对木莓(Rubus swinhoei Hance)果实中提取的红色素理化性质进行了探讨, 并就光、温度、pH 值、氧化还原介质、7 种金属离子、葡萄糖、蔗糖和苯甲酸钠等对其稳定性的影响进行了研究。 结果表明, 木莓鲜果中总花色苷含量高, 属水溶性花色苷类。 该色素对热的耐受性较好, 但耐氧化还原性和耐 Vc 较差;7 种金属离子中 Na ^+_、Mg²⁺、Al3 +和较高浓度Mn²⁺(≥5.0 mmol/ L)对该色素的稳定性较好, 并有不同程度的护色效果, Zn²⁺对其稳定性较好, 而 Fe³⁺和 Cu²⁺对其稳定性有明显的影响或破坏作用;葡萄糖、蔗糖和苯甲酸钠无不良影响。

The red pigment was extracted from the fruit of Rubus swinhoei Hance , and its physical and
chemical properties were identified .The effects of light , temperature , pH value , oxide-reducing medium , 7 kinds of metallic ions , glucose , sucrose and C6H5COONa on its stability were determined .The results showed that the pigment belongs to water-soluble anthocyanins with high content .It has good resistance to heat but a little to oxide reductant and Vc .Na⁺ , Mg²⁺ , Al³⁺ and Mn²⁺ (≥5 .0 mmol/L)have better effects on the stability of the red pigment , and showed a certain colour maintenance , Zn²⁺ has a good effect on its stability , while Fe3 + and Cu2+ show the decreasing appearance significantly .Glucose , sucrose and C6H5COONa have not harm .