Submitted: 28 Jan 2017
Accepted: 07 Mar 2017
First published online: 30 Sep 2018
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Int J Basic Sci Med. 2018;3(3):104-108.
doi: 10.15171/ijbsm.2018.19
  Abstract View: 167
  PDF Download: 191

Brief report

Evaluation of Antibacterial and Antifungal Activity of Chitosan in Integument of Cockroaches

Hadi Shahraki 1, 2, Hamid Reza Basseri 1, Hadi Mirahmadi 2, 3 * ORCiD, Mehdi Fatahi Bafghi 4, Ahmad Mehravarn 2, 3, Payman Heidarian 5, Bahman Rahimi Esboei 6

1 Department of Medical Entomology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2 Infectious Diseases and Tropical Medicine Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
3 Department of Parasitology, Mycology, and Entomology, Faculty of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
4 Department of Medical Bacteriology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
5 Department of Medical Parasitology, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
6 Department of Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran

Abstract

Introduction: Due to drug resistance and toxic side effects observed following administration of many antibacterial drugs, novel strategies are highly needed for treatment of bacterial diseases. Chitosan, as an important immune system stimulator, is found in cockroaches that are living in contaminated sites. The aim of this study was to extract the chitosan from nymph and adult stage of both Blattella germanica and Periplaneta americana and to evaluate its antibacterial and antifungal activities.

Methods: The mature form of B. germanica and the nymph and adult forms of P. americana were killed by CO2 gas, and washed and dried at 60ºC. Then, they were mechanically ground in a mixer and passed through 20 mesh size. Finally, chitosan was extracted from shrimp processing discards. Chitosan was dissolved in lactic acid 1% and its effects against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Vibrio cholerae, methicillin-resistant S. aureus, Candida albicans, and Aspergillus were evaluated.

Results: Chitosan extracted from cockroaches showed antibacterial effects on gram-positive bacteria especially S. aureus and E. coli. However, it had no impact on fungi.

Conclusion: The findings of the current study revealed that chitosan had excellent antibacterial activities

Please cite this article as follows: Shahraki H, Basseri HR, Mirahmadi H, et al. Evaluation of antibacterial and antifungal activity of chitosan in integument of cockroaches. Int J Basic Sci Med. 2018;3(3):104- 108. doi:10.15171/ ijbms.2018.19.
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