摘要
研究了金银忍冬果实色素的提取工艺条件和基本性质。结果表明:金银忍冬果色素的最佳提取工艺条件为80℃的提取温度、45 min的提取时间及1:8的料液比。金银忍冬果色素对自然光、紫外线、高温、VC、H2O2和Na2SO3的耐受性较差,但葡萄糖、蔗糖和柠檬酸对色素溶液几乎无影响;Na+,Ca2+,A13+等金属盐离子对果色素的影响很小;果色素在pH≤3的环境中保持红色色泽,但其红色在中性和碱性环境下被完全破坏。根据这一研究结果,可确定金银忍冬果色素具备作为天然色素使用的基础性能,可作为天然色素资源予以开发利用。
Studied the extraction and basic properties of the Lonicera Maackii fruit pigment. Results show that the optimal extraction conditions are as follows： extraction temperature 80℃, extraction time 45 min and ratio of material to solvent 1：8（g/mL）; and the pigment exhibits a poor stability to sunshine, heat, VC, hydrogen peroxide and sodium sulfite. Glucose, sucrose and citric acid as well as the metal ions of Na＋, Ca2＋, Al3＋ exhibit no negative or little effect on the pigment stability; the pigment preserves red color at pH ≤ 3, and in neutral and alkaline environment the color is completely destroyed. The result indicates that the pigment of Lonicera Maackii fruit has basic properties of the natural pigment and can be used as natural pigment resources to be developed.
出处
《湖南工业大学学报》
2012年第5期15-20,共6页
Journal of Hunan University of Technology
基金
湖南省高校"林产资源化学与林化产品开发"科技创新团队支持计划基金资助项目(湘教通[2010]-212)
湖南省基金项目:研究生科技创新基地基金资助项目(201203A)
关键词
金银忍冬
色素
提取
稳定性
LoniceraMaackii （Rupr.）Maxin
pigment
extraction
stability
