食品工业科技2012，Vol.33Issue(5)：299-302,305,5.
桃金娘色素稳定性及初步分离研究
Study on pigment stability and separation from Rhodomyrtus tomentosa
摘要
Abstract
In order to provide theory and experimental data for the popularization and application of Rhodomyrtus tomentosa pigment（RTP）,the stability and separation of RTP was investigated.The results indicated that,this pigment was easily dissolved in acidic aqueous solution or acid alcohol solvent,insoluble or hardly soluble in non-polar solvents.In the buffer solution,RTP was stable when the solution pH value was lower than 4.0,the maximum absorption wavelength of RTP was 516nm.It was found that the red pigment resistant to common food additives,such as carbohydrate,organic acid,sodium benzoate,potassium sorbate.The pigment was poor resistant to light,heat,reduct,oxide.It was stable to metal ions such as：Zn2＋,K＋,Al3＋,Na＋,Ca2＋,which could add its color or could not badly affect it while Mg2＋,Fe3＋ could change its color.HPLC showed that there were four main pigments in RTP.关键词
桃金娘/色素/稳定性/分离Key words
Rhodomyrtus tomentosa/pigment/stability/separation分类
轻工纺织引用本文复制引用
张少敏,崔春,赵谋明,陈文芬..桃金娘色素稳定性及初步分离研究[J].食品工业科技,2012,33(5):299-302,305,5.基金项目
国家863计划重点项目 （）
广东省教育部产学研结合项目 （）
