紫番薯原花青素的提取和稳定性研究

摘要

Procyanidins in purple sweet potatoes extracted by ethanol were studied. And the extract was purified with AB-8 macroporous resin. The eluent concentration included 10%, 30%, 50% and 70% of ethanol solution. Four samples were obtained by concentration and freeze drying treatment. Stability of each sample was studied.%采用乙醇提取紫番薯原花青素，运用AB-8大孔树脂进行纯化，洗脱液分别为体积浓度10％、30％、50％和70％的乙醇。洗脱液经浓缩、冷冻干燥制得4种紫番薯原花青素样品，并对每个样品的稳定性进行了研究。