HEAT-STABILITY OF SUNFLOWER-HULL ANTHOCYANIN PIGMENT

被引:21
作者
MOK, C [1 ]
HETTIARACHCHY, NS [1 ]
机构
[1] N DAKOTA STATE UNIV,DEPT CEREAL SCI & FOOD TECHNOL,FARGO,ND 58105
关键词
D O I
10.1111/j.1365-2621.1991.tb05322.x
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Anthocyanin pigment was extracted from hulls of a sunflower geno-type, Neaagra de Cluj, using aqueous SO2 solutions of varying concentrations. Thermal stability of the pigment was studied between 65-95-degrees-C, and pH 1.0-5.0. Thermal degradation of the pigment followed first order kinetics. Calculated activation energy was 23.1 +/- 2.2 kcal/mole. Extraction of hulls with 1000 ppm SO2 solution gave highest anthocyanin content and best thermal stability. The pigment was most stable at pH 3.0.
引用
收藏
页码:553 / 555
页数:3
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