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从地 (MelastomadodecandrumLour)果实中提取出天然红色素 ,并对其理化性质进行了研究 .结果表明 ,该色素为花青素类色素 ,对光、热的耐受性较好 ;耐氧化性、还原性及维生素C较差 ;受试的五种金属离子Fe3 + ,Cu2 + ,Mn2 + ,Mg2 + ,Zn2 + 对色素的稳定性影响不大 ;食盐、蔗糖和苯甲酸钠亦无显著影响 .该色素可作为新型天然食用色素加以开发利用 .图 2表 10参 5
The natural red pigment was extracted from the fruit of Melastomadodecandrum Lour and the physicochemical properties of the pigment were studied.The results showed that the pigment is anthocyanin pigment with better tolerance to light and heat, Reducing agent and vitamin C. The five metal ions Fe3 +, Cu2 +, Mn2 +, Mg2 + and Zn2 + had little effect on the stability of the pigment, nor did salt, sucrose or sodium benzoate. Pigments can be used as a new natural food coloring to develop and use