Soluble soybean polysaccharide/ TiO 2 nanocomposites: Biological activity, release behavior, biodegradability, and biosafety

This study aimed to produce and characterize eco‐friendly SSPS nanocomposites incorporated with various concentrations of TiO 2 nanoparticles (NPs) (1%, 3%, and 7%). The antimicrobial activity of the nanocomposite films against five strains of pathogenic bacteria was examined. Salmonella typhi PTCC...

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Bibliographic Details
Published in:Journal of food safety 2023-02, Vol.43 (1)
Main Authors: Salarbashi, Davoud, Tafaghodi, Mohsen, Rajabi, Omid, Fazli Bazzaz, Bibi Sedigheh, Soheili, Vahid
Format: Article
Language:English
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Summary:This study aimed to produce and characterize eco‐friendly SSPS nanocomposites incorporated with various concentrations of TiO 2 nanoparticles (NPs) (1%, 3%, and 7%). The antimicrobial activity of the nanocomposite films against five strains of pathogenic bacteria was examined. Salmonella typhi PTCC 1609 was the most sensitive species to TiO 2 NPs at concentrations equal to the synthetic antibiotic. The migration of TiO 2 to ethanol and acetic acid, as two food simulants increased when the initial nano‐TiO 2 content increased. The release profiles for TiO 2 in two simulants of ethanol and acetic acid indicated a non‐Fickian release, and the release kinetics were concentration‐dependent. SSPS/TiO 2 nanocomposites degraded easily and thus have the potential to be applied as an eco‐friendly packaging system. Oral administration of doses of 1, 12.5, 25, 50, and 75 mg/kg TiO 2 revealed that the dose of 50 and 75 mg/kg increased malondialdehyde ( p  
ISSN:0149-6085
1745-4565
DOI:10.1111/jfs.13024