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Antimicrobial textile treated with chitosan from Aspergillus niger mycelial waste |
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| Authors: | Tayel Ahmed A Moussa Shaaban H El-Tras Wael F Elguindy Nihal M Opwis Klaus |
| Institution: | a Genetic Engineering and Biotechnology Research Institute, Minoufiya University, El-Sadat City, Egypt b Department of Hygiene and Preventive Medicine (Zoonoses), Faculty of Veterinary Medicine, Kafrelsheikh University, Egypt c Department of Biochemistry, Faculty of Science, Alexandria University, Egypt d DTNW - Deutsches Textilforschungszentrum Nord-West e.V. Institut an der, Universität Duisburg, Essen, Krefeld, Germany |
| Abstract: | The waste biomass of Aspergillus niger, following citric acid production, was used as a source for fungal chitosan extraction. The produced chitosan was characterized with deacetylation degree of 89.6%, a molecular weight of 25,000 dalton, 97% solubility in 1% acetic acid solution and comparable FT-IR spectra to standard shrimp chitosan. Fungal chitosan was applied as a cotton fabric finishing agent using pad-dry-cure method. The topographical structure of chitosan-treated fabrics (CTF) was much improved compared with control fabrics. CTF, after durability tests, exhibited a powerful antimicrobial activity against both E. coli and Candida albicans, the captured micrographs for E. coli cells contacted with CTF showed a complete lysis of cell walls with the prolonging contact time. The produced antimicrobial CTF could be proposed as a suitable material for many medical and hygienic applications. |
| Keywords: | Antibacterial action Citric acid bio-waste Cotton fabric Finishing Fungal chitosan Textile topography |
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