动态-微波法提取黑胡椒油树脂的中试研究  

Study on dynamic-microwave extraction of black pepper oleoresin in pilot experiment scale

作　　者：周叶燕[1] 樊亚鸣[1] 高绍中[1] 陈永亨[1] 

机构地区：[1]广州大学化学化工学院,广州510006

出　　处：《食品科技》2009年第11期175-179,共5页Food Science and Technology

基　　金：国家星火计划项目(2005EA780029);广东省科技计划项目(2006B20901006);广州市科技计划项目(20050916)

摘　　要：在静态-微波提取的小试单因子试验的基础上,设计、调试中试设备,从而为动态-微波提取黑胡椒油树脂构建了操作平台。本文主要运用L9(34)正交试验设计,在中试规模上研究了微波功率、物料流量、总固液比和提取次数4个因素对提取率的影响,并通过胡椒碱含量的测定,获得最佳提取工艺参数。结果表明,以95%的食用级乙醇为溶剂,最佳中试工艺参数为:微波功率2400W,流量52L/h,总固液比1∶7,提取次数3。由此获得的黑胡椒油树脂的提取率达12.69%,其中胡椒碱含量为原料重量的4.780%。本文提出微波有效时间与微波有效照射的概念,解释了从小试放大到中试的实验中产生的问题。Based on the static state-microwave extraction（SWE） in a small test by single factor tests, the dynamic-microwave extraction （DME） equipment was designed to extract black pepper oleoresin on pilot experiment scale. In the pilot experiment, the 4 parameters were chosen： microwave power, material flux, total solidliquid ratio and extraction times, the orthogonal experiments L9（3^4） were carried on to choose the best technics parameters and the results are as follows： 95% ethanol was as solvent, microwave power 2400 W, material flux 52 L/h, total solid-liquid ratio 1：7 and extraction times 3. Under the above condition, the extraction rate of black pepper oleoresin is 12.69% and the piperine content for the raw material is 4.780%. In the paper, the 2 concepts of microwave effective time and microwave effective irradiation were put forward to explain the problems came from the transform process between SWE in the small test and DME in the pilot experiment.

关 键 词：黑胡椒油树脂 动态-微波法 微波有效时间 微波有效照射 

分 类 号：TS202.3[轻工技术与工程—食品科学]