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RESEARCH PRODUCT
Aroma Volatility from Aqueous Sucrose Solutions at Low and Subzero Temperatures
Andrée VoilleyDominique ChampionMarco Covarrubias-cervantesFrédéric Debeaufortsubject
0106 biological sciencesSucrosefood.ingredientSucroseEthyl acetate01 natural scienceschemistry.chemical_compound[SPI]Engineering Sciences [physics]0404 agricultural biotechnologyfood010608 biotechnologyFreezinglow and subzero temperaturesaqueous sucrose solutionsAromaAromaChromatographyAqueous solutionbiologyFood additiveWaterEthyl hexanoatefood and beverages04 agricultural and veterinary sciencesGeneral Chemistrybiology.organism_classification040401 food scienceCold TemperatureSolutionsPartition coefficientpartition coefficientschemistryOdorantsVolatilizationGeneral Agricultural and Biological SciencesVolatility (chemistry)description
International audience; The gas-liquid partition coefficients of ethyl acetate and ethyl hexanoate have been measured in water and aqueous sucrose solutions from 25 to -10 degrees C by dynamic headspace. Experiments were carried out on sucrose solutions at temperatures where no ice formation was possible. Results showed that when sucrose concentration increased, aroma volatility increased except for ethyl hexanoate and in the highest sucrose concentration solution (57.5%). A quasi-linear temperature decrease on aroma volatility was observed in sucrose solutions from 25 to around 4 and 0 degrees C. Then, from 0 to -10 degrees C, aroma volatility did not decrease: ethyl acetate volatility remained constant but that of ethyl hexanoate increased. Enthalpy of vaporization and activity coefficients of the aroma compounds were calculated.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2004-11-01 |