红甘蔗皮红色素的提取及稳定性研究

Study on extracting and stability of red pigment from the peel of red sugarcane

研究了红甘蔗皮红色素的提取工艺和基本性质。结果表明:红甘蔗皮红色素溶于乙醇溶液、水;难溶于苯等有机溶剂。对有机酸、碳水化合物稳定;金属离子对其有一定影响;但对光、热不稳定;pH值对其稳定性影响很大,酸性下稳定;Na2 S2 O3 、NaClO、Fe3 + 和Al3 + 对此色素影响明显。

Extracting and stability of red pigment from sugarcane was inwestigated.Experiment results showed that red pigment can dissolve in alcohol,water,but can not dissolve in benzenes.It was stable in organic acid and carbohydrate,but not stable under light,heat,Na_2S_2O_3,NaClO,Fe 3+ ,and Al 3+ envirement.