Densities, Viscosities, Refractive Indices, and Excess Molar Enthalpies of Methyl <i>tert-</i>Butyl Ether + Components of Pine Resins and Essential Oils at 298.15 K

and, Romolo Francesconi; Castellari, Carlo; Comelli, Fabio

doi:10.1021/je010167n

Cited by 48 publications

(24 citation statements)

References 17 publications

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“…Their experimentally measured densities and refractive indices at 298.15 K are also reported, and compared with available literature values by other authors (13)(14)(15)(16)(17). Densities were measured in an Anton Paar DMA 5000 densimeter with an uncertainty of AE 1 Â 10 À5 g Á cm À3 , and temperature controlled with an uncertainty of AE 0.01 K with a built-in thermometer.…”

Section: Materials and Methods Materialssupporting

confidence: 53%

Alkylpyridinium Alkylsulfate Ionic Liquids as Solvents for the Deterpenation of Citrus Essential Oil

Lago

Rodríguez

Soto

et al. 2012

Separation Science and Technology

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The ionic liquids 1-methylpyridinium methylsulfate and 1-ethylpyridinium ethylsulfate were tested as solvents for the deterpenation by liquid-liquid extraction of citrus essential oil, simulated as a mixture of limonene and linalool. Liquid-liquid equilibrium data for the ternary systems limonene þ linalool þ 1-alkylpyridinium alkylsulfate (with the alkyl chain being methyl or ethyl) were determined at 298.15 K and atmospheric pressure, and suitably correlated with the UNIQUAC thermodynamic model. A comparison was established between the performance of these ionic liquids, as well as with others previously reported in the literature, to evaluate the influence of different structural features of the ionic liquids on their deterpenation ability.

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Section: Materials and Methods Materialssupporting

confidence: 53%

Alkylpyridinium Alkylsulfate Ionic Liquids as Solvents for the Deterpenation of Citrus Essential Oil

Lago

Rodríguez

Soto

et al. 2012

Separation Science and Technology

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show abstract

“…15 0.73541 0.7356 [29], 0.73540 [27] 0.32018 0.3354 [30], 0.41 [31], 0.3687 [28] 303. 15 0.73011 0.7301 0 [27] 0.29660 0.349 [32] 308.…”

Section: Resultsmentioning

confidence: 99%

Volumetric and viscometric properties of binary mixtures of {methyl tert-butyl ether (MTBE)+alcohol} at several temperatures and p=0.1MPa: Experimental results and application of the ERAS model

Hoga

Tôrres

2011

The Journal of Chemical Thermodynamics

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“…In a recent study (3), limonene toxicity was dramatically reduced in the presence of an inert extractant. The extractive solvents dibutyl phthalate (DBP) and isopropyl myristate (IPM), for example, are harmless to yeast cells and are at least an order of magnitude more viscous than limonene ( limonene ϭ 0.008 P [60], DBP ϭ 0.166 P [61], and IPM ϭ 0.043 P [62]). The viscosity of a fluid has a strong influence on droplet size, which affects the dispersion's overall surface area (63).…”

Section: Tdh1mentioning

confidence: 99%

Physiological and Transcriptional Responses of Saccharomyces cerevisiae to d -Limonene Show Changes to the Cell Wall but Not to the Plasma Membrane

Brennan

Krömer

Nielsen

2013

Appl Environ Microbiol

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bMonoterpenes can, upon hydrogenation, be used as light-fraction components of sustainable aviation fuels. Fermentative production of monoterpenes in engineered microorganisms, such as Saccharomyces cerevisiae, has gained attention as a potential route to deliver these next-generation fuels from renewable biomass. However, end product toxicity presents a formidable problem for microbial synthesis. Due to their hydrophobicity, monoterpene inhibition has long been attributed to membrane interference, but the molecular mechanism remains largely unsolved. In order to gain a better understanding of the mode of action, we analyzed the composition and structural integrity of the cell envelope as well as the transcriptional response of yeast cells treated with an inhibitory amount of d-limonene (107 mg/liter). We found no alterations in membrane fluidity, structural membrane integrity, or fatty acid composition after the solvent challenge. A 4-fold increase in the mean fluorescence intensity per cell (using calcofluor white stain) and increased sensitivity to cell wall-degrading enzymes demonstrated that limonene disrupts cell wall properties. Global transcript measurements confirmed the membrane integrity observations by showing no upregulation of ergosterol or fatty acid biosynthesis pathways, which are commonly overexpressed in yeast to reinforce membrane rigidity during ethanol exposure. Limonene shock did cause a compensatory response to cell wall damage through overexpression of several genes (ROM1, RLM1, PIR3, CTT1, YGP1, MLP1, PST1, and CWP1) involved with the cell wall integrity signaling pathway. This is the first report demonstrating that cell wall, rather than plasma membrane, deterioration is the main source of monoterpene inhibition. We show that limonene can alter the structure and function of the cell wall, which has a clear effect on cytokinesis.

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Densities, Viscosities, Refractive Indices, and Excess Molar Enthalpies of Methyl tert-Butyl Ether + Components of Pine Resins and Essential Oils at 298.15 K

Cited by 48 publications

References 17 publications

Alkylpyridinium Alkylsulfate Ionic Liquids as Solvents for the Deterpenation of Citrus Essential Oil

Alkylpyridinium Alkylsulfate Ionic Liquids as Solvents for the Deterpenation of Citrus Essential Oil

Volumetric and viscometric properties of binary mixtures of {methyl tert-butyl ether (MTBE)+alcohol} at several temperatures and p=0.1MPa: Experimental results and application of the ERAS model

Physiological and Transcriptional Responses of Saccharomyces cerevisiae to d -Limonene Show Changes to the Cell Wall but Not to the Plasma Membrane

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