胭脂虫蜡的提取分离及初步精制  

Extraction and Preliminary Purification of Cochineal Wax

作　　者：郑华[1] 张弘[1] 甘瑾[1] 唐莉英[1] 赵虹[1] 卢艳民[1] 马李一[1] 张忠和[1] 

机构地区：[1]中国林业科学研究院资源昆虫研究所,国家林业局资源昆虫培育与利用重点实验室,云南昆明650224

出　　处：《食品科学》2009年第16期162-165,共4页Food Science

基　　金："十一五"国家科技支撑计划项目(2006BAD06B07)

摘　　要：为提高胭脂虫全虫利用价值,开发昆虫蜡新资源,用几种常见有机溶剂对胭脂虫蜡进行加热回流提取和精制。结果表明,胭脂虫蜡提取宜选择二甲苯或四氯化碳为溶剂,提取率可达2.95%～2.97%;二甲苯提取物经无水乙醇(单级)精制处理,可得到熔点85.0℃、白度80.4%的胭脂虫蜡;四氯化碳提取物经二甲苯-石油醚-无水乙醇(三级)精制处理,可得到熔点84.3℃、白度82.2%的胭脂虫蜡;上述精制产品的熔点和白度同其他常见昆虫蜡精制品接近或一致。For the comprehensive utilization of cochineal and the development of new insect wax resource, several common organic solvents were taken to extract cochineal wax. Xylene and carbon tetrachloride were two efficient solvents for the extraction of cochineal wax with a yield of 2.95% -- 2.97%. A cochineal wax product with 85.0 ℃ melting point and 80.4% whiteness could be obtained from the xylene extract by the single-stage treatment with absolute ethanol, while the three-stage treatment with xylene, petroleum ether and ethanol yielded a product with 84.3 ℃ melting point and 82.2% whiteness. The melting point and the whiteness of the two products both were similar to those of other common insect wax products.

关 键 词：胭脂虫 蜡 提取 分离 精制 

分 类 号：TS202.3[轻工技术与工程—食品科学]