摘要
以新引进的美国黑宝石李子皮加工后的皮渣为原料,系统研究了提取溶剂、温度、时间、pH值等因素对提取率和红色素稳定性的影响。结果表明,最佳浸取工艺条件是:pH=2的体积分数50%乙醇,室温下(20～25℃)浸提1.5～2h;红色素对常用的几种食品添加剂较稳定,耐光性较强,有一定的耐热和抗氧化性,但抗还原性较差。
Based on the residue skin of the newly imported American Black Treasure plum after further processing,the factors as solvent,temperature,time pH,etc which affect the extraction rate and stability of haematochrome are systematically analyzed in the paper.The condition for the best extraction technology,as is resulted from this study,is pH=2 at room-temperature with 50% ethanol for 1.5~2 h.The haematochrome is stable to several food additives with strong endurance,heat-durability and oxidation resistance,but poor in anti-reducibility.
出处
《西北农林科技大学学报（自然科学版）》
CSCD
北大核心
2004年第3期97-100,共4页
Journal of Northwest A&F University(Natural Science Edition)
