scholarly journals Cucumber Seed Oil

2020 ◽  
Author(s):  
Keyword(s):  
Seed Oil ◽  
2020 ◽  
Vol 57 (4) ◽  
pp. 1149-1156
Author(s):  
Jun-Hyung Tak ◽  
Quentin Robert Renaud Coquerel ◽  
Maia Tsikolia ◽  
Ulrich R Bernier ◽  
Kenneth Linthicum ◽  
...  

Abstract Aedes aegypti L. (Diptera: Culicidae) is one of the most medically important mosquito species, due to its ability to spread viruses of yellow fever, dengue fever, and Zika in humans. In this study, the insecticidal activity of 17 plant essential oils was evaluated via topical application against two strains of Ae. aegypti mosquito, Orlando (insecticide-susceptible) and Puerto Rico (pyrethroid-resistant). Initial screens with the Orlando strain showed that cucumber seed oil (2017 sample) was the most toxic, followed by sandalwood and thyme oil. When the essential oils were mixed with permethrin, they failed to show any significant synergism of insecticidal activity. Sandalwood and thyme oils displayed consistently high mortality against the resistant Puerto Rico strain, with low resistance ratios of 2.1 and 1.4, respectively. In contrast, cucumber seed oil showed significantly less activity against Puerto Rico mosquitoes, with a resistance ratio of 45. Bioactivity-guided fractionation of the 2017 sample of cucumber seed oil sample via flash column chromatography produced 11 fractions, and gas-chromatography/mass spectrometry analysis revealed that the three active fractions were contaminated with 0.33, 0.36, and 0.33% of chlorpyrifos-methyl, an organophosphorus insecticide, whereas inactive fractions did not show any trace of it. These results suggested that the insecticidal activity of cucumber seed oil was probably due to the presence of the insecticide, later confirmed with a clean batch of cucumber seed oil obtained in 2018, which showed negligible insecticidal activity. These findings demonstrate clearly the need for essential oil analysis to confirm purity before any claims are made about pesticidal potency.


1880 ◽  
Vol 10 (243supp) ◽  
pp. 3874-3874
Author(s):  
Benjamin Nickels

Planta Medica ◽  
2015 ◽  
Vol 81 (05) ◽  
Author(s):  
V Shulaev ◽  
MD Jones ◽  
D Sturtevant ◽  
PJ Horn ◽  
J Crossley ◽  
...  

2010 ◽  
Vol 13 (3) ◽  
pp. 29-38
Author(s):  
Ha Bich Phan ◽  
Thach Ngoc Le

Coriandrum sativum L. belongs to the Apiaceae family, which is cultivated in Dong Nai province, in this paper its seed oil of was studied. The essential oil was extracted by hydrodistillation. We used two methods for activating of hydrodistillation: conventional heating and microwave irradiating. Its physical and chemical indexes were measured. The chemical composition of this oil was identified by GC/MS and quantified by GC/FID. Linalool (75.51-77.21 %), and geranyl acetate (15.64-12.79 %) were the main constituents of the oil which were obtained in 0,32-0.39 % yield. The biological activity of this oil was reported.


2018 ◽  
Author(s):  
Jilse Sebastian ◽  
Vishnu Vardhan Reddy Mugi ◽  
C. Muraleedharan ◽  
Santhiagu A
Keyword(s):  
Seed Oil ◽  

Author(s):  
N.A. Engalycheva ◽  
◽  
J.I. Engalychev ◽  
K.L. Alekseeva ◽  
M.I. Ivanova ◽  
...  
Keyword(s):  

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