A novel antioxidant chitosan film incorporated with pomegranate peel extract (PPE) (0, 1%, 2%, and 3% (w/v)) was developed. The mechanical property, water vapor permeability, total phenolic content and antioxidant activity of the films were investigated. Fourier transform infrared (FTIR) spectra revealed that good interactions occurred between functional groups of chitosan with PPE. The flexibility and water vapor barrier property were improved by incorporation with PPE. Films containing PPE had higher total phenolic content and showed better antioxidant activity. These results suggest that chitosan films incorporated with PPE can be useful for meat preservation.
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Fan et al. (2013) studied this question.