Dynamic extraction of spearmint oil components by using supercritical CO2

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11 Citations (Scopus)


The effects of various extraction conditions on the dynamic extraction of the essential oil components carvone and limonene from spearmint leaves using SC-CO2 were investigated. The extraction rate increased with increasing pressure or decreasing temperature. An increase of the CO2 flow rate increased the extraction rate but decreased the solvent efficiency of CO2. Ground leaf samples with a smaller particle size showed an enhanced initial extraction rate for carvone as compared to larger particle size leaf samples. The use of an ethanol modifier did not enhance the extraction rate but did cause the coextraction of pigment and waxy substances.

Original languageEnglish
Pages (from-to)315-322
Number of pages8
JournalSeparation Science and Technology
Issue number2
Publication statusPublished - 2000
Externally publishedYes

Bibliographical note

Funding Information:
The authors acknowledge the grant support of the University of California Energy Institute and the Monsanto Co. K.H.K. acknowledges the scholarship support of the Ministry of Education, South Korea.


  • Carvone
  • Extraction
  • Limonene
  • Spearmint oil
  • Supercritical carbon dioxide

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • Process Chemistry and Technology
  • Filtration and Separation


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