微生物法测定蔬菜中叶酸含量  

Microbiological Method for the Determination of Folic Acid in Vegetables

作　　者：蒋伟 李白玉 JIANG Wei;LI Baiyu(Hunan Provincial Institute of Product and Goods Quality Inspection,Changsha 410007,China)

机构地区：[1]湖南省产商品质量检验研究院,湖南长沙410007

出　　处：《食品安全导刊》2023年第13期84-86,共3页China Food Safety Magazine

摘　　要：采用微生物法使用鼠李糖乳杆菌测定了某地区25种常见蔬菜的叶酸含量。结果显示,在当地常见蔬菜中菠菜叶酸含量最高(236μg/100 g),西兰花(137μg/100 g)的叶酸含量也较高。其他叶类蔬菜的叶酸含量在45~100μg/100 g,瓜类、豆类和根茎类蔬菜的叶酸含量低于叶类蔬菜。菠菜和大白菜的叶酸在放置一周后仅保留23.0%和42.9%。The folate content of 25 common vegetables in a region was determined by microbiological method using Lactobacillus rhamnosus.The results showed that spinach had the highest folate content(236μg/100 g)among the common local vegetables and broccoli(137μg/100 g)also had higher folate content.The folate content of other leafy vegetables ranged from 45 to 100μg/100 g.Melons,beans and root vegetables had lower folate content than leafy vegetables.Spinach and cabbage retained only 23.0%and 42.9%of their folate after a week of sitting.

关 键 词：鼠李糖乳杆菌 蔬菜 叶酸含量 微生物测定法 

分 类 号：TS255.7[轻工技术与工程—农产品加工及贮藏工程]