Bioactive packaging based on gelatin incorporated with rapeseed meal for prolonging shelf life of rapeseed
2021
Tymczewska, Alicja | Szydłowska-Czerniak, Aleksandra | Nowaczyk, Jacek
A biodegradable and antioxidant films were prepared from gelatin enriched with rapeseed meal (RM) and their applicability as a packaging materials for rapeseed was investigated. The effect of films’ composition on their morphology, optical, and mechanical characteristics was studied and compared. Three extraction-dependent: 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH), and cupric ion reducing antioxidant capacity (CUPRAC) methods as well as extraction-free QUENCHER (QUick, Easy, New, CHEap and Reproducible) procedure were applied to determine the antioxidant capacity (AC) of the obtained gelatin films. The synthesized films were evaluated as packages for rapeseed stored under accelerated conditions for 7 and 14 days. After 2 weeks of storage, the highest antioxidant properties had rapeseed packed in a new bag and oil pressed from stored seeds. Therefore, gelatin film incorporating RM can be used as a functional packaging to protect oilseeds with high fat content from oxidation processes.
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