Efficacy of trans-cinnamaldehyde against Psoroptes cuniculi in vitro.

Parasitology Research
Fengge ShenLu Yu

Abstract

The acaricidal activity of trans-cinnamaldehyde was evaluated in vitro on Psoroptes cuniculi. In this study, different concentrations of trans-cinnamaldehyde were tested, and the observed mites mortality was compared with that observed in untreated and treated (Acacerulen R®) controls. The morphological changes in P. cuniculi treated with trans-cinnamaldehyde were examined with light microscopy. By the analysis of variance one-way test, up to 8 μg/ml of trans-cinnamaldehyde gave highly significant (P < 0.01) percentages of mite mortality compared with the untreated controls, but only up to 256 μg/ml, it showed the same efficacy of Acacerulen R®. At the same time, a bioassay was conducted by exposing mites to varying doses of trans-cinnamaldehyde in vitro cultures. The resulting data were analyzed by using a time-dose-mortality modeling technique, yielding the parameters for time and dose effects of P. cuniculi. The β value was 2.01, indicating that trans-cinnamaldehyde had a good activity to kill P. cuniculi adults. Based on the time-dose-mortality relationships fitted and the virulence indices estimated, trans-cinnamaldehyde is a promising microbial agent for mites control.

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Citations

Jul 30, 2014·Parasite Immunology·E J MarrS T G Burgess
Jul 16, 2016·Biomedit︠s︡inskai︠a︡ khimii︠a︡·N N BesednovaT S Zaporozhets
Aug 31, 2017·Experimental & Applied Acarology·Daiane S Dos SantosAleksandro S Da Silva
May 29, 2018·Environmental Science and Pollution Research International·Yang WangShu-Shan Du

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