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.

IF 4 2区生物学 Q2 MICROBIOLOGY

BMC Microbiology Pub Date : 2025-05-02 DOI:10.1186/s12866-025-03975-9

Bahareh Nowruzi, Mahshid Ghorbani, Maryam Ghane, Mahrokh Ashrafizadeh, Rojan Barandak, Melika Targholizadeh

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引用次数: 0

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.

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研究基于磁场提取藻蓝蛋白的生物传感器包装对金黄色葡萄球菌感染鱼片保质期的影响。

鱼和海鲜是高度易腐的商品，需要创新的包装解决方案，以减轻微生物腐败和延长保质期。研究了一种生物活性的纳米复合生物传感器，其中藻蓝蛋白（PC）是一种从新褐藻中提取的色素，在30和60毫特拉（mT）磁场（MF）下被纳米壳聚糖(NCT)-海藻酸钠（SA）包裹。结果表明，MF暴露使PC的纯度和浓度分别提高1.04倍和1.12倍(p

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来源期刊

BMC Microbiology 生物-微生物学

CiteScore

7.20

自引率

0.00%

发文量

280

审稿时长

3 months

期刊介绍： BMC Microbiology is an open access, peer-reviewed journal that considers articles on analytical and functional studies of prokaryotic and eukaryotic microorganisms, viruses and small parasites, as well as host and therapeutic responses to them and their interaction with the environment.