Phytochemical examination of oils obtained from the fruit of mille thistle (Silybum marianum L. Gaertner) by supercritical fluid extraction

K. Szentmihályi, M. Then, Vendel Illés, Sándor Perneczky, Zoltán Sándor, Béla Lakatos, P. Vinkler

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Supercritical fluid extraction (solvent: CO2 and propane) was used for mild recovery of fatty oil of mille thistle fruit (Silybum marianum L. Gaertner). Fatty acid compounds (palmic acid, oleic acid, linolic acid, linolenic acid, behenic acid), coloring content (expressed in pheophytin and carotene), tocopherol content and concentrations of some metals (Al, As, B, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Li, Mg, Mn, Mo, Na, Ni, Pb, S, Ti, V, Zn), boron and sulfur were determined from oils and compared with oil obtained by Soxhlet extraction. There is significant difference between supercritical oil and traditional oil in the quantity of bioactive compounds and elements. The ratio of bioactive components and elements of oils changed during extraction. Supercritical oils have higher concentration of C18:1 oleic acid, C18:3 linolenic acid, C20:0 and C22:0 behenic acid than the oil gained by Soxhlet extraction. The oil obtained by supercritical fluid extraction of 80 bar and 25 °C with propane has the highest coloring content. Our paper is the first report to be published on element concentrations of mille thistle oils. Accumulation of some heavy metals can be observed in almost each oil sample.

Original languageEnglish
Pages (from-to)779-784
Number of pages6
JournalZeitschrift fur Naturforschung - Section C Journal of Biosciences
Volume53
Issue number9-10
Publication statusPublished - Sep 1998

Fingerprint

Milk Thistle
Silybum marianum
Supercritical Fluid Chromatography
supercritical fluid extraction
Supercritical fluids
Phytochemicals
Fruits
phytopharmaceuticals
Fruit
Oils
oils
fruits
Propane
propane
alpha-Linolenic Acid
acids
Coloring
Oleic Acid
linolenic acid
oleic acid

Keywords

  • α-Tocopherol Content
  • Element Concentration
  • Fatty Acid Content
  • Fruit of Silybum marianum L. Gaertner
  • Supercritical Fluid Extraction

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Biochemistry

Cite this

Phytochemical examination of oils obtained from the fruit of mille thistle (Silybum marianum L. Gaertner) by supercritical fluid extraction. / Szentmihályi, K.; Then, M.; Illés, Vendel; Perneczky, Sándor; Sándor, Zoltán; Lakatos, Béla; Vinkler, P.

In: Zeitschrift fur Naturforschung - Section C Journal of Biosciences, Vol. 53, No. 9-10, 09.1998, p. 779-784.

Research output: Contribution to journalArticle

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