橙汁饮料中维生素C的测定  

Determination of ascorbic acid in orange juice

作　　者：田兴彩[1] 

机构地区：[1]青海师范大学化学系,青海西宁810008

出　　处：《青海大学学报（自然科学版）》2005年第5期70-71,共2页Journal of Qinghai University(Natural Science)

摘　　要：采用直接碘量法测定了三种橙汁饮料中抗坏血酸的含量。结果表明,橙汁饮料在碘量瓶中存放0.1 h至24 h,Vc含量最高,36 h后,VC含量明显下降。The content of ascorbic acid in several kind of orange juice was determined by idometry, it was found that the content of ascorbic acid has no obvious variation after 36 hours reservation in iodine flask.

关 键 词：橙汁饮料 维生素C 碘量法 

分 类 号：R151.2[医药卫生—营养与食品卫生学]