超声波辅助提取红米色素的工艺研究  

Ultrasonic-assisted Extraction of Red Rice Pigment

作　　者：郑琳[1] 张钟[2] 陈湘[3] 齐明[1] 

机构地区：[1]佛山职业技术学院,广东佛山528000 [2]广东石油化工学院化学与生命科学学院,广东茂名525000 [3]安徽科技学院食品药品学院,安徽凤阳233100

出　　处：《现代食品科技》2011年第3期296-298,共3页Modern Food Science and Technology

摘　　要：研究了红米色素的最大吸收波长,并通过单因素试验确定了以1.5 mol/L HCL与95%乙醇溶液的混合液(体积比为3:17)为提取剂,采用超声波辅助提取红米色素的适宜功率、时间、温度和料液比,然后通过响应面法优化了超声波辅助提取红米色素的最佳工艺条件。结果表明:红米色素的最大吸收波长为535 nm,该色素类型为花色苷类;超声波辅助提取红米色素的最佳工艺条件为:功率144 W,料液比1:31(g/v),温度70℃,时间50 min,此工艺条件下的红米色素的提取率为16.66%。The maximum absorption peak of the pigment was investigated.While through signal factor experiment appropriate extraction power,time,temperature and raw material to water were obtained respectively by ultrasonic technique using mixture of 1.5mol/L HCLand 95% alcohol（the ratio of volume is 3：17） as solvent.Optimum extraction conditions were optimized by response surface methodology（RSM）.The result showed that the maximum absorption peak of the red rice pigment was 535 nm and the pigment was found as anthocyanin compound.The optimum technical parameter was as follows： ultrasonic power 144 W,temperature 70 ℃,time 50 min and raw material to extractant 1：31.Under these conditions the yield of red rice pigments was 16.66%.

关 键 词：红米色素 提取工艺 超声波 响应面法 

分 类 号：TS264.4[轻工技术与工程—发酵工程]