Preparation and application of a flaxseed meal protein film containing lemongrass (Cymbopogon citratus) oil

Summary Flaxseed meal protein ( FMP ) films were prepared, and their mechanical properties (tensile strength ( TS ) and elongation at break (E) values), water vapour permeability, optical properties and thermogravimetric analysis were evaluated. Briefly, 5 g FMP , 2 g fructose and 0.03 g ferulic acid were required for the optimal preparation of an FMP film. The TS and E values of the FMP film were 13.12 MP a and 61.90%, respectively. Furthermore, different amounts of lemongrass oil ( LE ) were incorporated into the FMP film to prepare an antimicrobial film. Wrapping pen shell adductor muscle with the FMP film containing 1.0% LE reduced the counts of inoculated Listeria monocytogenes and Escherichia coli O157:H7 compared with those in the control, after storage at 4 °C for 12 day. Consequently, packaging with FMP film containing 1.0% LE can be useful in improving the quality of pen shell adductor muscle during storage.