醇溶法提取黑米色素的工艺研究  

Study on the Extraction Technology of Black Rice Pigment by Alcohol

作　　者：郭梅[1] 史云侠[1] 

机构地区：[1]天津农学院食品科学系,天津300384

出　　处：《食品研究与开发》2015年第8期58-60,共3页Food Research and Development

摘　　要：以黑米为原料,利用乙醇为浸提剂,研究了黑米色素的提取工艺,分别考察了料液比、浸提p H、浸提温度和浸提时间各单因素水平对提取效果的影响,并通过正交试验确定了醇溶法提取黑米色素最佳的工艺条件。结果表明,影响黑米色素提取的因素主次顺序为:浸提时间>料液比>浸提温度>浸提p H。最佳提取工艺参数为:用体积分数95%的乙醇浸提,料液比1∶45(g∶m L),浸提p H3.0,浸提温度80℃,浸提时间90 min。The alcohol extraction of black rice pigment was studied. This study choose alcohol as the extract agent. Using single factor and orthogonal experimental method,the effects of ratio of solid-liquid, extraction pH, extraction temperature and extraction time on extraction efficiency were further detected. The results showed that the extraction rate of black rice pigment was mostly influenced by extraction time , followed by ratio of solid-liquid, extraction temperature and extraction pH. The optimum process parameters were alcohol percent 95 % as the extract agent, ratio of solid-liquid 1 ∶ 45 （g ∶ mL）,extraction pH 3.0, extraction temperature 80℃and extraction time 90 min.

关 键 词：黑米色素 乙醇 浸提 

分 类 号：TS264.4[轻工技术与工程—发酵工程]