1049Sustainable active packaging from chitosan infused with extract from pulsed electric field-treated microalgae to preserve quality of chicken fillet

Panisara Tanpan1, Ubonrat Siripatrawan1*

1Department of Food Technology, Faculty of Science, Chulalongkorn University, Bangkok, Thailand

Sustainable active film from chitosan (CS) incorporated with microalgae Haematococcus pluvialis extract (HPE) was developed. Pulsed electric field (PEF) with the field strength of 25 kV∙cm -1 and total specific energy of 200 kJ∙kg -1 was optimal to extract H. pluvialis by inducing the electroporation in the cytoplasmic membrane, resulting in improving the solvent-mediated extraction of the bioactive compounds, as evident by the analysis results of GC-MS and HPLC-MS. The active film was then fabricated by infusing CS with HPE or PEF-assisted HPE (PEF-HPE), and characterized for tensile strength, elongation, opacity, water vapor barrier and antioxidant activity. The optimal CS+PEF-HPE film was then used to wrap chicken fillet, in comparison to CS and CS+HPE. Chicken meat without film wrapping was used as control. All samples were stored at 4 °C and monitored for changes in color, total volatile basic nitrogen (TVB-N), trimethylamine (TMA), total viable counts (TVC) throughout the storage. Chicken breast wrapped with CS, CS+HPE and CS+PEF-HPE had significantly lower TVB-N, TMA, TVC than control samples during storage. The food preserving capability of the fabricated films increased in ascending order from CS, CS+HPE, to CS+PEF-HPE. These results indicated the fabricated CS film synergized with microalgae extract has potential as active packaging to preserve quality and extend shelf-life of chicken meat.

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