摘要
味精,白色颗粒状晶体,与硫酸镁晶体极其相似,肉眼很难辨别。利用微波加热使硫酸镁晶体失去结晶水变成白色粉末,与味精颗粒得以区分。此外,硫酸镁在失去结晶水的同时,其溶于自身结晶水中,而使大部分硫酸镁和少部分味精颗粒聚集在器皿底部,从而得以判断味精中是否有硫酸镁存在。
Monosodium glutamate is white and granular crystal,extremely similar to magnesium sulfate crystal.It＆#39;s difficult for naked eyes to distinguish them.In this paper,magnesium sulfate is distinguished from monosodium glutamate based on that magnesium sulfate loses crystal water and changes into white powder through microwave heating.Moreover,magnesium sulfate dissolves into its own crystal water while losing water,so that a great mass of magnesium sulfate and a small percentage of monosodium glutamate gather together at the bottom of vessel.Thus it is concluded whether there＆#39;s magnesium sulfate in monosodium glutamate or not.
出处
《中国调味品》
CAS
北大核心
2015年第6期32-36,共5页
China Condiment
关键词
微波
味精
鉴别
简便
快速
microwave
monosodium glutamate
identification
simple and convenient
rapid
作者简介
张丽华（1965-），女，辽宁锦州人，教授级高级实验师，主要研究方向：食品贮藏加工及质量安全控制。
