黑米色素提取精制工艺的研究  

Technology for extraction and refinment of black rice pigment

作　　者：于长顺[1] 杨婷婷[1] 马春[1] 孟立[1] 

机构地区：[1]大连轻工业学院化工与材料学院,辽宁大连116034

出　　处：《大连轻工业学院学报》2005年第2期128-131,共4页Journal of Dalian Institute of Light Industry

摘　　要：关于黑米色素开发研究已引起研究者的关注,但有关萃取精制工艺的报道很少。本文介绍了有关的工作。采用酸化水基萃取剂提取黑米中的花色苷,并用大孔吸附树脂进行精制。研究结果表明,影响黑米色素提取率的主要因素是温度和pH值。通过正交实验确定最佳提取条件为:温度,40～50℃;pH,3.0;时间,90min。大孔树脂精制可使黑米色素的花色苷含量达到23.7%,色价E1%1cm(535nm)达到140。Research on extracting pigment from black rice has attracted interest, but its technology process is scarcely reported. This paper presents our work in this respect. Anacidic water-based solvent is used to extract anthocyanin from black rice, and macro-porous adsorbing resin to refine the pigment. Investigation reveals that temperature and pH are the primary influencing factors. Orthogonal experiments determine the following optimum conditions: temperature, 40-50?℃; pH,3.0; time, 90?min. Refining by the macro-porous adsorbing resin, we achieve 23.7% of anthocyanin in content and 140 in pigment purity (E^(1%)_(1cm)((535?nm)).)

关 键 词：精制工艺 色素提取 黑米色素 大孔吸附树脂 开发研究 研究结果 提取条件 实验确定 大孔树脂 花色苷 萃取剂 pH值 提取率 温度 时问 

分 类 号：TS272.4[农业科学—茶叶生产加工] TS264.4[轻工技术与工程—农产品加工及贮藏工程]