Akademik Veri Yönetim Sistemi
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION, cilt.17, sa.5, ss.4954-4962, 2023 (SCI-Expanded, Scopus)
Edible films provide environmentally friendly alternatives to plastic packages and can be produced by various biopolymers. Biopolymers from food waste are a promising source for packaging applications. In this study, rice protein (RP: 10-20% w/w) was used to reinforce maize starch edible films. Also, Laurus nobilis L. leaf essential oil (EO) was added to the film composition. Thickness, density, solubility and swelling in water, water vapor permeability, mechanical, color, opacity, and FTIR analyzes of films were performed. Antimicrobial and total phenolics and antioxidant activities of films containing EO as active content were also determined. RP and EO provided a reduction in solubility by strengthening the films against water. The percentage solubility value was found as 21.840 in the control film sample and 9.690 for the 20RP + EO sample. RP did not affect water vapor permeability significantly, while EO caused an increase. The maize starch-based control film had the lowest yellowness index (- 0.656) and opacity (4.169), while these values increased with the additives and maximum values were obtained in the film containing 20% RP and EO (26.097 and 12.498, respectively). The antimicrobial effect of EO-containing edible films against B. cereus has been observed. In addition, these films were also tested on strawberries, and it was concluded that the visual quality and shelf life of fruit were positively affected during 5-day storage in ambient conditions. Films containing bay leaf EO and RP have proven to be suitable for active packaging applications.