摘要
以水为溶剂从油葵籽皮中提取紫红色素,并用721–3型分光光度计对该色素在不同温度、pH值、光照及不同介质条件下的稳定性进行了检测。结果表明:此色素是水溶性色素,在酸性、中性及弱碱性条件下稳定性较好。但光照、氧化剂、还原剂、强碱条件及一些金属离子对其稳定性有一定的影响。
The stability of purple-red pigments, which were extracted from the seed skin of oil-sunflower, was detected under different temperature, pH, sunlight and mediaeval conditions. The results show that ①the pigment can dissolve in water; ②the pigment could be stable under acidity, neutrals and weak base conditions. ③ Sunlight, oxidizing agent, reducing agent, some metallicion and strong base conditions could obviously effect the stability of the pigment.
出处
《甘肃农业大学学报》
CAS
CSCD
2002年第4期466-470,共5页
Journal of Gansu Agricultural University
