GB/T 22224-2008 in English

《GB/T 22224-2008食品中膳食纤维的测定 酶重量法和酶重量法-液相色谱法》由TC64（全国食品工业标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准第一法规定了酶-重量法测定食品中总、可溶性和不溶性膳食纤维的条件和详细分析步骤。本标准第一法适用于谷类、蔬菜和水果及其制品中总的、可溶性和不溶性膳食纤维的测定，但不适用于含低分子量的抗性麦芽糊精、寡果糖、低聚半乳糖、多聚葡萄糖和抗性淀粉等食品的膳食纤维的测定。本标准第二法规定了酶重量法-液相色谱法测定食品中含低分子量抗性麦芽糊精的总膳食纤维的条件和详细分析步骤。本标准第二法适用于含有抗性麦芽糊精的糖果蜜饯（含巧克力及制品）、粮食及制品、糕点、饮料、乳制品、肉制品和保健食品等食品中总膳食纤维的测定。本标准的第二法为“含抗性麦芽糊精食品中总膳食纤维的测定　酶重量法�惨合嗌�谱法”，修改采用了国际分析化学家协会方法ＡＯＡＣ２００１．０３（２００４年第１８版）《含有抗性麦芽糊精食物中的总膳食纤维的酶�仓亓糠ê鸵合嗌�谱法测定》（Ｔｏｔａｌｄｉｅｔａｒｙｆｉｂｅｒｉｎｆｏｏｄｓｃｏｎｔａｉｎｉｎｇｒｅｓｉｓｔａｎｔｍａｌｔｏｄｅｘｔｒｉｎｅｎｚｙ�玻恚幔簦椋悛玻纾颍幔觯椋恚澹簦颍椋悖恚澹簦瑁铮洌幔睿洌欤椋瘢酰椋洌悖瑁颍铮恚幔簦铮纾颍幔穑瑁�ｄｅｔｅｒｍｉｎａｔｉｏｎ），主要修改了酶解用缓冲液，降低了酶用量，并简化了用于液相色谱法测定的试样的处理步骤，可测定食品中含低分子质量抗性麦芽糊精的总膳食纤维。

Scope

The first method of this standard specifies the conditions and detailed analysis steps for the determination of total, soluble and insoluble dietary fiber in food by the enzymatic-gravimetric method. The first method of this standard is suitable for the determination of total, soluble and insoluble dietary fiber in cereals, vegetables and fruits and their products, but not for resistant maltodextrin, fructooligosaccharides, galactooligosaccharides, Determination of dietary fiber in foods such as polydextrose and resistant starch. The second method of this standard specifies the conditions and detailed analysis steps for the determination of total dietary fiber containing low molecular weight resistant maltodextrin in foods by enzymatic gravimetric method-liquid chromatography. The second method of this standard is applicable to the determination of total dietary fiber in foods such as candies and preserves (including chocolate and its products), grains and products, cakes, beverages, dairy products, meat products and health foods containing resistant maltodextrin.