超临界CO_2萃取玉米黄色素的研究  

Study on Technology of Supercritical CO_2 Extraction of Corn-yellow Pigment

作　　者：李晶[1] 

机构地区：[1]吉林工程技术师范学院生物与食品工程系,吉林长春130052

出　　处：《食品科学》2004年第9期125-128,共4页Food Science

基　　金：吉林省教育厅资助项目(吉教合字2002第0271号)

摘　　要：玉米蛋白粉是玉米淀粉工厂的一种副产品。本文系统研究了超临界流体技术(SFE)从玉米蛋白粉中提取玉米黄色素的温度、压力、时间、夹带剂等工艺条件;该提取法比常规的化学溶剂提取法的得率高2.2倍。同时还探讨了玉米黄色素的稳定性,结果表明它需要低温、避光保存。Corn gluten meal(CGM) was a by-product in a corn starch plant. Corn-yellow pigment could be extracted from CGMby the supercritical fluid extraction(SFE). The paper syste matically studied the influence of temperature、pressure、time、cosolvent solution on the extraction .Compared to the traditional solvent extraction a higher efficiency was obtained in the SFE.The yield of Corn-yellow pigment by SFE was 2.2 times as much as the yield by solvent extraction. The stability of Corn-yellowpigment was also studied, it was sensitive to sunlight and should be preserved in dark at low temperature.

关 键 词：超临界CO2萃取 玉米黄色素 玉米蛋白粉 提取 稳定性 

分 类 号：TS202.3[轻工技术与工程—食品科学]