Engineering eco-friendly and biodegradable biomass-based multifunctional antibacterial packaging films for sustainable food preservation

被引：30
作者：
Dang, Xugang [1 ,2 ,3 ]
Du, Yongmei [1 ,2 ]
Wang, Xuechuan [1 ,2 ]
机构：
[1] Shaanxi Univ Sci & Technol, Inst Biomass & Funct Mat, Coll Bioresources Chem & Mat Engn, Xian 710021, Peoples R China
[2] Shaanxi Univ Sci & Technol, Coll Bioresources Chem & Mat Engn, Natl Demonstrat Ctr Expt Light Chem Engn Educ, Xian 710021, Peoples R China
[3] Wuhan Text Univ, Hubei Prov Engn Lab Clean Prod & High Value Utiliz, Wuhan 430200, Peoples R China
来源：
FOOD CHEMISTRY | 2024年 / 439卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Oxidized corn starch; Gelatin; Antibacterial activity; Biodegradability; Food preservation; MECHANICAL-PROPERTIES; GELATIN; CHITOSAN;
D O I：
10.1016/j.foodchem.2023.138119
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The study presents a new class of eco-friendly and biodegradable biomass-based multifunctional antibacterial packaging films (G-OCSI) based on oxidized corn starch-based nonionic biopolymer (OCSI) and gelatin (Gel), and investigates the effects of different OCSI contents on the properties of G-OCSI. The results demonstrated that GOCSI 0.25 had good water vapor barrier properties, antioxidant activity (DPPH RSA: 85.84 %), UV resistance (UV blocking > 99.9 %), water resistance (WCA: 122.30), and tensile properties. Based on the disk diffusion experiment, G-OCSI exhibited significant bactericidal and antibacterial effects against S. aureus and E. coli. Moreover, G-OCSI had good biodegradability in natural environments, and could obviously accelerate the crops growth. Finally, a banana preservation experiment confirmed that G-OCSI could significantly extend the shelf life of bananas at room temperature at least 3 days. The biodegradable packaging films not only realizes the sustainable utilization of biomass resources but also has the potential to replace traditional petroleum-based plastics.
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页数：13
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