Phase behavior of lemon and bergamot peel oils in supercritical CO2

Franceschi, Elton; Grings, Marcelo Boer; Frizzo, Caren D.; Oliveira, J. Vladimir; Dariva, Cláudio

doi:10.1016/j.fluid.2004.06.041

Cited by 55 publications

(37 citation statements)

References 14 publications

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“…This oil showed a major percentage of oxygenated monoterpenes in comparison to the essential oil P1 (4.60% vs. 2.58%, respectively). Our results agree with data reported by Franceschi et al [8] (limonene, 58.64%; c-terpinene, 14.82%; b-pinene, 11.17%). Leaves essential oil obtained by hydrodistillation (L1) revealed the presence of 36 main constituents (98.33% of the total oil).…”

Section: Chemical Profilesupporting

confidence: 93%

Chemical Profile and Antioxidant Properties of Extracts and Essential Oils from Citrus × limon (L.) Burm. cv. Femminello Comune

Loizzo

Tundis

Bonesi

et al. 2016

Chemistry & Biodiversity

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Citrus × limon cv. Femminello Comune (Rutaceae) from Rocca Imperiale (Italy), one of the six Protected Geographical Indication (PGI) Italian lemon crops, has been recently received renewed interest. In this work, fresh and dried peels and leaves were extracted by hydrodistillation, supercritical fluid extraction (SFE), and Soxhlet apparatus. Chemical profile was assessed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). Except for leaves extracts obtained by Soxhlet apparatus, the monoterpene hydrocarbons fraction dominated. Limonene, γ-terpinene, and β-pinene were the main identified compounds. The antioxidant activity was investigated using different in vitro assays namely 2,2-diphenyl-1-picrylhydrazyl (DPPH), ABTS, ferric reducing ability power (FRAP), and β-carotene bleaching test. In DPPH test, the essential oil obtained by hydrodistillation of fresh peel exhibited the highest activity (IC50 of 1.17 mg/ml). Leaves extracted by SFE showed a good activity in both DPPH and β-carotene bleaching test with IC50 values of 2.20 and 6.66 mg/ml, respectively. Monoterpene hydrocarbons fraction exhibited a positive Pearson's correlation coefficient with all antioxidant assays. Leaves, often considered waste material, should be considered from a different point because they represent a matrix of indisputable interest.

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Section: Chemical Profilesupporting

confidence: 93%

Chemical Profile and Antioxidant Properties of Extracts and Essential Oils from Citrus × limon (L.) Burm. cv. Femminello Comune

Loizzo

Tundis

Bonesi

et al. 2016

Chemistry & Biodiversity

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“…The experimental apparatus and procedure have been used in a variety of studies (Corazza et al, 2003;Franceschi et al, 2004;Ndiaye et al, 2006;Benazzi et al, 2006). Briefly, the experimental setup consists of a variable-volume view cell with two sapphire windows for visual observation, an absolute pressure transducer (Smar LD 301) with a precision of ±0.03 MPa, a portable programmer (Smar, HT 201) for pressure data acquisition and a syringe pump (ISCO 260D).…”

Section: Apparatus and Experimental Proceduresmentioning

confidence: 99%

High-pressure cloud point data for the system glycerol + olive oil + n-butane + AOT

Bender¹,

Junges²,

Franceschi³

et al. 2008

Braz. J. Chem. Eng.

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-This work reports high-pressure cloud point data for the quaternary system glycerol + olive oil + n-butane + AOT surfactant. The static synthetic method, using a variable-volume view cell, was employed for obtaining the experimental data at pressures up to 27 MPa. The effects of glycerol/olive oil concentration and surfactant addition on the pressure transition values were evaluated in the temperature range from 303 K to 343 K. For the system investigated, vapor-liquid (VLE), liquid-liquid (LLE) and vapor-liquid-liquid (VLLE) equilibrium were recorded. It was experimentally observed that, at a given temperature and surfactant content, an increase in the concentration of glycerol/oil ratio led to a pronounced increase in the slope of the liquidliquid coexistence curve. A comparison with results reported for the same system but using propane as solvent showed that much lower pressure transition values are obtained when using n-butane.

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“…The experimental apparatus and procedure have been described in detail in a variety of studies [18][19][20][21][22][23] and was extensively validated [24][25][26][27]. The polymer concentrations used in this work (1, 3, 5, and 7) wt%, were adopted so as to allow safe and accurate phase equilibrium measurements within the operating limit of the present apparatus.…”

Section: Phase Equilibrium Apparatus and Proceduresmentioning

confidence: 99%

Phase behaviour of the ternary system {poly(ε-caprolactone)+carbon dioxide+dichloromethane}

Bender

Feitein

Mazutti

et al. 2010

The Journal of Chemical Thermodynamics

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Phase behavior of lemon and bergamot peel oils in supercritical CO2

Cited by 55 publications

References 14 publications

Chemical Profile and Antioxidant Properties of Extracts and Essential Oils from Citrus × limon (L.) Burm. cv. Femminello Comune

Chemical Profile and Antioxidant Properties of Extracts and Essential Oils from Citrus × limon (L.) Burm. cv. Femminello Comune

High-pressure cloud point data for the system glycerol + olive oil + n-butane + AOT

Phase behaviour of the ternary system {poly(ε-caprolactone)+carbon dioxide+dichloromethane}

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