Extraction Processes in Isolation of Diterpenes from Coal

Authors

  • A. Zubrik Institute of Geotechnics, Slovak Academy of Sciences, Košice, Slovakia
  • M. Lovás Institute of Geotechnics, Slovak Academy of Sciences, Košice, Slovakia
  • S. Dolinská Institute of Geotechnics, Slovak Academy of Sciences, Košice, Slovakia
  • S. Hredzák Institute of Geotechnics, Slovak Academy of Sciences, Košice, Slovakia
  • Ľ. Turčániová Institute of Geotechnics, Slovak Academy of Sciences, Košice, Slovakia
  • J. Cvačka Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic
  • V. Vrkoslav Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic

Keywords:

Slovak brown coal, diterpenes, supercritical fluid extraction, microwave extraction

Abstract

The paper deals with the extraction of a tetracyclic diterpene from Slovak sub-bituminous coal. The extraction procedures used were Soxhlet, microwave-assisted, low-temperature supercritical fluid and high-temperature supercritical fluid (HSFE). The yield of the diterpene fraction containing 82.5 % of 16a(H)-phyllocladane was used to determine the efficiency of extraction procedures. HSFE seems to be the best though demanding procedure. The yield of the diterpene fraction obtained by Soxhlet and microwave-assisted extraction was 0.386 % and 0.254 %, respectively. Microwave-assisted extraction is much shorter compared with the other ones (min vs. days).

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Published

2013-09-15

How to Cite

Zubrik, A., Lovás, M., Dolinská, S., Hredzák, S., Turčániová, Ľ., Cvačka, J., & Vrkoslav, V. (2013). Extraction Processes in Isolation of Diterpenes from Coal. Chemické Listy, 107(9), 723–728. Retrieved from http://w.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/618

Issue

Vol. 107 No. 9 (2013)

Section

Articles