槲皮素-苦荞淀粉复合物制备工艺优化

Optimization of Preparation Process of Quercetin-Tartary Buckwheat Starch Complex

摘要: 以苦荞淀粉为原料,对槲皮素-苦荞淀粉复合物的制备工艺进行优化,并对其冻融稳定性进行了研究。结果表明,制备槲皮素-苦荞淀粉复合物的最佳工艺条件为:预糊化温度70 ℃,料液比1:10 g/mL,槲皮素添加量10.0%,共糊化时间1 h,预糊化时间10 min。在最佳条件下复合率为38.72%±0.91%。在一定范围内,随着槲皮素添加量的增多,复合率逐渐提高,复合物的冻融稳定性逐渐增加。

Abstract: The preparation process of quercetin-Tartary buckwheat starch complex was optimized with Tartary buckwheat starch as experimental material and the freeze-thaw stability of starch gel was evaluated. The results showed that the optimum conditions for the formation of quercetin-Tartary buckwheat starch complex were determined as follows:Pregelatinization temperature 70 ℃,the solid-liquid ratio 1∶10 g/mL,quercetin addition 10.0%,co-gelatinization time 1 h,pregelatinized time 10 min,the best recombination rate was 38.72%±0.91%. The recombination rate increased with quercetin addition increased and the freeze-thaw stability of starches increased correspondingly in a certain range.