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Activity of Syzygium aromaticum essential oil and its main constituent eugenol in the inhibition of the development of Ctenocephalides felis felis and the control of adults.
Veterinary Parasitology ( IF 2.6 ) Pub Date : 2020-05-12 , DOI: 10.1016/j.vetpar.2020.109126
Monique Moraes Lambert 1 , Diefrey Ribeiro Campos 1 , Debora Azevedo Borges 1 , Barbara Rauta de Avelar 1 , Thais Paes Ferreira 1 , Yara Peluso Cid 2 , Fábio Boylan 3 , Fabio Barbour Scott 1 , Douglas Siqueira de Almeida Chaves 2 , Katherina Coumendouros 1
Affiliation  

The aim of this study was to evaluate the in vitro activity of Syzygium aromaticum essential oil (SAEO) and its main constituent eugenol (EG) against adult fleas and their action in the maturation of eggs into adults of Ctenocephalides felis felis. In order to evaluate the pulicidal activity, 10 adult fleas were exposed to a filter paper impregnated with SAEO and EG at increasing concentrations of 0.047; 0.094; 0.188; 0.375; 0.750; 1.50; 3.00; 6.00; 12.00 and 24.00 μg cm-2. Flea mortality was evaluated 24 and 48 h after exposure. In order to evaluate the inhibition of the maturation of eggs into adults, 10 eggs were exposed to filter paper impregnated with SAEO and EG at the same concentrations used in the pulicidal test, and the evaluation was performed 30 days after incubation. Untreated repetitions were maintained in both studies (control group). The lethal concentration 50 (LC50) of pulicidal activity to SAEO was 5.70 μg cm-2 in 24 h and 3.91 μg cm-2 in 48 h. The LC90 was 16.10 μg cm-2 and 15.80 μg cm-2 in 24 and 48 h, respectively. The LC50 of inhibition of the maturation of eggs into adults was 0.30 μg cm-2 and the LC90 3.44 μg cm-2. The LC50 of pulicidal activity to EG was 2.40 μg cm-2 in 24 h and 1.40 μg cm-2 in 48 h; the LC90 was 8.10 μg cm-2 and 3.70 μg cm-2 in 24 h and 48 h, respectively. The LC50 of inhibition of the maturation of eggs into adults was 0.10 μg cm-2 and the LC90 0.68 μg cm-2. Based on the results obtained, it is possible to conclude that the both SAEO and EG have in vitro pulicidal activity as well as acting as inhibitors of the maturation of eggs into adults of the flea C. felis felis.

中文翻译:

芳香丁香精油及其主要成分丁子香酚的活性可抑制猫屎脑炎的发展并控制成人。

这项研究的目的是评估芳香丁香精油(SAEO)及其主要成分丁子香酚(EG)对成年跳蚤的体外活性,以及​​它们在卵成年后成虫中的作用。为了评估杀螨活性,将10只成年跳蚤暴露于浸渍有SAEO和EG的滤纸,浓度为0.047;0.094;0.188;0.375;0.750;1.50; 3.00; 6.00; 12.00和24.00μgcm-2。暴露后24和48小时评估跳蚤死亡率。为了评估对成虫卵成熟的抑制作用,将10个卵暴露于浸渍于SAEO和EG的滤纸中,滤纸的浓度与杀灭性杀虫剂的浓度相同,并在孵化30天后进行评估。两项研究均保持未经治疗的重复(对照组)。对SAEO的杀灭活性的致死浓度50(LC50)在24小时内为5.70μgcm-2,在48小时内为3.91μgcm-2。LC90在24小时和48小时内分别为16.10μgcm-2和15.80μgcm-2。抑制卵成熟成虫的LC50为0.30μgcm-2,LC90为3.44μgcm-2。对EG的杀虫活性LC50在24小时内为2.40μgcm-2,在48小时内为1.40μgcm-2。LC90在24小时和48小时内分别为8.10μgcm-2和3.70μgcm-2。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。对SAEO的杀灭活性的致死浓度50(LC50)在24小时内为5.70μgcm-2,在48小时内为3.91μgcm-2。LC90在24小时和48小时内分别为16.10μgcm-2和15.80μgcm-2。抑制卵成熟成虫的LC50为0.30μgcm-2,LC90为3.44μgcm-2。对EG的杀虫活性LC50在24小时内为2.40μgcm-2,在48小时内为1.40μgcm-2。LC90在24小时和48小时分别为8.10μgcm-2和3.70μgcm-2。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。对SAEO的杀灭活性的致死浓度50(LC50)在24小时内为5.70μgcm-2,在48小时内为3.91μgcm-2。LC90在24小时和48小时内分别为16.10μgcm-2和15.80μgcm-2。抑制卵成熟成虫的LC50为0.30μgcm-2,LC90为3.44μgcm-2。对EG的杀虫活性LC50在24小时内为2.40μgcm-2,在48小时内为1.40μgcm-2。LC90在24小时和48小时内分别为8.10μgcm-2和3.70μgcm-2。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。在24小时内达到70μgcm-2,在48小时内达到3.91μgcm-2。LC90在24小时和48小时内分别为16.10μgcm-2和15.80μgcm-2。抑制卵成熟成虫的LC50为0.30μgcm-2,LC90为3.44μgcm-2。对EG的杀虫活性LC50在24小时内为2.40μgcm-2,在48小时内为1.40μgcm-2。LC90在24小时和48小时分别为8.10μgcm-2和3.70μgcm-2。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。在24小时内达到70μgcm-2,在48小时内达到3.91μgcm-2。LC90在24小时和48小时内分别为16.10μgcm-2和15.80μgcm-2。抑制卵成熟成虫的LC50为0.30μgcm-2,LC90为3.44μgcm-2。对EG的杀灭活性LC50在24小时内为2.40μgcm-2,在48小时内为1.40μgcm-2。LC90在24小时和48小时分别为8.10μgcm-2和3.70μgcm-2。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。抑制卵成熟成虫的LC50为0.30μgcm-2,LC90为3.44μgcm-2。对EG的杀虫活性LC50在24小时内为2.40μgcm-2,在48小时内为1.40μgcm-2。LC90在24小时和48小时内分别为8.10μgcm-2和3.70μgcm-2。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。抑制卵成熟成虫的LC50为0.30μgcm-2,LC90为3.44μgcm-2。对EG的杀虫活性LC50在24小时内为2.40μgcm-2,在48小时内为1.40μgcm-2。LC90在24小时和48小时分别为8.10μgcm-2和3.70μgcm-2。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。抑制成虫卵成熟的LC50为0.10μgcm-2,LC90为0.68μgcm-2。根据获得的结果,有可能得出结论,SAEO和EG都具有体外杀菌活性,并作为跳蚤成虫的成虫卵成熟的抑制剂。
更新日期:2020-05-12
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