کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1987272 | 1540281 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Antimicrobial textile treated with chitosan from Aspergillus niger mycelial waste Antimicrobial textile treated with chitosan from Aspergillus niger mycelial waste](/preview/png/1987272.png)
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.
Journal: International Journal of Biological Macromolecules - Volume 49, Issue 2, 1 August 2011, Pages 241–245