Search results for "Active compound release"

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Effect of relative humidity on carvacrol release and permeation properties of chitosan based films and coating

2014

International audience; The influence of water vapour conditions on mass transport and barrier properties of chitosan based films and coatings were studied in relation to surface and structural properties. Water contact angles, material swelling, polymer degradation temperature, barrier properties (PO2, PCO2, WVP) and aroma diffusion coefficients were determined. The solvent nature and the presence of carvacrol influenced the surface and structural properties and then the barrier performance of activated chitosan films. Increasing RH from 0% to 100% led to a significant increase in material swelling. The plasticization effect of water was more pronounced at high humid environment, while at …

Matériaux [Sciences de l'ingénieur]Materials scienceBiopolymer[ SPI.MECA ] Engineering Sciences [physics]/Mechanics [physics.med-ph][ SPI.MAT ] Engineering Sciences [physics]/Materials02 engineering and technologyPermeabilityAnalytical Chemistry[SPI.MAT]Engineering Sciences [physics]/MaterialsDiffusionChitosanContact anglechemistry.chemical_compound0404 agricultural biotechnologyPolymer degradationmedicineOrganic chemistryRelative humidityCarvacrolContact angleSwellingChitosanActive compound releaseMécanique [Sciences de l'ingénieur]Food PackagingWaterHumidityRelative humidity04 agricultural and veterinary sciencesGeneral MedicinePermeationPolyethylene[SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph]021001 nanoscience & nanotechnology040401 food sciencechemistryChemical engineering13. Climate actionMonoterpenesCymenesSwellingmedicine.symptom0210 nano-technologybiopolymer; relative humidity permeability; contact angle; active compound release; swellingFood Science
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