Antimicrobial Activity of Three Insect Species, Crude Extracts Againts Certain Microbial Agents.

Antimicrobial Activities of Thirteen Insect Species Crude Body Extract Against Some Microbial Pathogens.

“…Antibacterial activities of American cockroach crude body extract against both Staphylococcus aureus and Escherichia coli were observed, it is in agreement with some studies which recorded antibacterial activities against Staphylococcus aureus and Escherichia coli in the crude brain extract (Ali et al, 2017, Ali et al, 2021 and the hemolymph (Hussein Al-Hindera and Hamoudi, 2020) of the American cockroach. Our results clarify that Candida albicans was not inhibited by crude body extracts of all selected insect species; this result was inconsistent with the effect of crude body extracts of several insect species against Candida albicans (Cytryńska et al, 2007, HASSAN et al, 2015, Ma et al, 2019. However, it disagreed with some studies which found that some insect species' body extracts have antifungal activities against Candida albicans (Leem et al, 1999, Yamada andNatori, 1994).…”

“…Oriental hornet crude body extracted by methanol observed to has antibacterial activities against both Staphylococcus aureus and Escherichia coli (HASSAN et al, 2015), same research observed antimicrobial activity of locust crude body extract against Staphylococcus aureus, while there was no antibacterial activity against Escherichia coli, as recorded in the present study. Abdu-Allah et al, (2019) observed antimicrobial activities of honeybee worker crude body extracts against Staphylococcus aureus and Escherichia coli however, in our study, antibacterial activity against Escherichia coli was not observed, same research observed antibacterial activities of ladybird crude body extract against both Staphylococcus aureus and Escherichia coli, as was recorded in our results.…”

“…This result was supported by other studies, as undertaken by Ma et al (2019) eleven insect species body extracts were tested against different microbial pathogens, three of them had antibacterial activities, while none of them had antifungal activities (Ma et al, 2019) and this supported our results for not observing any antifungal activity. Another study observed that crude body extracts by methanol of three insect species had antibacterial activities but no antifungal activity against Candida albicans (HASSAN et al, 2015).…”

“…Most insect AMPs are small and cationic, and they show activities against bacteria and/or fungi, as well as some parasites and viruses (Tonk andVilcinskas, 2017, Wu et al, 2018). Several studies have discovered that crude body and brain extract from some insects has potential antimicrobial activity against multidrug-resistant pathogens, which could be a new source of novel antibiotics (Ali et al, 2017, HASSAN et al, 2015, Ma et al, 2019, Mosaheb et al, 2018, Sagar and JayaPrada, 2015. Kurdistan and Iraq have a rich biodiversity of insects without sufficient work on them regarding extracting active antimicrobial compounds, which will be possible to discover new types and sources of antibiotics.…”

Assessment an antibacterial activity of crud bodies, Ailolopus thaiossinus (Orthoptera) and Polistes watti larvae (Hymenoptera) by extracted cold and boiled solvents

“…aureus and K. pneumoniae, but more folded against E coli and meaningful activity to P. auroginosa. Experimentally, in the present study had been firstly obtained positive results by boiled methanol extracts of the body insects or insect materials with satisfied antibacterial activity in relation to known standard drugs and former studies used cold extracts [28,29,30,14] . In comparison between clear zones of the treated bacteria by boiled and cold extracts (fig 3); high significantly different for boiled A. thalassinus than P. wattii methanol extracts, and on the other side, cold wasp larvae extract was appeared significant inhibition than that of the grass hopper extract (fig.…”