Studying the effect bio-based sensorns packaging based on magnetic fields extraction of phycocyanin on the shelf life of fish fillets infected with Staphylococcus aureus
Year: 2025
Type: article
Abstract: Fish and seafood are highly perishable commodities, necessitating innovative packaging solutions to mitigate microbial spoilage and extend shelf life. This study developed a bioactive nanocomposite biosensor incorporating phycocyanin (PC) a pigment extracted from Neowestiellopsis persica and functionalized under 30 and 60 Millitesla (mT) magnetic fields (MF) coated with nanochitosan (NCT)- Sodium Alginate (SA). Reaults showed that MF exposure enhanced PC purity and concentration by 1.04- and 1.12-fold, respectively (p < 0.05), compared to non-MF controls. Agar disk diffusion assays revealed a 1.12-fold (30 mT) and 1.15-fold (60 mT) increase in antibacterial activity against Staphylococcus aureus. Films containing 2% PC (T4) extended shelf life by 8 days under refrigeration, reducing thiobarbituric acid (TBA) and total volatile nitrogen (TVN) levels to 18.85 ± 0.39 mg MDA/kg and < 30 mg/100 g, respectively, over 15 days. Furthermore, T4 significantly suppressed microbial proliferation relative to lower-concentration treatments and controls (p < 0.05). These results demonstrate that MF-enhanced, 2% PC nanocomposites provide a sustainable, biodegradable solution for seafood preservation, effectively delaying spoilage and advancing innovative packaging technologies.
Source: BMC Microbiology
Authors: Bahareh Nowruzi, Mahshid Ghorbani, Maryam Ghane, Mahrokh Ashrafizadeh, Rojan Barandak, Melika Targholizadeh
Language: English
Subfield: Biomaterials
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,990
OpenAlex ID: W4409988285