超临界CO_2萃取烟叶中尼古丁工艺探索  

Investigation on extraction technology of nicotine from tobacco leaves with SC-CO_2

作　　者：张文成[1] 谢慧明[1] 张文婷[1] 

机构地区：[1]合肥工业大学农产品生物化工教育部工程研究中心,安徽合肥230009

出　　处：《合肥工业大学学报（自然科学版）》2008年第7期1034-1036,共3页Journal of Hefei University of Technology：Natural Science

基　　金：教育部科技创新工程重大项目培育基金资助项目(704027)

摘　　要：文章主要探索加工低尼古丁香烟原料的工艺。采用了超临界CO2萃取法考察了萃取压力、夹带剂添加量、时间及温度对烟叶中尼古丁含量的影响,并进行了正交优化试验;研究结果表明,压力是影响萃取的最显著因素,其次是夹带剂、时间、温度,最优条件为A3B2C3D2,即萃取压力21 MPa、添加水量为20%、时间120min、温度55℃时,每克烟叶中尼古丁降低到0.41 mg。In this paper, the technique of supercritical（SC） COz extraction is chosen to extract the nicotine from tobacco leaves. The impacts of extraction pressure, entrainer-water, extraction time and extraction temperature on the contents of nicotine in tobacco leaves are investigated. The orthogonal experiment result shows that the best technologic conditions were as follows： the extraction pressure was about 21 MPa,the entrainer-water was 20% , the extraction time was 120 min and the extraction temperature was 55 ℃. The content of nicotine in tobacco leaves was dccreased to 0.41mg/g.

关 键 词：超临界CO2萃取 尼古丁 萃取工艺 萃取压力 

分 类 号：S337[农业科学—作物遗传育种]