摘要
以湘西产的香桂叶为原料,采用超声-微波协同萃取法对香桂叶油的提取工艺进行了研究。以水为萃取溶剂,对提取次数、微波功率、提取时间、液固比、氯化钠浓度等影响萃取的因素进行了单因素实验。在单因素实验结果的基础上,提取1次,对各因素进行正交实验优化,得出了香桂叶油的萃取优化工艺条件:微波功率75W,提取时间30 min,液固比10(m L/g),氯化钠浓度为4%。与传统的水蒸气蒸馏法相比,超声-微波协同萃取不仅大大缩短了蒸馏时间,而且香桂叶油的提取率从2.411%提高到3.288%。通过GC-MS检测,该工艺下香桂叶油中黄樟油素的含量可高达98.09%。
The extraction technology of Cinnamomu petrophilum leaves essential oil（CPL oil）of Western Hunan was studied. The conditions of ultrasonic-microwave extracting CPL oil were discussed by using the ultrasonic-microwave extraction system ,including microwave power, extraction time, ratio of material and solvent ,the concentration of NaC1 and extraction times. And the optimized conditions of ultrasonic-microwave synergistic extracting CPL oil once were obtained by orthogonal experiments ： microwave power was 75w; extraction time was 30 minutes; ratio of solvent and material was 10 （mL/g） ; the concentration of NaC1 was 4%. Ultrasonic- microwave synergistic extraction was time saving and gave a higher extraction yield （3.288%）of CPL oil, when compared with the conventional water distillation extraction method（2.411%）.Safrole content of the extract was 98.09% by GC-MS.
作者
杨艳红
李湘洲
唐克军
YANG Yan-hong LI Xiang-zhou TANG Ke-jun(College of Materials Science and Engineering, Central South University of Forestry ＆ Technology, Changsha 410004, Hunan, China)
出处
《中南林业科技大学学报》
CAS
CSCD
北大核心
2016年第11期125-128,136,共5页
Journal of Central South University of Forestry & Technology
基金
中南林业科技大学青年基金项目(QJ2010014B)
国家林业公益性行业科研专项(201204811)
关键词
超声-微波协同萃取
香桂叶油
正交实验法
提取率
ultrasonic-microwave synergistic extraction
Cinnamomum petrophilum leaves oil
orthogonal array design
extraction yield
