Vitamin C in frozen, fresh squeezed, unpasteurized, polyethylene-bottled orange juice: a storage study

被引:147
|
作者
Lee, HS [1 ]
Coates, GA [1 ]
机构
[1] Florida Dept Citrus, Ctr Citrus Res & Educ, Lake Alfred, FL 33850 USA
关键词
frozen orange juice; daily value; vitamin C; shelf life;
D O I
10.1016/S0308-8146(98)00180-0
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
A storage study of frozen, fresh squeezed, unpasteurized, polyethylene-bottled orange juice was conducted to determine vitamin C loss on a monthly basis over a period of 24 months. Vitamin C content declined from an initial value of 40.6 mg/100 ml to 32.8 mg/100 ml in the final analysis for a loss of 19.2% over the storage period. A regression analysis showed a decrease of about 0.34 mg/100 mi of the Vitamin C per month at this condition. The estimated shelf-life of this juice to meet the label claim of vitamin C of 130% DV is about 22 months at -23 degrees C. (C) 1999 Elsevier Science Ltd. All. rights reserved.
引用
收藏
页码:165 / 168
页数:4
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