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- W4312941241 abstract "Abstract A biodegradable packaging film with antioxidant and antibacterial activity was developed by adding grape seed ethanol extract (1%、3%、5% per g of starch) to corn starch/κ-carrageenan (CS/кC) complex film made using the solvent casting method. The κ-carrageenan is a promising film-forming polymer with highly elastic and adhesive properties. The addition of Grape seed ethanol extract (GSE) enhanced the water vapor permeability, break elongation, and opacity of the film, and this is related to the excellent dispersion of GSE in CS/кC film observed by scanning electron microscope, and the formation of intermolecular hydrogen bond between GSE and CS proved by FT-IR. Thermogravimetric analysis showed that the CS/кC -5% GSE film has a high glass transition temperature (121.65℃). With the increase of GSE content, it improved the antioxidant capacity (DPPH radical scavenging 26.5% and ABTS radical scavenging 45.0%) and antibacterial activity (Bacteriostatic circle diameter of E. coli 12.78 ± 0.42 mm and S. aureus strains 13.52 ± 0.66 mm) of CS/кC films. Simulated food packaging experiments presented that CS/кC-GSE film significantly reduced the peroxide value of lard (P < 0.05). The above results indicate that the GSE can be used as a food-grade packaging material and has a good application prospect in the food industry." @default.
- W4312941241 created "2023-01-05" @default.
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- W4312941241 date "2022-08-04" @default.
- W4312941241 modified "2023-09-26" @default.
- W4312941241 title "Biodegradable active packaging material containing grape seed ethanol extract and corn starch/к-carrageenan composite film" @default.
- W4312941241 doi "https://doi.org/10.21203/rs.3.rs-1726538/v2" @default.
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