文献类型：期刊文献

中文题名：减压法提取长枣枣皮中的天然色素

英文题名：Optimization of Red Pigments Extraction from jujube Peel(Ziziphus jujube Mill.) Under Reduced Pressure

作者：游凤[1] 黄立新[1,2] 张彩虹[1] 谢普军[1] 张耀雷[1]

第一作者：游凤

机构：[1]中国林业科学研究院林产化学工业研究所,生物质化学利用国家工程实验室,国家林业局林产化学工程重点开放性实验室,江苏省生物质能源与材料重点实验室;[2]中国林业科学院林业新技术研究所

年份：2012

卷号：38

期号：12

起止页码：169-174

中文期刊名：食品与发酵工业

外文期刊名：Food and Fermentation Industries

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：林业局948项目:林特产品超声波雾化干燥技术引进(2012-4-12);国家863项目:食品高效节能干燥装备开发及新技术研究(2011AA100802-9)

语种：中文

中文关键词：红枣;天然色素;减压;提取

外文关键词：Ziziphus jujube, natural red dye/pigment, reduced pressure assisted extraction

分类号：TS255.44

摘要：对减压法提取陕西长枣枣皮红色素进行了研究,通过单因素实验考察了碱液浓度、液料比、真空度、提取温度和提取时间对提取得率的影响,结合正交实验结果得出:在碱液质量分数1.6%,液料比40 mL∶1g,90℃下,真空度0.05 MPa,提取时间50 min时,色素提取得率最大,可达8.226 mg/g。减压提取、常压提取和超声提取三种工艺的对比结果表明减压提取所得红枣色素的色价最高,可达21.70,是常压提取的2.78倍(21.27/7.657),超声的1.84倍(21.27/11.524)。
The extraction conditions of red pigments under reduced pressure from jujube peel were investigated and further optimized. The effects of the solvent concentration, liquid/solid ratio, extraction time, and extraction temperature and extraction pressure on the pigments＇ yield were investigated by Single-Factor experiment. The results showed that the conditions for maximum pigment yields per gram jujube peel were ： 40ml aqueous solvent with 1.6% alkaline in 90℃ water bath for 50 minutes assisted by reduced pressure at 0. 005 MPa. The comparison among reduced pressure, ordinary pressure and ultrasonic-assisted extraction showed that extraction under reduced pressure gained the highest color value of 21.70.