scholarly journals Gas Chromaotography-Mass Spectrometry Analysis of Insecticidal Essential Oil Derived from Chinese Ainsliaea fragrans Champ ex Benth (Compositae)

2015 ◽  
Vol 14 (9) ◽  
pp. 1685-1689
Author(s):  
MP Zhao ◽  
XC Liu ◽  
QZ Liu ◽  
ZL Liu
Keyword(s):  
Mass Spectrometry ◽  
Essential Oil ◽  
Sitophilus Zeamais ◽  
Mass Spectrometry Analysis ◽  
Grain Storage ◽  
Contact Toxicity ◽  
Spectrometry Analysis ◽  
Lc50 Value ◽  
Aerial Parts ◽  
Natural Insecticides

Purpose: To investigate the chemical composition and insecticidal activity of the essential oil of the aerial parts of Ainsliaea fragrans against maize weevils (Sitophilus zeamais).Methods: The essential oil of A. fragrans aerial parts was obtained by hydrodistillation and analyzed by gas chromatography (GC) and gas chromaotography-mass spectrometry (GC-MS). Contact toxicity of the essential oil and its major constituents was determined by topical application against S. zeamais.Results: A total of 30 components of the essential oil were identified. The major constituents were myristicin (41.3 %), elemicine (11.9 %), cis-isosafrole (11.5 %), borneol (9.1 %) and caryophyllene (8.8 %). The essential oil of A. fragrans exhibited contact toxicity against S. zeamais with LC50 value of 50.7 μg/adult. Elemicine possessed the strongest contact toxicity (LC50 = 13.5 μg/adult) while cis-isosafrole, myristicin, caryophyllene and borneol had LC50 values of 31.2 μg/adult, 43.4 μg/adult, 57.9 μg/adult, and 98.4 μg/adult, respectively.Conclusion: The study indicates that the essential oil of A. fragrans aerial parts and its major constituents have a potential for development into natural insecticides for the control of grain storage insects.Keywords: Ainsliaea fragrans, Sitophilus zeamais, Contact toxicity, Elemicine, Essential oil, Grain storage

scholarly journals Chemical composition and microbiological evaluation of essential oil from Hyssopus officinalis L. with white and pink flowers

2018 ◽  
Vol 16 (1) ◽  
pp. 317-323 ◽  
Author(s):  
Tomasz Baj ◽  
Izabela Korona-Głowniak ◽  
Radosław Kowalski ◽  
Anna Malm
Keyword(s):  
Mass Spectrometry ◽  
Chemical Composition ◽  
Essential Oil ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Spectrometry Analysis ◽  
Main Components ◽  
Different Content ◽  
Common Plant ◽  
Hyssopus Officinalis

AbstractHyssopus officinalis L. is a common plant that is most usually found in three color forms - f. cyaneus (blue), f. ruber Mill. (purple/pink) and f. albus Alef (white). In the present work, we evaluated the chemical composition and antimicrobial activity of essential oils obtained from Polish-sourced white- and pink-flowered H. officinalis. Gas chromatography-mass spectrometry analysis of the essential oil has shown that both forms of color have a different content of main components. The principle essential oil component of white-flowered H. officinalis L. was pinocamphone (51%), while pink-flowered H. officinalis L. contained almost equal amounts of pinocamphone (28.8%) and isopinocamphone (21.9%). Of note, the essential oil of the pink form was more active against Grampositive bacteria, especially against Bacillus subtilis.

scholarly journals GAS CHROMATOGRAPHY–MASS SPECTROMETRY ANALYSIS, IN VITRO ACTIVITIES, AND IN SILICO MOLECULAR DOCKING OF MAJOR COMPONENTS OF MICHELIA ALBA DC ESSENTIAL OIL AND SCENTED EXTRACTS

2018 ◽  
Vol 11 (12) ◽  
pp. 499
Author(s):  
Thongchai Khammee ◽  
Amornmart Jaratrungtawee ◽  
Mayoso Kuno
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Molecular Docking ◽  
Essential Oil ◽  
Binding Energies ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Spectrometry Analysis ◽  
Chromatography Mass Spectrometry

