【摘要】 对蓝靛果红色素的理化性质做较为详尽的研究。结果表明,该色素为花青素类色素,水溶性好,颜色随pH值变化而变化,pH值小于3时比较稳定,最大吸收波长为520nm;在酸性条件下色素的水溶液对金属离子Na+、Mg2+表现出较好的稳定性,尤其是Mg2+的加入具有增色效果;葡萄糖和食用酸的存在使色素稳定性增强;但对光、热、氧化剂及VC的稳定性差。更多还原

【Abstract】 The physiochemical properties of the pigment from bluehoneysuckle were studied.The results indicated that the pigment from bluhoneysuckle is anthocyanin composition and has good water solubility , the pigment’s colour changes under different pH value and has a relative stability when pH <3 ,the maximum absorption wavelength of this pigment is 528 nm when the pH value is 3. The pigment is stable to metal ions such as Na+ and Mg2+ and maintain stable under protection of Mg2+, glucose and edible acid,but sensitive to light, heat, oxidant and VC.更多还原