Determination of Essential Oil Composition of Prangos acaulis (DC) Bornm Obtained by Hydrodistillation and Supercritical Fluid Extraction Methods

2007 ◽  
Vol 7 (17) ◽  
pp. 2535-2538 ◽  
Author(s):  
Hossein Hadavand Mirzaei ◽  
Mohammad Hadi Meshka . ◽  
Saeed Soheilivand .
Keyword(s):  
Essential Oil ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Extraction Methods ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Fluid Extraction

scholarly journals Determination of essential oil content in caraway (Carum carvi L.) species by means of supercritical fluid extraction

2011 ◽  
Vol 49 (No. 6) ◽  
pp. 277-282 ◽  
Author(s):  
J. Sedláková ◽  
B. Kocourková ◽  
L. Lojková ◽  
V. Kubáň
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Small Samples ◽  
Fluid Extraction ◽  
Carum Carvi ◽  
Main Portion

Dependently on planting conditions caraway fruits contain 1–9% of essential oils consisting of about 30 compounds. Carvone and limonene account for the main portion, about 95%. To evaluate the quality of various registered caraway (Carum carvi L.) cultivars (Kepron, Prochan and Rekord) planted during 1998–2000, regarding the effect of sample grinding and preparation, plant treatment and time of harvest, the amounts of essential oil and the carvone/limonene ratio were determined. Both whole and ground caraway seeds were extracted. As obvious from the results, SFE is not suitable for the determination of essential oils in whole seeds since the results are lower in comparison with those of ground caraway. The way of grinding was also examined. Of the three mills used, a splintery mill VIPO seemed to be the most suitable. Further, the amount of essential oil was studied in caraway gathered at the beginning of maturation (sample A) and at full ripeness (sample B) of caraway seeds. It was found that the samples gathered at full ripeness (samples B) had more essential oil. It was also concluded that the use of the regulator Roundup Bioaktiv during caraway maturation to unite the ripening of achenes in the main umbel and the first-order umbels, and the use of fungicides (Alert S and Prelude 10) affected positively the amount of essential oil in caraway. Possibilities of SFE application for the essential oil determination in small samples gathered during breeding were investigated. The results were used as a one of the criteria during breeding. Classical way of the essential oil determination does not allow this option. An alternative method for the isolation and determination of essential oils – supercritical fluid extraction (SFE) – was investigated in this study.

scholarly journals Bioactive Compounds Obtained from Polish “Marynka” Hop Variety Using Efficient Two-Step Supercritical Fluid Extraction and Comparison of Their Antibacterial, Cytotoxic, and Anti-Proliferative Activities In Vitro

Molecules ◽  
2021 ◽  
Vol 26 (8) ◽  
pp. 2366
Author(s):  
Katarzyna Klimek ◽  
Katarzyna Tyśkiewicz ◽  
Malgorzata Miazga-Karska ◽  
Agnieszka Dębczak ◽  
Edward Rój ◽  
...  
Keyword(s):  
Supercritical Fluid Extraction ◽  
Supercritical Fluid ◽  
Bioactive Compounds ◽  
Crude Extract ◽  
Normal Skin ◽  
Extraction Methods ◽  
Biological Properties ◽  
Added Value ◽  
Fluid Extraction

Given the health-beneficial properties of compounds from hop, there is still a growing trend towards developing successful extraction methods with the highest yield and also receiving the products with high added value. The aim of this study was to develop efficient extraction method for isolation of bioactive compounds from the Polish “Marynka” hop variety. The modified two-step supercritical fluid extraction allowed to obtain two hop samples, namely crude extract (E1), composed of α-acids, β-acids, and terpene derivatives, as well as pure xanthohumol with higher yield than that of other available methods. The post-extraction residues (R1) were re-extracted in order to obtain extract E2 enriched in xanthohumol. Then, both samples were subjected to investigation of their antibacterial (anti-acne, anti-caries), cytotoxic, and anti-proliferative activities in vitro. It was demonstrated that extract (E1) possessed more beneficial biological properties than xanthohumol. It exhibited not only better antibacterial activity against Gram-positive bacteria strains (MIC, MBC) but also possessed a higher synergistic effect with commercial antibiotics when compared to xanthohumol. Moreover, cell culture experiments revealed that crude extract neither inhibited viability nor divisions of normal skin fibroblasts as strongly as xanthohumol. In turn, calculated selectivity indexes showed that the crude extract had from slightly to significantly better selective anti-proliferative activity towards cancer cells in comparison with xanthohumol.

scholarly journals Compositional Analysis and Aroma Evaluation of Feijoa Essential Oils from New Zealand Grown Cultivars

Molecules ◽  
2019 ◽  
Vol 24 (11) ◽  
pp. 2053 ◽  
Author(s):  
Yaoyao Peng ◽  
Karen Suzanne Bishop ◽  
Siew Young Quek
Keyword(s):  
New Zealand ◽  
Essential Oil ◽  
Essential Oils ◽  
Extraction Method ◽  
Compositional Analysis ◽  
Extraction Methods ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Active Compounds ◽  
Initial Comparison

Feijoa is an aromatic fruit and the essential oil from feijoa peel could be a valuable by-product in the juicing industry. An initial comparison of the essential oil extraction methods, steam-distillation and hydro-distillation, was conducted. The volatile compounds in the essential oils from four feijoa cultivars were identified and semi-quantified by GC-MS and the aroma active compounds in each essential oil were characterized using SPME-GC-O-MS. Hydro-distillation, with a material to water ratio of 1:4 and an extraction time of 90 min, was the optimized extraction method for feijoa essential oil. The Wiki Tu cultivar produced the highest essential oil yield among the four selected cultivars. A total of 160 compounds were detected, among which 90 compounds were reported for the first time in feijoa essential oils. Terpenes and esters were dominant compounds in feijoa essential oil composition and were also major contributors to feijoa essential oil aroma. Key aroma active compounds in feijoa essential oils were α-terpineol, ethyl benzoate, (Z)-3-hexenyl hexanoate, linalool, (E)-geraniol, 2-undecanone, 3-octanone, α-cubebene, and germacrene D. This is the first report on the optimization of the extraction method and the establishment of the aroma profile of feijoa essential oils, with a comparison of four New Zealand grown cultivars.

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