Biodegradable Active Packaging Material Containing Grape Seed Ethanol Extract and Corn Starch/κ-Carrageenan Composite Film

An active film composed of corn starch/κ-carrageenan and ethanolic grape seed extract (0, 1, 3, and 5 wt% of GSE on corn starch basis) were successfully prepared using the solvent casting technique. The effects of the different concentrations of ethanolic grape seed extract (GSE) on the physicochemi...

Full description

Saved in:
Bibliographic Details
Published in:Polymers 2022-11, Vol.14 (22), p.4857
Main Authors: Wang, Cuntang, An, Xuanzhe, Lu, Yueyi, Li, Ziyu, Gao, Zengming, Tian, Shengxin
Format: Article
Language:English
Subjects:
Acetaldehyde
Alcohol
Alcohol, Denatured
Antioxidants
Biodegradability
Biodegradable materials
Carrageenan
Carrageenin
Cellulose
Corn
Elongation
Ethanol
Food
Food packaging
Glass transition temperature
Glycerol
Grapes
Humidity
Lipids
Mechanical properties
Oxidation tests
Packaging
Polyethylene
Polyphenols
Recrystallization
Seeds
Surface roughness
Tensile strength
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:An active film composed of corn starch/κ-carrageenan and ethanolic grape seed extract (0, 1, 3, and 5 wt% of GSE on corn starch basis) were successfully prepared using the solvent casting technique. The effects of the different concentrations of ethanolic grape seed extract (GSE) on the physicochemical properties, antioxidant properties, and antibacterial properties of CS/κC films were analyzed. The results showed that the addition of GSE inhibited the recrystallization of starch in the composite film. The glass transition temperature of composite film is 121.65 °C. With the addition of GSE, the surface roughness of the composite film increased, and the cross-section displayed a stratification phenomenon. Meanwhile, when GSE was added to the composite film, the tensile strength of the composite film decreased (3.50 ± 0.27 MPa), the elongation at break increased (36.87 ± 2.08%), and the WVP increased (1.58 ± 0.03 g mm/m2·d· kPa). With the increase of the concentration of GSE in the composite film, the a* value and b* value of the composite film increase, the L* value decreases, and the opacity increases. The lipid oxidation test proved that the composite films containing 1% GSE has a significant inhibitory effect on the oxidation 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.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym14224857