Antibacterial/Antifungal Activity of Extracted Chitosan From American Cockroach (Dictyoptera: Blattidae) and German Cockroach (Blattodea: Blattellidae)
| Autor: | Sayed Jamal Hashemi, Hamidreza Basseri, Ronak Bakhtiyari, Hadi Shahraki, Laila Hosainpour, Mojgan Baniardelani |
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| Rok vydání: | 2018 |
| Předmět: |
Nymph
animal structures Antifungal Agents Chitin macromolecular substances 02 engineering and technology 03 medical and health sciences chemistry.chemical_compound Blattodea immune system diseases biology.animal Animals Periplaneta Food science 030304 developmental biology 0303 health sciences German cockroach Cockroach Chitosan General Veterinary biology Blattidae Dictyoptera Blattellidae 021001 nanoscience & nanotechnology biology.organism_classification respiratory tract diseases Anti-Bacterial Agents carbohydrates (lipids) Infectious Diseases chemistry Insect Science Parasitology American cockroach 0210 nano-technology |
| Zdroj: | Journal of medical entomology. 56(5) |
| ISSN: | 1938-2928 |
| Popis: | We investigated bactericidal and fungicidal properties of chitosan extracted from adults and nymphs from both German cockroach, Blattella germanica (Blattodea: Blattellidae) and American cockroach, Periplaneta americana (Dictyoptera: Blattidae). The cuticle of adults and nymphs extracted from both cockroaches were dried and ground. The powders were demineralized and deproteinized followed by deacetylation using NaOH. Finally, the chitosan yields were examined for antibacterial and antifungal activities. The degree of deacetylation (DD) was different between adults and nymph stages. The antimicrobial effect of American cockroach chitosan (ACC) and German cockroach chitosan (GCC) was tested against four bacteria and four fungi. The extracted chitosans from American cockroach, Periplaneta americana and German Cockroach, Blattella germanica suppressed the growth of Gram-negative/positive bacteria except Micrococcus luteus. The growth of Aspergillus flavus and Aspergillus niger were notability inhibited by the extracted chitosans. The antimicrobial effect of the chitosan depended on the cockroach species, with chitosan of the American cockroach showing more inhibitory effect. This difference may be due to differences in the structure of chitin between the two cockroach species. |
| Databáze: | OpenAIRE |
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