title: Novel Methodology for Measuring Temperature-Dependent Henry's Constants of Flavor Molecules.
abstract: A new methodology is presented to measure water-air partition coefficients (Henry's constants) of volatiles, using APCI-MS. Significant advantages over other Henry's constant determination methods include the short measurement and sample preparation time and the possibility for simultaneous measurement of multiple volatiles. The methodology is validated by obtaining good agreement with reliable literature values for a series of 2-ketones. The methodology is further explored for eight key volatiles typically found in citrus fruits, including the temperature dependence of the Henry's constant. Using these data can improve estimates of flavor losses during processing and volatile release during consumption.
authors.affiliation: †Firmenich S.A., Rue de la Bergère 7, Meyrin 2, CH-1217 Geneva, Switzerland.
authors.forename: Shane
authors.initials: S
authors.lastname: Avison
authors.affiliation: §Western Switzerland - Valais, Institute of Life Sciences, University of Applied Sciences and Arts, Route du Rawyl 64, CH-1950 Sion, Switzerland.
authors.forename: Kitty
authors.initials: K
authors.lastname: van Gruijthuijsen
authors.affiliation: §Western Switzerland - Valais, Institute of Life Sciences, University of Applied Sciences and Arts, Route du Rawyl 64, CH-1950 Sion, Switzerland.
authors.forename: Mirela
authors.initials: M
authors.lastname: Pascu
authors.affiliation: †Firmenich S.A., Rue de la Bergère 7, Meyrin 2, CH-1217 Geneva, Switzerland.
authors.forename: Alan
authors.initials: A
authors.lastname: Parker
authors.affiliation: †Firmenich S.A., Rue de la Bergère 7, Meyrin 2, CH-1217 Geneva, Switzerland.
authors.forename: Igor
authors.initials: I
authors.lastname: Bodnár
mesh_terms: D002957:Citrus / Q000737:chemistry; D013058:Mass Spectrometry / Q000379:methods*; D044367:Phase Transition; D013649:Taste; D013696:Temperature; D013816:Thermodynamics; D055549:Volatile Organic Compounds / Q000032:analysis*; D014835:Volatilization
chemical_list: D055549:Volatile Organic Compounds
keywords: APCI-MS; citrus; partitioning; volatiles