Supercritical carbon dioxide extraction and fractionation of oregano oleoresin

Simándi, Béla; Oszagyán, M.; Lemberkovics, Éva; Kéry, Ágnes; Kaszács, Jean; Thyrion, F. C.; Mátyás, Tünde

doi:10.1016/s0963-9969(99)00051-4

Cited by 63 publications

(42 citation statements)

References 8 publications

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“…It is apparent that cuticular waxes precipitated in S1, due to their lower solubility in supercritical CO 2 in comparison to terpenes and their derivatives (Stahl and Gerard, 1985). The extraction yield obtained in the separator S1 for inflorescences processed at 14 MPa (1.39% w/w, ±0.58) was significantly higher than in S1 for inflorescences processed at 10 MPa (1.03% w/w, ±0.73) because of the higher extraction pressure employed (Simandi et al, 1999). Instead, lower extraction yields were achieved in the separator S2 for inflorescences processed, respectively at 10 MPa (0.67% w/w, ±0.18) and 14 MPa (0.34% w/w, ±0.11).…”

Section: Resultsmentioning

confidence: 89%

Separation of aroma compounds from industrial hemp inflorescences (Cannabis sativa L.) by supercritical CO2 extraction and on-line fractionation

Porto¹,

Decorti²,

Natolino³

2014

Industrial Crops and Products

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Section: Resultsmentioning

confidence: 89%

Separation of aroma compounds from industrial hemp inflorescences (Cannabis sativa L.) by supercritical CO2 extraction and on-line fractionation

Porto¹,

Decorti²,

Natolino³

2014

Industrial Crops and Products

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“…In contrast, ASE uses less solvent in a shorter period of time, is automated an d retains samples in an oxygen-and light-free environment (Dener y, Dragull, Tang, & Li, 2004). Several authors (Babovic et al, 2010;Simándi et al, 1998;Zizovic, Stamenic, Orlovic, & Skala, 2005) pro posed supercritical carbon dioxide extraction as a quick and green alternative to conventional solid/liquid extraction. However, its use has been limited due to its low efficiency to extract polar compounds.…”

Section: Introductionmentioning

confidence: 99%

Optimisation of accelerated solvent extraction of antioxidant compounds from rosemary (Rosmarinus officinalis L.), marjoram (Origanum majorana L.) and oregano (Origanum vulgare L.) using response surface methodology

Barry‐Ryan²,

et al. 2011

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N. (2011). Optimisation of accelerated solvent extraction of antioxidant compounds from rosemary (Rosmarinus officinalis L.), marjoram (Origanum majorana L.) and oregano (Origanum vulgare L.) using response surface methodology. Food Chemistry, 126, (1),pp. 339-346. doi:10.1016Chemistry, 126, (1),pp. 339-346. doi:10. /j.foodchem.2010 Optimisation of accelerated solvent extraction of antioxidant compounds from rosemary (Rosmarinus officinalis L.), marjoram (Origanum majorana L.) and oregano (Origanum vulgare L.) using response surface methodology Food Chemistry 126, p339-346. The present study optimised the accelerated solvent extraction (ASE) conditions (Dionex ASEÒ 200, USA) to maximise the antioxidant capacity of the extracts from three spices of Lamiaceae family; rosemary, oregano and marjoram. Optimised conditions with regard to extraction temperature (66-129 °C) and solvent concentration (32-88% methanol) were identified using response surface methodology (RSM). For all three spices results showed that 129 °C was the optimum temperature in order to obtain extracts with high antioxidant activity. Optimal methanol concentrations with respect to the antioxidant activity of rosemary and marjoram extracts were 56% and 57% respectively. Oregano showed a different response to the effect of methanol concentration and was optimally extracted at 33%. The antioxidant activity yields of the optimal ASE extracts were significantly (p < 0.05) higher than solid/liquid extracts. The predicted models were highly significant (p < 0.05) for both total phenol (TP) and ferric reducing antioxidant property (FRAP) values in all the spices with high regression coefficients (R2) ranging from 0.952 to 0.999.

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“…6 Usually, when extracting essential oils from plant material using supercritical CO 2 (SC-CO 2 ), other compounds, such as cuticular waxes, fatty acids and colourants, can be co-extracted with the oils. 5,7,8 In the present study, the process conditions during the extraction of the oil from fennel fruits of Portuguese origin using SC-CO 2 were evaluated with respect to pressure and temperature, CO 2 flow rate and the particle size of the vegetable matter. In order to selectively obtain the essential oil free of most of the undesirable compounds, the conditions of separation (temperature and pressure) were also determined to obtain the essential oil in the second separator twice retaining the remaining compounds from the extracts, mainly waxes, in the first separator.…”

Section: Introductionmentioning

confidence: 99%

Supercritical carbon dioxide extraction of Foeniculum vulgare volatile oil

Coelho¹,

Pereira²,

Mendes

et al. 2003

Flavour & Fragrance J

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Supercritical fluid extraction (SFE) with CO 2 of the volatile oil from fennel (Foeniculum vulgare ssp. piperitum (Ucria) Coutinho) was carried out at temperatures of 40 and 50°C and pressures of 90 and 100 bar in a flow apparatus using a two-stage fractional separation technique. The best conditions for extraction (pressure P = 90 bar, and temperature, T = 40°C) and separation (P = 80 bar, T = −10°C for the first separator and P = 20 bar, T = −10°C for the second) were used to assess the effect of different mean particle size and flow rate of CO 2 . The yield of the extraction and composition of the volatile oil were compared with those obtained by hydrodistillation. The study showed that the particle size of the fruits does not practically affect either the yield or the composition of the oil, with the exception of the presence of a small amount of waxes in the volatile oil extracted by SFE from the fruits presenting the highest particle size. Further, increasing of the flow rate of CO 2 does not seem to influence the composition, although it increases the rate of extraction, thus leading to a decrease of the extraction time. The fennel oil was analysed by gas chromatography (GC) and chromatography-mass spectrometry (GC-MS). The main compounds identified in the oils were fenchone (17%), estragol (21%) and (E)-anethole (43%).

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Supercritical carbon dioxide extraction and fractionation of oregano oleoresin

Cited by 63 publications

References 8 publications

Separation of aroma compounds from industrial hemp inflorescences (Cannabis sativa L.) by supercritical CO2 extraction and on-line fractionation

Separation of aroma compounds from industrial hemp inflorescences (Cannabis sativa L.) by supercritical CO2 extraction and on-line fractionation

Optimisation of accelerated solvent extraction of antioxidant compounds from rosemary (Rosmarinus officinalis L.), marjoram (Origanum majorana L.) and oregano (Origanum vulgare L.) using response surface methodology

Supercritical carbon dioxide extraction of Foeniculum vulgare volatile oil

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