红穗醋栗色素热稳定性的研究

研究了红穗醋栗色素的热稳定性。结果表明，在６０℃以下加热，对色素无任何影响，超过６０℃，色素将发生降解，且遵从一级反应动力学规律。建立了８０℃、１００℃下的回归方程，求出了这两个温度下的半衰期和速度常数，以及该色素降解反应的活化能，同时得出了色素降解的速度常数和温度定量关系的方程，从而为红穗醋栗色素开发和应用提供理论基础。

Study on the thermal stablity of red currant pigment

The thermal stability of red currant pigment was studied in this paper. The results showed: the temperature below 60℃ had no any effects on the stability of red currant pig- ment, whereas over 60℃, temperature had a definite effect of degradation, and the thermal degradation of the pigment fellow well to first order reaction kinetics. In this paper, regres- sion equations at 80℃ and 100℃ were set up respectively, at meantime the half life and the rate constant and the reaction energy of the thermal degradation were calculated, besides the equation with standing for effect degradation were calculated, besides the equation with standing for effect of the temperature on the rate constant of the thermal degradation of the pigment was obtained. All ablove this provided scientific evidence for exploiting and utilizing of red currant pigment.