scholarly journals Antifungal activity and gas chromatography coupled with mass spectrometry (GC-MS) leaf oil analysis of essential oils extracted from Eucalyptus globulus (Myrtaceae) of north centre region of Morocco

2013 ◽  
Vol 7 (19) ◽  
pp. 1157-1162 ◽  
Author(s):  
Elhoussine Derwich
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Antifungal Activity ◽  
Essential Oils ◽  
Eucalyptus Globulus ◽  
Oil Analysis ◽  
Centre Region ◽  
Leaf Oil

scholarly journals Essential oil Composition of Ficus Benjamina (Moraceae)and Irvingia Barteri (Irvingiaceae)

2012 ◽  
Vol 7 (12) ◽  
pp. 1934578X1200701 ◽  
Author(s):  
Isiaka A. Ogunwande ◽  
Razaq Jimoh ◽  
Adedoyin A. Ajetunmobi ◽  
Nudewhenu O. Avoseh ◽  
Guido Flamini
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Ficus Benjamina ◽  
Germacrene D ◽  
Leaf Oil

Essential oils obtained by hydrodistillation of leaves of two Nigerian species were analyzed for their constituents by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). The leaf oil of Ficus benjamina L. (Moraceae), collected during the day, contained high contents of α-pinene (13.9%), abietadiene (9.7%), cis-α-bisabolene (8.2%) and germacrene-D-4-ol (8.4%), while the night sample was dominated by germacrene-D-4-ol (31.5%), 1,10-di- epi-cubenol (8.8%) and hexahydrofarnesylacetone (8.3%). This could be a possible indication of differences in emissions of volatiles by F. benjamina during the day and night. The main compounds of Irvingia barteri Hook. f. (Irvingiaceae) were β-caryophyllene (17.0%), (E)-α-ionone (10.0%), geranial (7.6%), (E)-β-ionone (6.6%) and β-gurjunene (5.1%).

scholarly journals Constituents of Essential Oils from the Leaf and Flower of Plumeria alba Grown in Nigeria

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Oladipupo A. Lawal ◽  
Isiaka A. Ogunwande ◽  
Andy R. Opoku
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Analysis ◽  
Essential Oil ◽  
Essential Oils ◽  
The Other ◽  
Caryophyllene Oxide ◽  
First Report ◽  
Leaf Oil ◽  
Phenyl Acetaldehyde

This paper reports on the compounds identified in the leaf and flower essential oils obtained by hydrodistillation of Plumeria alba L. (Apocynaceae) grown in Nigeria. The chemical analysis of the essential oils was achieved by means of gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS). Linalool (13.2%), n-nonanal (9.6%), phenyl acetaldehyde (8.5%), neryl acetone (5.3%) and n-decanal (5.1%) were the main constituents of the leaf oil. On the other hand, the flower oil comprised mainly of limonene (9.1%), linalool (7.9%), α-cedrene (8.0%), caryophyllene oxide (7.9%) and ( E, E)-α-farnesene (6.6%). This is the first report on the essential oil constituents of P. alba.

scholarly journals Constituents of Essential Oils from Dasymaschalon bachmaensis and Phaeanthus vietnamensis

2018 ◽  
Vol 13 (5) ◽  
pp. 1934578X1801300
Author(s):  
Le T. Huong ◽  
Dao T.M. Chau ◽  
Ly N. Sam ◽  
Tran D. Thang ◽  
Do N. Dai ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Volatile Compounds ◽  
Chemical Constituents ◽  
Benzyl Benzoate ◽  
Volatile Constituents ◽  
Leaf Oil ◽  
First Time

The present paper reports the volatile compounds identified in the essential oils of Dasymaschalon bachmaensis N.S. Lý, T.H. Lê, T.B. Vương & N.Đ.Đỗ and Phaeanthus vietnamensis Bân (Annonanceae) grown in Vietnam. The essential oils were obtained by hydrodistillation from the leaf, stem and bark of the plants. The combined techniques of gas chromatography (GC) and gas chromatography coupled to mass spectrometry (GC-MS) were used for the analysis of the chemical constituents of the oil samples. The major constituents of the leaf oil of D. bachmaensis were limonene (25.7%), eugenol (11.5%), α-phellandrene (11.3%) and benzyl benzoate (9.0%) while the stem contained benzyl benzoate (35.3%), ( Z)-13-docosenamide (12.4%) and limonene (9.4%) In addition, ( Z)-13-docosenamide (23.2%), limonene (25.3%) and α-phellandrene (11.5%) were present in the bark. However, limonene (31.8%), ( Z)-9-octadecamide (20.2%) and α-phellandrene (13.8%) were the compounds occurring in higher amount in the leaf oil of P. vietnamensis while the bark was dominated by ( Z)-9-octadecamide (57.4%) and benzyl benzoate (15.0%). The volatile constituents of both D. bachmaensis and P. vietnamensis are reported for the first time

scholarly journals Composição química, físico-química e atividade antifúngica dos óleos essenciais da flor e do fruto de Myrcia guianensis (Aubl.) DC.

