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Effect of relative humidity on carvacrol release and permeation properties of chitosan based films and coatings (CROSBI ID 189947)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Kurek, Mia ; Guinault, Alain ; Voilley, Andree ; Galić, Kata ; Debeaufort, Frederic Effect of relative humidity on carvacrol release and permeation properties of chitosan based films and coatings // Food chemistry, 144 (2014), 9-17. doi: 10.1016/j.foodchem.2012.11.132

Podaci o odgovornosti

Kurek, Mia ; Guinault, Alain ; Voilley, Andree ; Galić, Kata ; Debeaufort, Frederic

engleski

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

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 ore pronounced at high humid environment, while at low RH the matrix plasticization was induced by carvacrol. The deposit of a thin chitosan layer on polyethylene decreased PO2 and PCO2 both in dry and humid conditions. The carvacrol release from the chitosan matrix was strongly influenced by RH. A temperature increase from 4 to 37 C also had an impact on carvacrol diffusivity but to a lesser extent than RH.

biopolymer; relative humidity permeability; contact angle; active compound release; swelling

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o izdanju

144

2014.

9-17

objavljeno

0308-8146

10.1016/j.foodchem.2012.11.132

Povezanost rada

Biotehnologija, Prehrambena tehnologija

Poveznice
Indeksiranost