Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 206, Issue -, Pages 298-305Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.02.158
Keywords
Antimicrobial film; Silver nanoparticle; Zinc oxide nanoparticle; PBAT; Starch
Funding
- Shandong provincial Department of Agriculture and Rural Affairs
Ask authors/readers for more resources
Antimicrobial starch/PBAT films with the combination of silver nanoparticles and zinc oxide nanoparticles were prepared by extrusion blowing, showing relatively homogeneous distribution of nanoparticles and improved mechanical and barrier properties. The films exhibited inhibitory effects against bacteria and extended the shelf life of fruits.
Antimicrobial starch/PBAT films with the combination of silver nanoparticles (AgNPs) and zinc oxide nano-particles (ZnONPs) were prepared by extrusion blowing. SEM demonstrated the relatively homogeneous distri-bution of nanoparticles on the fracture surfaces of the nanocomposite films. The incorporation of nanoparticles improved mechanical and barrier properties of the film. The UV-vis spectroscopy revealed that the SP-ZnO(1) film had the highest UV-absorbance. The inhibition effects of the nanocomposite films against both Gram -positive (S. aureus) and Gram-negative (E. coli) bacteria were observed. The antimicrobial efficiency of SP-Ag (0.8)-ZnO(0.2) and SP-Ag(0.6)-ZnO(0.4) films reached more than 95% within 3 h of contact. The combination of AgNPs and ZnONPs into starch/PBAT blends showed synergistic effects on improving material properties and antimicrobial efficiency of the films. Furthermore, preliminary packaging studies on peaches and nectarines revealed that the antimicrobial films inhibited spoilage of fresh produce and extended their shelf life compared with commercial LDPE packaging films.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available