摘要
研究pH值、温度、光照、金属离子、抗坏血酸、氧化剂和还原剂等因素对紫甘薯色素稳定性的影响,结果表明:色素在酸性条件下较稳定,对高温耐受性弱,光照、Fe2+、Fe3+、Mg2+能降低其稳定性,低浓度的Al3+具有增色作用,对氧化剂和还原剂较敏感。
The effects of pH value, temperature, illumination intensity, metal ion, ascorbic acid, oxidant and reductant on the stability of purple sweet potato pigment were investigated. The results show that pigment is more stable in acidic conditions, high temperature resistance is weak, metal cation such as Fe2＋、Fe3＋、Mg2＋ can reduce the stability of the pigment, low con-centration Al3＋ has a considerable hyperchromism effect and the pigment is sensitive to the oxidizing and reducing agents.
出处
《宁夏农林科技》
2015年第3期12-14,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
国家级大学生创新创业训练计划项目(201311407024)
关键词
紫甘薯
色素
稳定性
Purple sweet potato
Pigment
Stability
