Green extract surface-coated electrospun cellulose nanofibers as an efficient, reversible, and reusable smart colorimetric sensor for real-time monitoring of chicken freshness
Muhammad Asim Iqbal , Sabeen Gohar , Yoshinori Yabuta , Liang Fanghua , Wang Ling , Muhammad Farooq , Muhammad Nauman Sarwar , Gopiraman Mayakrishnan , Ick Soo Kim
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引用次数: 0
Abstract
Smart colorimetric sensor for the naked-eye detection of food freshness is considered as the most attractive tool in food safety. Herein, we prepared curcumin (CUR) coated electrospun regenerated cellulose nanofiber (RCA) composites (CUR-Cot), to monitor the real-time spoilage of raw chicken. The physicochemical properties of the CUR-Cot sensor were completely studied. The surface modification, morphology, crystalline nature, and thermal stability of CUR-Cot were investigated by using various spectral, analytical, and microscopic techniques. Based on the results, the successful coating of CUR on the surface of RCA was confirmed. Interestingly, the CUR-Cot showed a significant change in total color difference value (ΔE, 0 days − 0.0–14.93, after 1 day – 14.93–23.64, after 2 days – 23.64–44.78, after 3 days- 44.78–55.22, and after 4 days – 55.22–60.96, detectable by the naked eye) in the real-time monitoring for chicken freshness. In addition, the present CUR-Cot smart colorimetric sensor is reversible with change in pH, and the reversed sensor can be reused. Furthermore, the hydrophobic nature of the CUR-Cot was confirmed by water contact angle analysis (WCA, contact angle of 90 ± 3.00), which increases its application and adaptability. Good antibacterial, barrier, and optical properties of the present CUR-Cot were also found. Overall, the results confirm that the usage of CUR-Cot sensor can be highly efficient, user-friendly, and non-destructive for the real-time monitoring of chicken freshness.
期刊介绍:
Current Research in Biotechnology (CRBIOT) is a new primary research, gold open access journal from Elsevier. CRBIOT publishes original papers, reviews, and short communications (including viewpoints and perspectives) resulting from research in biotechnology and biotech-associated disciplines.
Current Research in Biotechnology is a peer-reviewed gold open access (OA) journal and upon acceptance all articles are permanently and freely available. It is a companion to the highly regarded review journal Current Opinion in Biotechnology (2018 CiteScore 8.450) and is part of the Current Opinion and Research (CO+RE) suite of journals. All CO+RE journals leverage the Current Opinion legacy-of editorial excellence, high-impact, and global reach-to ensure they are a widely read resource that is integral to scientists' workflow.