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Selektywna ekstrakcja olejku lotnego z nasion czarnuszki siewnej (Nigella Sativa L.)

Wawrzyniak P., Iwanek D., Kalemba D.

Inżynieria i Aparatura Chemiczna

2004

Nr 3s

161-162

Essential oils from black cumin seeds (Nigella Sativa L.) were obtained in the process of extraction with supercritical CCh- The effect of pressure, process temperature and moisture content of extracted raw material on the quality and percentage of components was studied. It appeared possible to affect the product composition by selecting the extraction parameters.

Czarnuszka siewna (Nigella sativa L.): Skład chemiczny i aktywność biologiczna

Wajs A., Kalemba D.

Zeszyty Naukowe. Chemia Spożywcza i Biotechnologia / Politechnika Łódzka

2003

Z. 67

121-141

W pracy dokonano przeglądu literatury dotyczącej badań nad czarnuszką siewną (Nigella sativa L.). Omówiono skład chemiczny, aktywność biologiczną i zastosowanie nasion rośliny. Szczególny nacisk położono na skład i właściwości olejku eterycznego z nasion N. sativa.

This review includes the relevant literature on Nigella sativa, describes recent advantages regarding to chemical composition, properties and application of black cumin, especially essential oil from the seeds.

Supercritical carbon dioxide extraction from solid matrix of vegetable origin

Wawrzyniak P., Kalemba D., Wajs A.

Polish Journal of Chemical Technology

2003

Vol. 5, nr 4

67-69

The supercritical fluid extraction (SFE) of Nigella sativa L. (black cumin) was studied using Nigella seeds as a row material and CO2 as a solvent. Nigella sativa is widely distributed in Europe and western Asia. The Nigella seeds have been reported to have many medical properties and are used in folk medicine and as a spice in food. The effect of operation conditions was analyzed in a series of experiments at temperatures between 280 and 313 K and pressures between 8 and 10.0 MPa. The experimental data were analyzed in terms of yield, solvent requirement, loading, percent recovery and extraction rate. The results were compared with these obtained by solvent extraction of the material in Soxhlet apparatus by means of hexane. Volatiles were obtained from the extracts by hydrodistillation. The same volatile constituents in similar contents were identified in both SFE and hexane extracts. Chemical characterization of the compounds was carried out by the means of GC and GC-MS analysis. The non-volatile fraction will be subjected to further analysis.