Migration of Chitosan-cinnamaldehyde-β-cyclodextrin Inclusion Complex in Antibacterial Paper and Its Application for Preservation of Xiaoxiang Chicken
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Abstract:
The migration behavior of chitosan-cinnamaldehyde-β-cyclodextrin (β-cyclodextrin, β-CD) inclusion complex in antibacterial paper and its effect on preservation of xiaoxiang chicken were studied. The migration amount of cinnamaldehyde to food simulants was determined by UV spectrophotometry. The effects of food simulants on the migration of cinnamaldehyde were analyzed. The model for cinnamaldehyde migration was established by the Fick’s law, which provided a relatively standardized quantitative reference for this research. The control group and the packaging group in preserving the quality of xiaoxiang chicken were evaluated by total bacterial count, pH, TBA, TVB-N and sensory features. Theresults showed that the migration of cinnamaldehyde to four food simulants was in the decreasing order of 50% ethanol>10% ethanol >60% glycerin> n-hexane, which indicated that the chitosan-cinnamaldehyde-β-CD inclusion complex antibacterial paper had a long-term antibacterial effect on foods with medium and high water activity. When applied on xiaoxiang chicken, TVB-N≥20 mg/100 g was used as the standard to judge meat spoilage and storage end point, the TVB-N value of the control group was 19.48 mg/100 g at day 18, and the TVB-N value of the packaging group was 20 mg/ 100 g at day 25. Compared with the control group,the packaging group could prolong the storage period of Xiaoxiang chicken for 7 days. According to the above results, the migration rate of cinnamaldehyde was affected by the controlled release of β-CD and the properties of the food simulant, and the shelf life of xiaoxiang chicken could be effectively extended by antibacterial paper.
