Preparation of edible antibacterial films based on corn starch /carbon nanodots for bioactive food packaging.
Food Chem
; 444: 138467, 2024 Jun 30.
Article
em En
| MEDLINE
| ID: mdl-38309078
ABSTRACT
Packaging plays an important role in protecting food from environmental impacts. However, traditional petroleum-based packaging has difficulty in meeting the antimicrobial and antioxidant requirements of prepared foods. This study introduced carbon dots (CDs), prepared by using carrot as a precursor, into corn starch (CS) to construct a bio-friendly composite film with high freshness retention properties. The scavenging of DPPH radicals reached 92.77 % at a CDs concentration of 512 µg/mL, and the antimicrobial activity of CS/5% CDs against Escherichia coli and Staphylococcus aureus was increased to 99.9 %. Notably, the homogeneous doping of CDs creates a dense surface and high carbon content inside the film, which promotes the elasticity and thermal stability of the composite film. Finally, we encapsulated deep-fried meatballs in CS-CDs films. The results showed that the CS-CDs films effectively protected the quality of deep-fried meatballs, and have excellent potential for application in food preservation.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Quitosana
/
Anti-Infecciosos
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article