紫肉甘薯中花青素在不同环境条件下稳定性的研究

Stability in Different Conditions of Anthocyanins from Purple Sweet Potato

研究了紫肉甘薯中的红色素———花色苷在不同环境条件下的稳定性。结果表明 :该色素在 pH 3以下较稳定 ,耐光性和耐热性好 ,色素粗提物中的糖、酸。

This paper reports the stability of anthocyanins from a purple sweet potato.The results showed that the pigments are stable under pH 3 and display a remarkable thermal and light stability. The experiments also indicated that the crude pigments are more stable than the pure pigments due to intermolecular copigmentation.