Innovative chitosan-silver nanoparticles: Green synthesis, antimicrobial properties, and migration assessment for food packaging

Demirbaş A., Karslı B.

FOOD CHEMISTRY, cilt.467, ss.1-9, 2025 (SCI-Expanded)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 467
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1016/j.foodchem.2024.142363
  • Dergi Adı: FOOD CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, EMBASE, Food Science & Technology Abstracts, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.1-9
  • Recep Tayyip Erdoğan Üniversitesi Adresli: Evet

Özet

This study investigates the green synthesis of chitosan-based silver nanoparticles (Ag NPs) and their application as antimicrobial coatings for food preservation. The effects of three coatings were evaluated on refrigerated tomatoes over 22 days: distilled water (control), 1 % chitosan (CH), and chitosan-based Ag NPs (Ag/CH). The synthesized Ag/CH was characterized by FT-IR, UV–vis spectroscopy, SEM, TEM, DLS, and XRD, confirming successful synthesis and a crystalline face-centered cubic structure. Antimicrobial activity, evaluated using the disk diffusion method, showed that Ag/CH coatings demonstrated superior antibacterial properties, with inhibition zones ranging from 9.19 to 11.07 mm. The Ag/CH coating effectively maintained tomato quality, with minimal changes in pH, color, and microbial counts. Although silver migration occurred, it remained within safety limits. This study addresses a gap in the literature by investigating the effects of chitosan-based silver nanoparticles on tomato quality and metal migration, demonstrating their potential as a sustainable solution for food preservation.

This study investigates the green synthesis of chitosan-based silver nanoparticles (Ag NPs) and their application as antimicrobial coatings for food preservation. The effects of three coatings were evaluated on refrigerated tomatoes over 22 days: distilled water (control), 1 % chitosan (CH), and chitosan-based Ag NPs (Ag/CH). The synthesized Ag/CH was characterized by FT-IR, UV–vis spectroscopy, SEM, TEM, DLS, and XRD, confirming successful synthesis and a crystalline face-centered cubic structure. Antimicrobial activity, evaluated using the disk diffusion method, showed that Ag/CH coatings demonstrated superior antibacterial properties, with inhibition zones ranging from 9.19 to 11.07 mm. The Ag/CH coating effectively maintained tomato quality, with minimal changes in pH, color, and microbial counts. Although silver migration occurred, it remained within safety limits. This study addresses a gap in the literature by investigating the effects of chitosan-based silver nanoparticles on tomato quality and metal migration, demonstrating their potential as a sustainable solution for food preservation.