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The development of technology for obtaining essential oils from Scots pine tree folige

Daugavietis M., Spalvis K.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

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2014

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No. 87

51--54

EN

The development of technology for obtaining essential oils from Scots pine tree folige. Essential oils have been well known for several decades. They are very commonly used in several cosmetic products and aromatherapy for their good smell and benefits and effects on bacteria. Conifer tree essential oils are the organic combination mixture (mainly terpene) which is obtained from the foliage of a pine – needles and twigs. The environmental factors that influence and effect the production of essential oil in Scots pine trees (Pinus Silvestri)s has been investigated in this paper. In addition, the overall study in this research project analyses the consumption of essential oils and describes the industrial equipment used for the production of essential oils from the needles. Also the results of essental oils and the seasonal dynamic quality in Latvia are investigated. According to the results of the experiment performed in this study, the time substance of essential oils and water disengagement was defined in laboratory conditions where the temperature ranged from 20 to 90 oC , maintaining constant temperature in thermostat. By using specific pilot equipment various tree steam distillation process parameters of essential oils of pine were investigated in the study. In general, the main objectives of the research is to point out and examine the results of essential oils, their quality, overall time of the process, the consumption of the steam depending on the hydrodistolation process with a special system, intensity and to identify the stages of an ordinary foliage. The results of the research can be used to optimize the processing of needles oil and manufucture new needles oil processing plant.

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GC-MS analysis of lemon catnip (Nepeta cataria L. var. citriodora Balbis) essential oil

Wesołowska A., Jadczak D, Grzeszczuk M.

Acta Chromatographica

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2011

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Vol. 23, no. 1

169--180

EN

The essential oil of the herb Nepeta cataria L. var. citriodora was obtained by hydrodistillation in Dean-Stark apparatus and by steam distillation. The chemical composition of the oil was determined by GC-MS. Two different GC oven temperature programs were tested. The main constituents of all the samples studied were the monoterpene alcohols (R)-(+)-β-citronellol and geraniol. The largest amounts of monoterpene aldehydes (geranial and neral) were found in the hydrodistilled oil. α-Amyrin (a precursor of ursolic acid) was also detected in the oil. trans-Rose oxide, α-terpineol, geranic acid, and trace amount of rose-oxide were found in the steam distilled oil only.

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GC-MS analysis of acide components in aqueous extracts of coniferous trees' needles

Isidorov V., Rafałowski K., Vinogorova V., Reduta L., Fuksman I.

Chemia Analityczna

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2006

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Vol. 51, No. 1

79-87

EN

GC-MS method has been applied to the identification of acidic components in the needles of common spruce, Scots pine, eastern white pine, and Douglas fir. The investigated species were present in the aqueous phase after steam distillation of the essential oils. The analytes were subsequently extracted with diethyi ether and separated using capillary gas chroma-tography in the form of trimethylsilyl derivatives (TMS). The investigated samples were complex multicornponent mixtures containing aliphatic mono- and dicarboxyiic acids, hydroxycarboxylic acids, aromatic and alkyl-aromatic acids, and hydroxyl derivatives of benzaldehyde and acetophenone. Distillation of water under low pressure and subsequent GC-MS analysis of the residue have shown that the fraction of organic compounds that was not extracted with ether, consists mainly of mono- and disaccharides. For the first time the values of retention indices for 25 TMS have been determined.

PL

Stosując metodę GC-MS przeprowadzono identyfikacje związków kwasowych występujących w igliwiu świerka pospolitego, sosny zwyczajnej, sosny wejmutki oraz daglezji zielonej związki te wykryto w wodzie po destylacji olejków z parą wodną. Anality wyekstrahowano z wody eterem a następnie oznaczano za pomocą kapilarnej chromatografii gazowej w postaci pochodnych trimetylosililbwych. W skład badanych mieszanin wchodziło wiele związków organicznych należących do różnych klas. Zidentyfikowano kwasy alifatyczne, mono- i dikarboksylowe, kwasy hydroksykarboksylowe, kwasy aromatyczne oraz alkilo-aromatyczne, a także hydroksylowe pochodne benzaldehydu i acetofenonu. Po odparowaniu wody pod zmniejszonym ciśnieniem wykonano analizę GC-MS suchej pozostałości, która wykazała, że z wody nie wyekstrahowały się głównie mono- i di-sacharydy. Pierwszy raz wyznaczono wartości indeksów retencji 25 pochodnych trimetylosililowych.