二次通用旋转设计优化紫玉米芯色素提取工艺  

Optimization of the Extraction Technique of Pigment from Purple Corn Cob by Quadratic General Rotary Design

作　　者：熊建功[1] 邵承斌[1] 曹霞霞[1] 李宁[1] 陈盛明[1] 

机构地区：[1]重庆工商大学环境与生物工程学院,重庆400067

出　　处：《重庆工商大学学报（自然科学版）》2011年第6期614-621,共8页Journal of Chongqing Technology and Business University:Natural Science Edition

基　　金：重庆市科技攻关项目(CSTC;2009AC1065)

摘　　要：以一种紫玉米芯为原料,在单因素试验的基础上,以得率为指标,采用四因素二次通用旋转设计方法,对影响紫玉米芯色素提取的工艺条件进行了优化;结果表明:紫玉米芯色素的优化提取工艺条件为浸提温度40℃、液固比60∶1、乙醇体积分数60%、粒径80目、提取时间为3 h;在此工艺条件下紫玉米芯色素粗品得率为6.88%,其产品色价达到14。Quadratic general rotary design of tetra-factor is employed to optimize the extraction of pigment from corn cob on the basis of mono-factor tests with a purple corn cob as raw materials in order to obtain good yield. The results showed that the yield of primary product of the purple corn cob reached availably 6.88% under the condition of 40 ℃ leaching temperature, 60：1 ratio of liquid-to-solid, 60% ethanol volume fraction, 80 mesh particle diameter, and 3 h extraction time. Furthermore, the color value reached 14.

关 键 词：二次通用旋转设计 紫玉米芯色素 提取 优化 

分 类 号：O584[理学—物理]