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In-vitro antigiardial activity and GC-MS analysis of Eucalyptus globulus and Zingiber officinalis essential oils against Giardia lamblia cysts in simulated condition to human’s body

100%

Dehghani-Samani A., Madreseh-Ghahfarokhi S., Dehghani-Samani A., Pirali Y.

Annals of Parasitology

2019

tom 65

nr 2

In order to finding of potent natural medication/agent which can kill giardial cysts in the interval between lysing of outer membrane of cysts due to exposure by acidic condition of stomach and their encystation in proximal small intestine, In-vitro antigiardial activity and GC-MS analysis of Eucalyptus globulus and Zingiber officinalis against Giardia lamblia were studied in simulated condition to human’s body singly and in combination. Essential oils were extracted and their chemical components were identified via GC-MS method. After purification, cysts were exposure to acidic condition and were challenged by different concentrations of essential oils in simulated condition to human’s body. Percentages of inactivated (killed) cysts as efficacy of antigiardial activity were calculated and analyzed statistically. Presence of 1,8-eucalyptol, α-pinene, α-terpineol acetate, etc. in essential oil of E. globulus and presence of geraniol, α-zingiberene, (E,E)-α-farnesene, etc. in Z. officinalis essential oil were identified. Highest antigiardial activity (73.55%) was observed for eucalyptus essential oil in time 480 minutes after exposure. Efficacies of ginger and combined essential oils were different in different times. This study shows considerable antigiardial activity for both of essential oils singly and in combination together against giardial cysts. In-vivo study of protective effect of these essential oils against giardiasis can be considered as a subject for next studies.

The insecticidal and repellent activity of ginger (Zingiber officinale) and eucalyptus (Eucalyptus globulus) essential oils against Culex theileri Theobald, 1903 (Diptera: Culicidae)

100%

Madreseh-Ghahfarokhi S., Pirali Y., Dehghani-Samani A., Dehghani-Samani A.

Annals of Parasitology

2018

tom 64

nr 4

Insecticidal and repellent activity of essential oils of Zingiber officinale and Eucalyptus globulus against Culex theileri Theobald, 1903 as a wide-distributed species of mosquitoes in different parts of world with an important role in transmission of infectious organisms and agent were studied. Essential oils were extracted from fresh parts of plants and different concentrations of 250 μl/ml, 500 μl/ml, 750 μl/ml and 1 (undiluted extract) were prepared for each of essential oils. Insecticidal and repellent activity of essential oils against adult form of Culex theileri Theobald mosquitoes, collected from small pools located near the Zayande-Rood River in the Saman city, Iran, were examined via direct exposure method and Y-tube olfactometer bioassay, respectively. Results of current study, as the first study on insecticidal and repellent activity of mentioned essential oils against Culex theileri Theobald, show considerable values of insecticidal and repellent activity against mosquitoes, concentration of one (undiluted extract) had the highest insecticidal and repellent activity against Culex theileri Theobald for both of essential oils and essential oil of Eucalyptus globulus (66% insecticidal and 74% repellent activity) was more potent than Zingiber officinale (45% insecticidal and 61% repellent activity). This study shows that these essential oils can be considered as good replaces for chemical pesticides but more experiments are need for this purpose. Study on insecticidal activity of these essential oils in the field condition can be considered as a subject for next experiments.

Ograniczanie wyników

2 Annals of Parasitology

2 Dehghani-Samani A.

2 Madreseh-Ghahfarokhi S.

2 Pirali Y.

1 2019

1 2018

Wyniki wyszukiwania

In-vitro antigiardial activity and GC-MS analysis of Eucalyptus globulus and Zingiber officinalis essential oils against Giardia lamblia cysts in simulated condition to human’s body

The insecticidal and repellent activity of ginger (Zingiber officinale) and eucalyptus (Eucalyptus globulus) essential oils against Culex theileri Theobald, 1903 (Diptera: Culicidae)