玉米蛋白粉综合利用中黄色素的提取研究

Study on extraction technology of maize yellow pigment in comprehensive utilization of corn gluten meal

玉米蛋白粉是用玉米生产淀粉的副产物,含有丰富的玉米黄色素和玉米醇溶蛋白资源。玉米黄色素是一种油溶性的天然色素,可广泛用于人造奶油、糖果、面条、冷饮和烘焙制品等食品中,同时还具有重要的生理活性功能和较强的抗氧化活性。本文研究了从玉米蛋白粉中提取玉米黄色素的工艺。通过比较不同提取溶剂的提取效果,并结合玉米醇溶蛋白的得率加以考察,确定了无水乙醇为玉米黄色素提取的最适溶剂,所得玉米黄色素的得率及纯度均较高,且在提取时不会造成玉米醇溶蛋白的损失,有利于玉米蛋白粉的综合开发利用。正交试验表明提取温度对提取玉米黄色素的影响较大,其次为料液比,而提取时间的影响最小,最适提取条件为提取温度80℃,提取时间3h,料液比1:12。

Corn gluten meal,the by-product of corn starch,contains abundant yellow pigment and zein.Maize yellow pigment,an oil-soluble nature pigment,can be widely used in food,such as margarine,candy,noodle,soft drinks and bakery,etc.Maize yellow also possesses important physiological effects and has strong antioxidant activity.The processing of extracting maize yellow pigment from corn gluten meal was studied.The results showed that anhydrous ethanol was the optimum extraction solvent,it did not lose any zein durin...