products, lupine and products rich in inulin (e.g. chicory roots and Jerusalem artichokes). In these cases an enzymatic determination of the starch content may be used. This method is not applicable for the quantification of starch with an amylose content exceeding 40 % (e.g. high amylose maize starch like Hylon VII). CAUTION —Depending on the intensity of the heat/moisture treatment the product has been subjected to, too low a starch content may be determined.