Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (12): 2498-2504.DOI: 10.3969/j.issn.1000-2561.2019.12.025

• Agricultural Product Processing, Preservation, Storage, Analysis and Detection • Previous Articles     Next Articles

Composition of Essential oils and Hydrosols Acquired from Alpinia officinarum Hance by Supercritical CO2 Extraction and Steam Extraction

LIN Lijing1,3,HUANG Xiaobing1,3,LIU Mengjie1,2,LI Jihua1,3,*()   

  1. 1. Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Tropical Crop Products Processing, Ministry of Agriculture and Rural Affairs, Zhanjiang, Guangdong 524001, China
    2. College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, China
    3. Hainan Key Laboratory of Storage & Processing of Fruits and Vegetables, Zhanjiang, Guangdong 524001, China
  • Received:2019-06-13 Revised:2019-10-08 Online:2019-12-25 Published:2019-12-20
  • Contact: LI Jihua


The essential oils and hydrosols were acquired from Alpinia officinalis Hance by supercritical CO2 extraction and steam extraction, and the extraction rate and appearance color of the oils and hydrosols were analyzed. The components of the samples were analyzed by gas chromatography-mass spectrometry (GC-MS). The results showed that the yield of the essential oil and hydrosols extracted by supercritical CO2 was higher than that by steam extraction, and there was no difference in the appearance color of hydrosols. There were 35 components of essential oils and 20 components of hydrosols extracted by supercritical CO2 technology, and 29 components of essential oil and 19 components of hydrosols extracted by steam extraction. The components extracted by the two methods were different. The relative content of 1,8-eucalyptin in the oils extracted by supercritical fluid was 15.49%, and that extracted by steam was 10.61%. The highest content of hydrosols extracted by supercritical fluid was limonene, with a relative content of 68.50%. The highest content of hydrosols extracted by steam was 1,8-eucalyptin, with a relative content of 31.83%. The experimental results could provide a theoretical basis for the extraction of essential oils and hydrosols of A. officinalis Hance.

Key words: supercritical CO2 extraction, steam extraction, essential oils, hydrosols

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