Abstract
The objective of this study was to develop an active banana starch film (BSF) incorporated with banana peel extract. We compared the film’s properties with commercial wrap film (polyvinyl chloride; PVC). Moreover, a comparison of the quality of minced pork wrapped during refrigerated storage (7 days at ±4 °C) was also performed. The BSF with different concentrations of banana peel extract (0, 1, 3, and 5 (%, w/v)) showed low mechanical properties (tensile strength (TS): 4.43–31.20 MPa and elongation at break (EAB): 9.66–15.63%) and water vapor permeability (3.74–11.0 × 10−10 g mm/sm2 Pa). The BSF showed low film solubility (26–41%), but excellent barrier properties to UV light. The BSF had a thickness range of 0.030–0.047 mm, and color attributes were: L* = 49.6–51.1, a* = 0.21–0.43, b* = 1.26–1.49. The BSF incorporated with banana peel extracts 5 (%, w/v) showed the highest radical scavenging activity (97.9%) and inhibitory activity of E. coli O157: H7. The BSF showed some properties comparable to the commercial PVC wrap film. Changes in qualities of minced pork were determined for 7 days during storage at ±4 °C. It was found that thiobarbituric acid reactive substances (TBARS) of the sample wrapped with the BSF decreased compared to that wrapped with the PVC. The successful inhibition of lipid oxidation in the minced pork was possible with the BSF. The BSF incorporated with banana peel extract could maintain the quality of minced pork in terms of oxidation retardation.
Highlights
Significant differences in thickness were observed between banana starch film (BSF) and polyvinyl chloride (PVC) film (p < 0.05)
PVC film had a thickness value of 0.010 mm, while the BSF had a thickness value range of 0.030–0.047 mm. This result showed that when the concentrations of banana peel extract increased, the film thickness was increased
The thickness of the BSF was not influenced by banana peel extract concentration (p > 0.05)
Summary
The use of packaging from synthetic plastics causes serious environmental problems, giving rise to a demand for packaging alternatives from biodegradable materials. The use of biodegradable packaging materials can solve this problem to obtain environmentally friendly ones, which can be made from natural polymers such as proteins, lipids, and polysaccharides. Starch has received special attention; it is abundant, cheap, biodegradable, edible, and renewable [2,3,4]. A literature search via Scopus during the last sixteen years (2006–2021) found that the film made of banana starch already published only five research papers [2,5,6,7,8], and all of these mostly focused on characterization and the banana starch was not green Cavendish spp. The effectiveness and the applicability of the banana starch film on perishable food products were not found
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