Objective: The essential oil and scented extracts of Michelia alba DC. were analyzed by gas chromatography–mass spectrometry (GC–MS) and investigated for antidiabetic activities in vitro and in silico.Methods: The identification of steam distilled essential oil and scented extracts of M. alba was performed by GC–MS on the Agilent 7890A chromatograph couple with GC-7000 Mass Triple Quadrupole. The extractions have been evaluated the antidiabetic activities by alpha-amylase (α-amylase) assay using starch as substrates. In addition, computational molecular docking analysis of significant components was studied to understanding how selected compounds interacted with α-amylase using AutoDock 4.2.Results: The yields of M. alba of steam distilled essential oil and solvent extractions including hexane, diethyl ether, and dichloromethane were 0.16%, 0.02%, 0.47%, and 0.92%, respectively. GC–MS analysis of essential oil revealed that the main component was monoterpenoids β-linalool (65.03%). Meanwhile, 2-methylbutanoic acid was a primary in hexane extract (36.54%) and dichloromethane extract (33.07%). In the case of ether extract, the primary compound was β-linalool (37.32%) same as in essential oil. The antidiabetic activities evaluation demonstrates that essential oil and scented extracts have shown promising α-amylase inhibition activity. Essential oil from steam distillation revealed the best inhibition potential with a half maximal inhibitory concentration value of 0.67±4.7 mg/ml and their significant components demonstrated negative binding energies, indicating a high affinity to the α-amylase-binding site using molecular docking simulation.Conclusion: Data from this study suggest that essential oil and scented extracts of M. alba DC possess in vitro α-amylase activities and can be used for therapy of diabetes.

Chemical Composition and Insecticidal Activities of the Essential Oil of Clinopodium chinense (Benth.) Kuntze Aerial Parts against Liposcelis bostrychophila Badonnel

2015 ◽  
Vol 78 (10) ◽  
pp. 1870-1874 ◽  
Author(s):  
HENG YU LI ◽  
XIN CHAO LIU ◽  
XU BO CHEN ◽  
QI ZHI LIU ◽  
ZHI LONG LIU
Keyword(s):  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Bornyl Acetate ◽  
Contact Toxicity ◽  
Fumigant Toxicity ◽  
Lc50 Value ◽  
Liposcelis Bostrychophila ◽  
Aerial Parts ◽  
Main Components ◽  
Total Oil

Water-distilled essential oil from Clinopodium chinense (Labiatae) aerial parts at the flowering stage was analyzed by gas chromatography–mass spectrometry. Thirty-five compounds, accounting for 99.18% of the total oil, were identified, and the main components of the essential oil of C. chinense were spathulenol (18.54%), piperitone (18.9%), caryophyllene (12.04%), and bornyl acetate (8.14%). Based on bioactivity-directed fractionation, bornyl acetate, caryophyllene, and piperitone were identified from the essential oil. The essential oil possessed fumigant toxicity against booklice (Liposcelis bostrychophila) with a 50% lethal concentration (LC50) value of 423.39 μg/liter, while the isolated constituents, bornyl acetate and piperitone, had LC50 values of 351.69 and 311.12 μg/liter against booklice, respectively. The essential oil also exhibited contact toxicity against L. bostrychophila with an LC50 value of 215.25 μg/cm2. Bornyl acetate, caryophyllene, and piperitone exhibited acute toxicity against booklice with LC50 values of 321.42, 275.00, and 139.74 μg/cm2, respectively. The results indicated that the essential oil and its isolated constituents have potential for development into natural insecticides or fumigants for control of insects in stored grains.

scholarly journals THE EFFECT OF THE USE OF GROWTH REGULATORS ON THE COMPONENT COMPOSITION OF ESSENTIAL OIL OF THE TOPS AND SEEDS OF ANETHUM GRAVEOLENS L.

2017 ◽  
pp. 217-221
Author(s):  
Ольга (Ol'ga) Владимировна (Vladimirovna) Шелепова (Shelepova) ◽  
Тамара (Tamara) Ивановна (Ivanovna) Хуснетдинова (Husnetdinova)
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Growth Regulators ◽  
Component Composition ◽  
Mass Spectrometry Analysis ◽  
Gas Chromatography Mass Spectrometry ◽  
Anethum Graveolens ◽  
Spectrometry Analysis ◽  
Main Components

The content and component composition of essential oil of air-dried phytomass and seeds of Anethum graveolens L. were determined. Dill was grown using the organo-mineral preparation Ideal and steroid phytohormone (24-epibrassinolide) Epin-extra. The use of growth regulators increased the yield of green dill (Ideal by 16%, Epin-extra by 6% compared to the control); did not affect the content of essential oil in the herbs of dill and increased the content of essential oil of dill seeds. GC/MS (Gas Chromatography / Mass Spectrometry) analysis revealed differences the ratio of the main components of the essential oil of dill when the use of growth regulators. In the essential oil of air-dried phytomass of plants, compared with the control, the content of alpha-fellandrene (1,3–1,7 times) and limonene (1,1–1,2 times) increased, anethofuran (1,4–1,8 times) and carvone (in 1,4–1,5 times). In the essential oil of dill seeds - increased content of limonene (1,7–1,9 times) and decreased carvone (1,1 times). When using growth regulators, a change in the aroma of plants was observed. The use of the Epin-extra drug caused more significant changes in the content of the major components of the essential oil of dill.

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