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Molecules 2013, 18(11), 13735-13753; doi:10.3390/molecules181113735

Physicochemical, Antimicrobial and Antioxidant Properties of Chitosan Films Incorporated with Carvacrol

Departamento de Biotecnología y Ciencias Alimentarias, Instituto Tecnológico de Sonora, 5 de febrero 818 sur, Cd. Obregón, Sonora 85000, Mexico
Centro de Investigación en Alimentación y Desarrollo A.C., Av. Río Conchos S/N Parque Industrial, Cuauhtémoc, Chihuahua 31570, Mexico
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Unidad Centro, Hermosillo, Sonora 83000, Mexico
Author to whom correspondence should be addressed.
Received: 25 September 2013 / Revised: 23 October 2013 / Accepted: 25 October 2013 / Published: 7 November 2013
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Chitosan films (CF) with carvacrol (CAR) [0.5%, 1.0% and 1.5% v/v] were prepared by the emulsion method. The retained CAR, water solubility, water vapor permeability (WVP), optical, mechanical properties, antibacterial and antioxidant capacity of films were analyzed. The results indicate that the retention of CAR in the CF was ≈50%. The incorporation of CAR to CF decreased the water solubility, the WVP, the yellowing and transparency and the tensile strength, but increased the stiffness. Microcapsules with diameters of 2 to 7 µm were found on the surface CF-CAR. The CF-CAR with highest CAR concentrations showed antibacterial activity against S. typhimurium and E. coli O157:H7. The CF-CAR had higher antioxidant capacity and an increased protective effect against oxidation of erythrocytes in different grades. These results suggest potential applications of CF-CAR as active packaging to preserve food products. View Full-Text
Keywords: carvacrol; antibacterial; antioxidant; water vapor permeability; chitosan film carvacrol; antibacterial; antioxidant; water vapor permeability; chitosan film

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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

López-Mata, M.A.; Ruiz-Cruz, S.; Silva-Beltrán, N.P.; Ornelas-Paz, J.J.; Zamudio-Flores, P.B.; Burruel-Ibarra, S.E. Physicochemical, Antimicrobial and Antioxidant Properties of Chitosan Films Incorporated with Carvacrol. Molecules 2013, 18, 13735-13753.

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