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<p>In this study, Polyvinyl alcohol (PVOH)/sodium alginate (SA) biodegradable blend films, crosslinked with tetraethyl orthosilicate (TEOS) and loaded with biosynthesised silver nanoparticles (SNPs), were developed for chicken breast (CB) meat packaging. FT-IR and XRD analyses confirmed intermolecular interactions among TEOS, SNPs and the PVOH/SA matrix, while SEM/EDS revealed uniform SNP dispersion. UV-Visible spectroscopy verified SNP formation (430–460&#xa0;nm), following pseudo-first order reaction kinetics (K<sub>ap</sub> = 0.03839&#xa0;min<sup>− 1</sup>), with an average particle size of 81.3&#xa0;nm. The optimised PSTX-3 film exhibited excellent UV shielding (UV-A 99.78%, UV-B 99.83%). TEOS and SNP combination enhanced tensile strength from 18.31&#xa0;MPa (PS) to 38.28&#xa0;MPa (PSTX-3), while improving hydrophobicity (contact angle 110.66°), reducing water-vapour transmission (16.6 × 10<sup>− 8</sup> gm<sup>−2</sup>h<sup>− 1</sup>) and oxygen permeability (6.37 × 10<sup>− 6</sup> cc/m.24h.atm) and achieving 44.39% soil biodegradation after 60 days. PSTX-3 also demonstrated strong antimicrobial activity against <i>E. coli</i> (11.61&#xa0;mm), <i>S. aureus</i> (10.35&#xa0;mm), <i>C. albicans</i> (10.16&#xa0;mm), <i>B. subtilis</i> (9.65&#xa0;mm) and <i>P. aeruginosa</i> (10.48&#xa0;mm), together with notable antioxidant activity (46.43%) and cell viability (79.24%). During CB meat packaging, PSTX-3 effectively preserved sensory attributes while maintaining regulated drip loss (33.99%), minimal pH shift (5.92), low TVB-N release (12.35&#xa0;mg/100&#xa0;g) and TBARS formation (0.58&#xa0;mg MDA/kg). Total bacterial (2.8 log CFU/g) and psychrotrophic (2.4 log CFU/g) counts were markedly lower than those of polythene-packaged controls, indicating extended shelf life. These findings demonstrate that TEOS-crosslinked PVOH/SA-SNP nanocomposite films are cost-effective, sustainable alternatives to conventional plastic packaging with robust commercial potential for fresh poultry preservation prioritizing safety and sustainability.</p> Graphical Abstract <p></p>

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Development of Ortho Silicic acid Crosslinked Sodium Alginate/PVOH Blend Films Reinforced with Biosynthesised Silver Nanoparticles; Sustainable Approach for the Preservation of Chicken meat

  • 期刊论文

  • 发表日期：

    2026年8月5日

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  • Shiddalingesh G. Havanur,
  • Jennifer P. Pinto,
  • Priyadarshini,
  • Priyanka Baburao,
  • Bhagyalakshmi A. Sheeparamatti,
  • Ravindra B. Chougale,
  • Ajitkumar Appayya Hunashyal,
  • Saraswati P. Masti,
  • Basavaraj Neelappa Gonal,
  • Suresh B. Arakera

摘要

In this study, Polyvinyl alcohol (PVOH)/sodium alginate (SA) biodegradable blend films, crosslinked with tetraethyl orthosilicate (TEOS) and loaded with biosynthesised silver nanoparticles (SNPs), were developed for chicken breast (CB) meat packaging. FT-IR and XRD analyses confirmed intermolecular interactions among TEOS, SNPs and the PVOH/SA matrix, while SEM/EDS revealed uniform SNP dispersion. UV-Visible spectroscopy verified SNP formation (430–460 nm), following pseudo-first order reaction kinetics (Kap = 0.03839 min− 1), with an average particle size of 81.3 nm. The optimised PSTX-3 film exhibited excellent UV shielding (UV-A 99.78%, UV-B 99.83%). TEOS and SNP combination enhanced tensile strength from 18.31 MPa (PS) to 38.28 MPa (PSTX-3), while improving hydrophobicity (contact angle 110.66°), reducing water-vapour transmission (16.6 × 10− 8 gm−2h− 1) and oxygen permeability (6.37 × 10− 6 cc/m.24h.atm) and achieving 44.39% soil biodegradation after 60 days. PSTX-3 also demonstrated strong antimicrobial activity against E. coli (11.61 mm), S. aureus (10.35 mm), C. albicans (10.16 mm), B. subtilis (9.65 mm) and P. aeruginosa (10.48 mm), together with notable antioxidant activity (46.43%) and cell viability (79.24%). During CB meat packaging, PSTX-3 effectively preserved sensory attributes while maintaining regulated drip loss (33.99%), minimal pH shift (5.92), low TVB-N release (12.35 mg/100 g) and TBARS formation (0.58 mg MDA/kg). Total bacterial (2.8 log CFU/g) and psychrotrophic (2.4 log CFU/g) counts were markedly lower than those of polythene-packaged controls, indicating extended shelf life. These findings demonstrate that TEOS-crosslinked PVOH/SA-SNP nanocomposite films are cost-effective, sustainable alternatives to conventional plastic packaging with robust commercial potential for fresh poultry preservation prioritizing safety and sustainability.

Graphical Abstract