微波场协同提取虎杖色素的研究  

STUDIES ON THE MICROWAVE ASSISTED EXTRACTION OF THE NATURAL PIGMENT FROM THE POLYGONUM CUSDIDOTUM STEB.ET ZUCC

作　　者：黎彧[1] 邝守敏[2] 吴川[2] 马宝娟[2] 郑康伟[2] 蔡伟东[2] 

机构地区：[1]中山大学化学与化学工程学院,广州510275 [2]广东轻工职业技术学院轻化系,广州510300

出　　处：《食品研究与开发》2005年第5期48-51,共4页Food Research and Development

摘　　要：研究了微波辅助提取虎杖色素的新工艺并确定了最佳工艺条件:原料为2.0000g的虎杖干粉,提取剂为体积分数75%的乙醇,提取剂用量为1∶60(g∶mL),微波功率为464W,提取时间为300s,提取次数为2次。与溶剂浸提取法和索氏提取法相比,微波提取虎杖色素的每次提取时间分别由24h和2h减小为300s,提取率分别从91.0%和73.5%增加到97.2%。A new method of microwave extraction was used to extract the pigment from Polygonum Cusdidotum Steb.et Zucc. The extraction processes were investigated and the optimal conditions were determined as follows： raw material is 2.0000 g dry powder, extraction agefit is 75 % alcohol solution （quality percentage） , the ratio of raw material to extraction agent is 1：60 （g：mL）,microwave power is 464 W,extraction time is 300 s,extraction times is 2. Compared with solvent or soxhlet extraction, microwave extraction reduces extraction time from 24 h or 2 h to 300 s and increases extraction rate from 91.0 % or 73.5 % to 97.2 % respectively.

关 键 词：虎杖 微波辅助提取 天然色素 色素 场协同 最佳工艺条件 索氏提取法 提取时间 体积分数 微波功率 

分 类 号：TS202.3[轻工技术与工程—食品科学] TQ464.7[轻工技术与工程—食品科学与工程]