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New Isolated Shrimp () Chitosan-Based Films Loaded with Fly Ash for Antibacterial Evaluation. | LitMetric

New Isolated Shrimp () Chitosan-Based Films Loaded with Fly Ash for Antibacterial Evaluation.

Polymers (Basel)

Department of Organic Chemistry, College of Science, King Saud University, P.O. Box 50013, Riyadh 11523, Saudi Arabia.

Published: May 2022

AI Article Synopsis

  • The study developed three types of chitosan films incorporated with fly ash, using shrimp shell waste to extract chitosan through a multi-step deacetylation process, resulting in a high degree of deacetylation at 95.2%.
  • These films were prepared with varying fly ash to chitosan ratios and characterized through techniques like FTIR, XRD, and SEM, showing spherical particles of about 10 µm and demonstrating various impressive properties like thermal stability up to 284.9 °C and excellent binding capabilities for water and fat.
  • Antibacterial tests revealed that the chitosan films exhibited significant inhibition against both Gram-negative and Gram-positive bacteria, showcasing the potential for using waste-derived chitosan

Article Abstract

New three fabricated chitosan (CS) loaded with fly ash (FA) films were developed in this study. The shell waste of white shrimp was used as a precursor for the isolation of chitin and converted into chitosan by carrying out a deacetylation process. The formation of chitosan was conducted by various preparation steps deproteinization, demineralization, and deacetylation. The degree of deacetylation was found to be 95.2%. The obtained chitosan was used to prepare three different chitosan loaded-fly ash films. The prepared films contained various fly ash: chitosan ratios (2:1, FA-CSF1), (1:1, FA-CSF2), and (1:2, FA-CSF3). The obtained films were characterized using FTIR, XRD, and SEM. The micrograph images of the formed films showed spherical particles with an average size of 10 µm. The surface area, adsorption-desorption properties, thermal stability, and water/fat binding features of the fabricated chitosan films were studied. The results revealed that the prepared films displayed typical BET graphs with surface areas ranging from 2.436 m g to 8.490 m g. The fabricated FA-CSF films also showed high thermal stability at temperatures up to 284.9 °C and excellent water/fat binding capacities. The antibacterial potential of the designed films was screened against (Gram-negative) and (Gram-positive) bacterial strains. The tested solution of CS (1%) exhibited inhibition zones for and as 18.51 mm and 14.81 mm, respectively, while in FA solution (1%), the inhibition zones were found to be 10.16 mm, and 13.57 mm, respectively. The results encourage and open up the new and promising areas of research for applying chitosan extracted from waste materials in biological applications.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9147801PMC
http://dx.doi.org/10.3390/polym14102099DOI Listing

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