期刊
MOLECULES
卷 18, 期 11, 页码 13735-13753出版社
MDPI
DOI: 10.3390/molecules181113735
关键词
carvacrol; antibacterial; antioxidant; water vapor permeability; chitosan film
资金
- PROMEP [ITSON-PTC-056, 103.5/12/2051]
- ITSON [PROFAPI 083, 0270]
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 approximate to 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 mu m 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.
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