FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (8): 42-46.doi: 10.7506/spkx1002-6630-200908005

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Study on Microwave-assisted Hydrodistillation Extraction and Solvent-free Microwave Extraction of Essential Oil from Cumin (Cuminum cyminum L.) Seed

YANG Yan1，WU Su-ling2，ZHANG Wei-ming2,*，SUN Xiao-ming2，ZHANG Feng-lun2   

  1. (1. Nanjing Agricultural University, Nanjing 210095, China；
    2. Nanjing Institute of Comprehensive Utilization ofWild Plants, Nanjing 210042, China)
  • Received:2008-06-13 Revised:2008-11-11 Online:2009-04-15 Published:2010-12-29
  • Contact: ZHANG Wei-ming2,*， E-mail:botanyzh@163.com

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Abstract:

The microwave-assisted hydrodistillation (MAHD) and solvent-free microwave extraction (SFME) processes of essential oil from cumin seed were optimized through orthogonal test respectively, and the quality of essential oil was analyzed by GC with the content of cuminaldehyde as the evaluation index. Results showed that the optimum conditions of MAHD extraction are as follows: extraction time 90 min, microwave power 300 W, ratio of solvent to raw material 6:1, and under these conditions the extraction yield and the content of cuminaldehyde are 3.501% and 19.121％, respectively. The optimum conditions of SFME extraction are as follows: extraction time 45 min, soaking time 30 min, microwave power 200 W, and under these conditions the extraction yield and the content of cuminaldehyde are 2.461% and 23.910％, respectively.

Key words: microwave, essential oil, cuminaldehyde

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