摘要
目的:研究了不同环境条件对酸模叶蓼果实红色素在可见光区的稳定性的影响。方法:采用pH2的80%乙醇作为提取溶剂,对色素提取液在400～700nm进行紫外扫描,而后分别探讨温度、pH、H2O2、VC、金属离子以及蔗糖对色素在紫外和可见光区的稳定性的影响。结果:该色素的四个吸收峰波长分别为444、475、519、665nm;酸模叶蓼果红色素可耐受一定高温,pH对其影响很大,应在低酸性条件下使用;H2O2可使其褪色,VC对其影响不大;大多数金属离子对其无影响,Fe3+等少数金属离子对色素有影响。
Objective：The effects of different environmental conditions on the stability of the red pigment from Polygonum lapathifolium Lium fruit were studied.Methods：Using pH2 80% ethanol as extracting solvent,and then the pigment solvent was scaned between 400～700nm,at the same time the temperature,pH,H2O2,VC,sugar and metal ions on the stability of pigment were probed.Results：The red pigment had four absorption wavelength and which were 444,475,519,665nm.The red pigment from Polygonum lapathifolium Lium fruit could endure heat.pH had great influence on the pigment.H2O2 could made the red pigment fade,most metal ions had no effect,but Fe2＋,Fe3＋ and a small number of metal ions had impact on the pigment.
出处
《食品工业科技》
CAS
CSCD
北大核心
2011年第5期153-155,共3页
Science and Technology of Food Industry
关键词
酸模叶蓼果实
红色素
环境条件
稳定性
Polygonum lapathifolium Lium fruit
red pigment
environmental conditions
stability
