SORPTION ISOTHERMS AND LIGHT STABILITIES OF ALUMINUM LAKED RIBOFLAVIN 5'-PHOSPHATE

被引：2
|
作者：
HUANG, AS
BYERLY, DS
机构：
[1] Dept of Food Science & Human Nutrition, Univ. of Hawaii-Manoa, Honolulu, Hawaii
来源：
JOURNAL OF FOOD SCIENCE | 1992年 / 57卷 / 01期
关键词：
VITAMIN-B2; RIBOFLAVIN; ALUMINUM LAKING; SORPTION ISOTHERMS; COLORANTS; ALUMINUM OXIDE;
D O I：
10.1111/j.1365-2621.1992.tb05465.x
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
Aluminum oxide was used to insolubilize (i.e. to take) riboflavin 5'-phosphate (FMN) to improve the light stability of vitamin B2. HPLC was used to determine adsorption percentage and light stabilities of laked FMN. The adsorption of FMN on aluminum oxide was very effective. An FMN content of 55% in lake was achievable, with adsorption of 91%. The adsorption isotherm was of the Langmuir class, and differed from the desorption isotherm. The stabilities of laked FMN at different light intensities and a(w) values were significantly (p = 0.05) higher than those of free FMN.
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页码：245 / 248
页数：4
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