ISO 7466:1986 水果、蔬菜制品.5-羟甲基糖醛含量的测定

标准编号：ISO 7466:1986

中文名称：水果、蔬菜制品.5-羟甲基糖醛含量的测定

英文名称：Fruit and vegetable products — Determination of 5-hydroxymethylfurfural (5-HMF) content

发布日期：1986-09

标准范围

该方法有助于制备供试品溶液，方法是向供试品中加水，如果产品每升含有10 mg以上的游离二氧化硫，则添加乙醛，然后向供试品溶液的等分溶液中添加对甲苯胺酮和巴比妥酸溶液，从而通过与存在的5-羟甲基糠醛反应形成红色，以及550nm波长下的光谱测量。

The method comsists in preparing of a test solution by adding water to test portion, in the case of products containing more than 10 mg of free sulphur dioxide per litre, adding of acetaldhyde, then adding of p-toluidine and barbituric acid solution to an aliquot potion of the test solution, thus forming a red coloration by reaction with 5-hydroxymethylfurfural present, and spectrometric measuring at a wavelenght of 550nm.

标准预览图