Antimicrobial effect of an Undaria pinnatifida composite film containing vanillin against Escherichia coli and its application in the packaging of smoked chicken breast

作者：Yang Hyun Ju; Lee Ji Hyeon; Lee Ka Yeon; Song Kyung Bin^*

来源：International Journal of Food Science and Technology, 2017, 52(2): 398-403.

DOI：10.1111/ijfs.13294

• Antimicrobial agents
• packaging materials
• poultry
• proteins
• seaweeds

To develop a value-added product, we used the under-utilised seaweed Undaria pinnatifida as a source material for the fabrication of a biodegradable film by extracting U. pinnatifida protein (UPP). UPP/gelatine composite films with different constituent ratios were prepared. In addition, the UPP/gelatine composite films containing vanillin (0.05%, 0.1% and 0.5%) were prepared as antimicrobial packaging material. To evaluate the utility of the UPP composite film containing 0.5% vanillin as food packaging material, smoked chicken breast samples inoculated with Escherichia coli were packed with the film and stored at 4 degrees C for 10 days. It was observed that packaging of smoked chicken breast with the UPP composite film containing vanillin decreased the population of the inoculated E. coli by 1.12 log CFU g(-1) compared with that in the control sample. Thus, the UPP/gelatine composite film with added vanillin can be utilised as a packaging material for smoked chicken breast.

• 出版日期2017-2