The Open Materials Science Journal

2011, 5 : 93-99
Published online 2011 May 2. DOI: 10.2174/1874088X01105010093
Publisher ID: TOMSJ-5-93

Study on New Extraction Technology and Chemical Composition of Litsea Cubeba Essential Oil

Guoen Yang , Guiwu Wang , Xiangzhou Li and Min Zhang
College of Material Science and Engineering, Central South University of Forestry and Technology, Changsha 410004, China.

ABSTRACT

Evaluated with the yield of litsea cubeba essential oil, water extraction technology of essential oil from the seed of Litsea Cubeba (Lour.) Pers. assisted by microwave and ultrasonic is studied for the first time in this paper. The optimal water extraction technology of litsea cubeba essential oil assisted by pure microwave is as follows: extracting time 40 minutes, microwave power 650 W, solid-liquid ratio 1:4 (g/ml). Average yield of litsea cubeba essential oil is up to 10.287% (g/g) under the above optimal technology. The optimal water extraction technology of litsea cubeba essential oil assisted by microwave together with ultrasonic is as follows: extracting time 8 minutes, microwave power 600 W, solidliquid ratio 1:7 (g/ml), extracting temperature 85°C. Average yield of litsea cubeba essential oil is up to 14.188% under the above optimal technology. Microwave and ultrasonic can effectively enhance the extraction process of litsea cubeba essential oil......