Research Article | Volume: 6, Issue: 12, December, 2016

Exposure of chitosan to UV/ozone: Structural information and antibacterial activity

Osiris W. Guirguis Gehan T. El-Bassyouni Mona A. Esawy Nada R. Abd Elkader Hadeer M. Mahmoud Hend M. Mostafa Nabawia A. Abdel-Zaher   

Open Access   

Published:  Dec 28, 2016

DOI: 10.7324/JAPS.2016.601217

In the present work, variation in the group coordination of chitosan due to the exposure to UV/ozone was considered by the FTIR reflectance. Pronounced variations in the intensities of reflectance bands and shifts in their positions were detected. This could be attributed to the change in the molecular configuration of chitosan. On the other hand, the well diffusion method was used to investigate the anti-bactericidal activities against two common bacterial strains Bacillus subtitles (B. subtilis) and Escherichia coli (E. coli)] by detecting the mean inhibition zone diameters (IZD) against the microorganisms. The achieved data revealed that the chitosan exposed to UV/ozone confirmed a high potential of antibacterial activity.

Keyword:     Chitosan Structural information FTIR Antibacterial activity UV/ozone treatment.


Guirguis OW, El-Bassyouni GT, Esawy MA, Elkader NRA, Mahmoud HM, Mostafa HM, Abdel-Zaher NA., Exposure of chitosan to UV/ozone: Structural information and antibacterial activity. J App Pharm Sci, 2016; 6 (12): 124-130.

Copyright:The Author(s). This is an open access article distributed under the Creative Commons Attribution Non-Commercial License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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