笃斯越橘酰化花青素稳定性分析

摘要

By spectrophotometry,gradient and combination of many series of experiments,the effect of light,temperature,metal ions,oxidizing agent,reducing agent and other factors on the stablity of acylated anthocyanins and anthocyanins of Vaccinium uliginosum were compared and analyzed.The research showed that acylated anthocyanins enhanced light resistance and pigment degradation ability in various environments.Fe2+,Fe3+,and Cu2+ had different degree of adverse effect on anthocyanins,whether acylated or not.In the application process (processing,storage and transportation),anthocyanins should avoid contact with Fe2+,Fe3+,and Cu2+.The results showed that the stability of the acylated anthocyanins was higher than that of the unmodified anthocyanins,which had high application development and research value.%采用分光光度法,通过多梯度、多组合系列试验,对光照、温度、金属离子、氧化剂、还原剂等因素下的笃斯越橘酰化花青素和笃斯越橘花青素的稳定性进行比较分析.研究表明,与未酰化的花青素相比,酰化花青素耐光性提高,各种环境里的抗色素分解能力增加.Fe2+、Fe3+、Cu2+对无论酰化与否的花青素都会产生不同程度的不利影响,在色素应用过程中(加工、保存及运输)应避免与其接触.结果证明,笃斯越橘酰化花青素稳定性优于未经修饰的花青素,有较高的开发应用和研究价值.