摘要
报道了玫瑰茄红色素的初步提取方法 ,以及光照、温度、pH值和金属离子对玫瑰茄红色素的影响 ,发现该色素在 5 35nm和 5 4 6nm处有强吸收峰 ,在pH <3以下耐热性耐光性较好 ,金属阳离子对其影响较大 ,Na+、Ca2 +、Al3+、Fe3+等离子具有增色作用和吸收峰红移现象 .
This paper mainly deals with the way to extract and purify the red pigment in Hibiscus sabdariffa Linna,and the effects of Light,temperature,metal ions and pH value on it. the experimental result shows that is has a stronger absorption peak in the range from 535nm to 546nm.Under the condition of pH<3,it possesses higher stability to light,heat on metal ions and that Na +,Ca 2+ ,Al 3+ and Fe 3+ have an effect on increasing colour and an phenomenum of redness-shifting at absorption peak.
出处
《宁德师专学报（自然科学版）》
2001年第3期201-203,218,共4页
Journal of Ningde Teachers College(Natural Science)
关键词
玫瑰茄红色素
提取
稳定性
影响因素
red pigment of Hibisous sabdariffa Linna
exteaction
stability
affecting factors
