Results 181 to 190 of about 14,159 (228)

Extractive fermentation of aroma with supercritical CO2

Biotechnology and Bioengineering, 1999
This work deals with the feasibility of achieving an extractive fermentation of 2-phenylethyl alcohol, the rose aroma, coupling fermentation with Kluyveromyces marxianus and supercritical carbon dioxide (SCCO2) extraction. The extractive process is, in this case, of special interest due to the strong yeast inhibition by 2-phenylethyl alcohol.
, Fabre, , Condoret, , Marty
openaire   +2 more sources

Supercritical CO2 fractionation of jasmine concrete

The Journal of Supercritical Fluids, 1995
Abstract Jasmine fragrance is usually produced by hexane extraction. The extraction product called a “concrete,” undergoes further processing to separate fragrance compounds from undesired coextractives such as paraffins and fatty acid methyl esters. This study reports supercritical CO 2 fractionation of jasmine concrete to avoid thermal degradation
REVERCHON, Ernesto, DELLA PORTA, Giovanna, Gorgoglione D.   +2 more
openaire   +2 more sources

Use of supercritical CO2 for bone delipidation

Biomaterials, 1994
Supercritical carbon dioxide was used for bone delipidation. It appeared that this technology is very efficient since supercritical CO2 is able to diffuse into microporous solids much better than liquids and that it has a good solvent capacity for lipids.
J, Fages, A, Marty, C, Delga, J S, Condoret, D, Combes, P, Frayssinet   +5 more
openaire   +2 more sources

Rose concrete fractionation by supercritical CO2

The Journal of Supercritical Fluids, 1996
Abstract Supercritical CO2 extraction was used to post-process a solid rose extract produced by liquid solvent extraction. Single step supercritical extraction at 80 bar, 40 °C, and a two-stage separation procedure at 80 bar and −16 °C and at 15 bar and 0 °C, were the optimum process conditions to produce a volatile rose oil with an overall 2-phenyl ...
REVERCHON, Ernesto, DELLA PORTA, Giovanna   +1 more
openaire   +2 more sources

Polymorph Control of Sulfathiazole in Supercritical CO2

Pharmaceutical Research, 2001
Sulfathiazole was used to investigate polymorph control in liquid and supercritical CO2. Conventional techniques require a variety of solvents and techniques to produce different polymorphs. The present approach involves precipitation from an organic solution with liquid or supercritical CO2 using the SEDS process.Sulfathiazole was precipitated from ...
York, Peter, Kordikowski, Andreas, Shekunov, T.   +2 more
openaire   +3 more sources

Effect of Supercritical CO2 on PVDF

Volume 6B: Pipeline and Riser Technology, 2014
The pre-salt fields have a high content of carbon dioxide (CO2) that can be in the supercritical state due to reservoir conditions of temperature and pressure. This high concentration of carbon dioxide has a direct impact on the strategies used in the exploration and exploitation of the reservoir, including the selection of materials and equipment used
Daniele A. Laurentino, Marlon D. C. Silva, Celio A. Costa, Fernando L. P. Pessoa, Marysilvia F. Costa   +4 more
openaire   +1 more source

Corrosion Testing in Supercritical CO2

CORROSION 2020, 2020
Abstract Carbon capture and storage or carbon capture and utilisation (CCS or CCU) are being considered in order to facilitate the extended use of both fossil-fuel power stations and high carbon dioxide (CO2) emitting industrial facilities such as steel, cement and petrochemical plants.
David Smyth-Boyle, Shiladitya Paul
openaire   +1 more source

Progress in Supercritical CO2 Dyeing

Journal of Industrial Textiles, 2001
Supercritical fluids have special properties that could lead to substantial improvements when utilized as replacements for water in wet processing of textiles. These fluids have densities and solvating powers similar to liquid solvents combined with viscosity values and diffusion coefficients like those observed for gases.
openaire   +1 more source

Use of supercritical CO2 in food industry

2014
Supercritical fluid extraction (SFE) is the process of separating one component (the extractant) from another (the matrix) using supercritical fluids (SCF) the extracting solvent. Carbon dioxide is the most commonly used supercritical fluid in food industry, especially being used for decaffeination.
İNCEDAYI, BİGE, ÇOPUR, ÖMER UTKU, SUNA, SENEM   +2 more
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Ionic Liquids and Supercritical Co2

2003
Although ionic liquids (ILs) are organic solvents, They exhibit vanishing small vapour pressures [1,2]. Negligible volatility means that the most prevalent route for escape to the atmosphere and also exposure to workers — evaporation — is absent. Low vapour pressure may also renders these solvents safer, as flash points will be much higher than for ...
Lynnette A. Blanchard, Zhiyong Gu, Joan F. Brennecke, Eric J. Beckman   +3 more
openaire   +1 more source