Determination and seasonal variation of chemical constituents of essential oil of Hyssopus officinalis growing in Kashmir valley as incorporated species of Western Himalaya

2012 ◽  
Vol 48 (3) ◽  
pp. 502-505 ◽  
Author(s):  
Reehana Khan ◽  
Abdul S. Shawl ◽  
Mudasir A. Tantry
2017 ◽  
Vol 14 (3) ◽  
pp. 1025-1031 ◽  
Author(s):  
Tawheed Amin ◽  
H. R. Naik ◽  
Syed Zameer Hussain

ABSTRACT: The Aim of the Present Study Was to Evaluate the Yield, Chemical Constituents and Determine the Chemotype of the Essential Oil Obtained from Different Rosemary Plants Growing in Different Accessions of Rosemary Fields. About four Plant Samples Were Analyzed for Essential Oil Yield and the Essential Oil Yield Varied from 0.88% To 1.2%. the Essential Oil Samples Were Further Analyzed by Gas Chromatography (GC) for the Purpose of Identification of Chemical Constituents Present in Them. It Was Contended from the Results That the Selected Plants Differed from Each Other in Terms of Chemical Constituents.Camphor Content Was Foundin Higher Amount in All the Foursamples, Thus it Could Be Inferred That the Plants Are Camphor Chemotype.


2015 ◽  
Vol 27 (5) ◽  
pp. 406-411 ◽  
Author(s):  
Rajkesh Koundal ◽  
Ashish Kumar ◽  
Soni Thakur ◽  
Vijai K. Agnihotri ◽  
Gopi Chand ◽  
...  

2015 ◽  
Vol 10 (1) ◽  
pp. 1934578X1501000 ◽  
Author(s):  
Iris Stappen ◽  
Jürgen Wanner ◽  
Nurhayat Tabanca ◽  
David E. Wedge ◽  
Abbas Ali ◽  
...  

The essential oils of two representatives of the Lamiaceae, Dracocephalum heterophyllum Benth. and Hyssopus officinalis L., are described for their antifungal, antibacterial, larvicidal and inect biting deterrent activities. Additionally, the chemical compositions of the essential oils, analyzed by simultaneous GC-MS and GC-FID, and odor descriptions are given. The main components of H. officinalis oil were pinocarvone, cis-pinocamphone, and β-pinene. Citronellol was found as the main compound of D. heterophyllum essential oil. Antibacterial testing by agar dilution assay revealed greater activity of D. heterophyllum against Staphylococcus aureus compared with H. officinalis. D. heterophyllum essential oil also showed promising antifungal activity against Colletotrichum species and was more toxic to Aedes aegypti larvae in a larvicial bioassay. Both essential oils showed high activity in the biting deterrent bioassay.


Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4608
Author(s):  
Eduardo Valarezo ◽  
Génesis Gaona-Granda ◽  
Vladimir Morocho ◽  
Luis Cartuche ◽  
James Calva ◽  
...  

Croton ferrugineus Kunth is an endemic species of Ecuador used in traditional medicine both for wound healing and as an antiseptic. In this study, fresh Croton ferrugineus leaves were collected and subjected to hydrodistillation for extraction of the essential oil. The chemical composition of the essential oil was determined by gas chromatography equipped with a flame ionization detector and gas chromatography coupled to a mass spectrometer using a non-polar and a polar chromatographic column. The antibacterial activity was assayed against three Gram-positive bacteria, one Gram-negative bacterium and one dermatophyte fungus. The radical scavenging properties of the essential oil was evaluated by means of DPPH and ABTS assays. The chemical analysis allowed us to identify thirty-five compounds representing more than 99.95% of the total composition. Aliphatic sesquiterpene hydrocarbon trans-caryophyllene was the main constituent with 20.47 ± 1.25%. Other main compounds were myrcene (11.47 ± 1.56%), β-phellandrene (10.55 ± 0.02%), germacrene D (7.60 ± 0.60%), and α-humulene (5.49 ± 0.38%). The essential oil from Croton ferrugineus presented moderate activity against Candida albicans (ATCC 10231) with an MIC of 1000 μg/mL, a scavenging capacity SC50 of 901 ± 20 µg/mL with the ABTS method, and very strong antiglucosidase activity with an IC50 of 146 ± 20 µg/mL.


2021 ◽  
Vol 24 (1) ◽  
pp. 68-74
Author(s):  
Najeeb Ur Rehman ◽  
Jamal Nasser Alsabahi ◽  
Tanveer Alam ◽  
Ajmal Khan ◽  
Kashif Rafiq ◽  
...  

2020 ◽  
Vol 15 (12) ◽  
pp. 1934578X2098123
Author(s):  
Peng-fei Yang ◽  
Hui Lu ◽  
Qiong-bo Wang ◽  
Zhi-wei Zhao ◽  
Qiang Liu ◽  
...  

Detailed chemical constituents of essential oil from the Pterocephalus hookeri leaves and its antimicrobial activities were investigated in this study. The essential oil, obtained by hydrodistillation, was characterized by gas chromatography-flame ionization detection and gas chromatography-mass spectrometry analyses. Among the 90 identified compounds, hexadecanoic acid (21.27%), phytol (8.03%), furfural (7.08%), oleic acid (5.25%), and phytone (4.56%) were the major components. In the antimicrobial assay, the essential oil showed strong inhibitory activities against Escherichia coli, Candida albicans, and Staphylococcus aureus with minimum inhibitory concentration values of 31.3, 62.5, and 125 µg/mL, respectively. To our knowledge, this is the first report concerning chemical composition and antimicrobial activities of the essential oil from Pterocephalus hookeri.


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