QB/T 2491-2004
代替QB/T 2491-2000
低聚异麦芽糖
Isomaltooligosaccharide
2004-12-14发布
2005-06-01实施
目 次
前言 ·····················································································1
弓1言 ··················································································1
I 范围 ··········································································································· 1
2 规范性弓}用文件 ·..................................................................................................... I
3 术语和定义、符号 ·····························································································1
4 产品分类 ·········································································································2
5 要求 .................................................................................................................... 2
6 试验方法 .............................................................................................................-3
7 检验规则 ·............................................................................................................. 5
8 标志、包装、运输、贮存....................................................................................... 6
附录 A(资料性附录) IMO含量 (高效液相色谱双柱法)···································7
本标准是对QB/T 2491-2000《低聚异麦芽糖》的修订。
 本标准与QB/T 2491-2000相比主要变化如下:
 — 删除了原指标中的 “糊精含量”;
 — 增加了“IMO-90型”产品的定义及指标:
 — 删除了测定IMO含量中的薄层色谱法;
 — 测定IMO含量时，以液相色谱单柱法为仲裁法;
 — 删除了原附录 A“葡萄糖转昔酶活力的定义与测定，’:
 — 将测定 IMO含量的液相色谱双柱法放入附录A中。
 本标准试验方法中的感官检验、千物质 (固形物)、pH、透射比的测定，采用 QB/T 2319-1997《液体葡萄糖》中相应的分析方法;水分、溶解度的测定，采用 QB/T 2320-1997《麦芽糊精》中相应的分析方法。
 本标准的附录A为资料性附录。
 本标准由中国轻工业联合会提出。
 本标准由全国食品发酵标准化中心归口。