Smart biodegradable films based on chitosan/methylcellulose containing Phyllanthus reticulatus anthocyanin for monitoring the freshness of fish fillet.

Autor: Gasti T; Department of Studies in Chemistry, Karnatak University Dharwad, India., Dixit S; Department of Biotechnology, Karnatak University, Dharwad, India., D'souza OJ; Department of Studies in Chemistry, Karnatak University Dharwad, India., Hiremani VD; Department of Studies in Chemistry, Karnatak University Dharwad, India., Vootla SK; Department of Biotechnology, Karnatak University, Dharwad, India., Masti SP; Department of Chemistry, Karnatak Science College, Dharwad, India., Chougale RB; Department of Studies in Chemistry, Karnatak University Dharwad, India. Electronic address: chougaleravindra@yahoo.com., Malabadi RB; Department of Applied Botany, Mangalore University, Mangalagangothri, India.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2021 Sep 30; Vol. 187, pp. 451-461. Date of Electronic Publication: 2021 Jul 27.
DOI: 10.1016/j.ijbiomac.2021.07.128
Abstrakt: The current work aims to prepare biologically active and pH responsive smart films based on Chitosan (CS)/Methylcellulose (MC) matrix integrated with Phyllanthus reticulatus (PR) ripen fruit anthocyanin. The prepared smart films (CMPR) were fabricated through a cost-effective solvent casting technique. The existences of secondary interactions were confirmed by the FT-IR analysis. The smooth SEM images revealed the miscibility and compatibility of the CS/MC matrix with PR anthocyanin. The incorporation of PR anthocyanin significantly blocked the UV light transmission of the CS/MC films while slight decrease in the transparency was observed. The water solubility, moisture retention capacity, and water vapor transmission rate were significantly enhanced with an increase in the PR anthocyanin content. Additionally, the prepared CMPR smart films showed pink color in acidic pH while yellowish in basic pH solution and further exhibited strong antioxidant activity as well as antibacterial activity against the common foodborne pathogens such as S. aureus, P. aeruginosa, and E. coli. The CMPR smart film also displayed potential result for monitoring the fish fillet freshness at room temperature. The results proclaim that the prepared CMPR smart films could be utilized for quality assurance as well as shelf life extension of the marine food products.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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