2020 ◽  
Vol 1 (52) ◽  
pp. 92
Author(s):  
Antonio Carlos Pereira de Menezes Filho ◽  
Wendel Cruvinel de Sousa ◽  
Carlos Frederico de Souza Castro
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Antifungal Activity ◽  
Essential Oil ◽  
Essential Oils ◽  
Colletotrichum Gloeosporioides ◽  
Oil Extraction ◽  
Chemical Profile ◽  
Light Yellow ◽  
Proximal Analysis

Myrcia guianensis is a plant species found in the Cerrado domain, being called “guamirim”. This work aimed to characterize the chemical profile, physicochemical and antifungal activity of the essential oils from M. guianensis flower and fruit. Flowers and fruits were collected in the morning. Essential oil extraction was carried out by Clevenger, the yield was determined in percentage, the observation of color, aroma and touch was performed by proximal analysis, the relative density was measured by a pycnometer, the solubility was determined in a 70% hidroethanolic solution, and the chemical profile was analyzed by gas chromatography with coupled mass spectrometry. The antifungal activity was performed in different concentrations of essential oil, and the percentage of growth inhibition was determined from Sclerotinia sclerotiorum, Colletotrichum gloeosporioides and Aspergillus flavus. The yield of essential oils varied from 0.08% to 1.01%, colorless and light yellow, density of 0.906 g mL1 and 0.908 g mL1, for flower and fruit, respectively. The antifungal activity varied between 70.71% and 100% for S. sclerotiorum, 10.55% and 89.91% for C. gloeosporioides, and 53.32% and 100% for A. flavus by the flower oil, and between 70.71% and 100% for S. sclerotiorum, 12.45% and 100% for C. gloeosporioides and from 8.37% to 25.12% for A. flavus, by the essential oil from fruit. The essential oils of flowers and fruits showed important chemical and antifungal results for isolated tested fungal.

scholarly journals Antifungal and Insecticidal Activity of two Juniperus Essential Oils

2009 ◽  
Vol 4 (1) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
David E. Wedge ◽  
Nurhayat Tabanca ◽  
Blair J. Sampson ◽  
Christopher Werle ◽  
Betul Demirci ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Biological Activity ◽  
Antifungal Activity ◽  
Essential Oils ◽  
Insecticidal Activity ◽  
Gas Chromatography Mass Spectrometry ◽  
Colletotrichum Acutatum ◽  
Lace Bugs ◽  
Direct Bioautography

Essential oils of two Tibetan Junipers Juniperus saltuaria and J. squamata var. fargesii (Cupressaceae) were obtained by distilling dried leaves and branches using a Clevenger apparatus. Sixty-seven compounds from J. saltuaria and 58 from J. squamata var. fargesii were identified by gas chromatography—mass spectrometry (GC-MS). Both essential oils contained similar ratios of four abundant monoterpenoids: 44 and 35% sabinene, 13 and 9% elemol, 8 and 7% terpinen-4-ol, and 4 and 17% α-pinene, respectively. These oils had antifungal activity based on a direct bioautography assay of Colletotrichum acutatum, C. fragariae, and C. gloeosporioides, and insecticidal activity based on serial-time mortality bioassay of azalea lace bugs, Stephanitis pyrioides. Antifungal activity of Juniperus oils was weak when compared with commercial fungicides such as benomyl and captan. Whole Juniperus oils at quarter the dosage used against Colletotrichum species were more insecticidal than 10 mg/mL malathion, killing ≥70 - 90% adult lace bugs after 4 hours of exposure. Rf values of 0.18 for J. saltuaria oil and 0.19 for J. squamata oil indicated lipophilic monoterpenes which were the putative sources of biological activity.

scholarly journals VOLATILE COMPONENTS OF ONCOBA SPINOSA LEAF AND MORUS MESOZYGIA LEAF AND STEM BARK

2015 ◽  
Vol 23 (23) ◽  
pp. 23-35
Author(s):  
S. A. Aboaba ◽  
O. Adeeko
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Stem Bark ◽  
Volatile Components ◽  
Caryophyllene Oxide ◽  
Leaf Oil ◽  
Total Oil

The essential oils of Oncoba spinosa leaf and Morus mesozygia leaf and stem bark were extracted using hydrodistillation and analyzed by means of Gas chromatography (GC) and GC coupled with mass spectrometry (GC-MS). The yields of the essential oils were; 0.50 %, 0.165 %, and 0.456 % respectively for Oncoba spinosa leaf, Morus mesozygia leaf, and stem oil. A total of twenty-eight, thirty-four and twenty compounds representing 92.0%, 92.0%, and 96.9% of the total oil contents were identified, respectively from the leaf of O. spinosa, leaf, and stem oil of M. mesozygia. Leaf oil of O. spinosa contained linalool (22.1 %), ȕ – caryophyllene (18.7 %), caryophyllene oxide (10.6 %) and pentadecanal (5.6 %) as the main constituents. M. mesozygia leaf oil was dominated with ȕ – elemene (11.7 %), (E) –ȕ- ionone (12.4 %), Į- selinene (5.1 %), germacrene A (6.0 %), į – cadinene (4.7 %) and spathulenol (7.4 %) while M. mesozygia stem oil had 2 –dodecanone (77%) and hexahydrofarnesylacetone (13 %) as its main constituents.

scholarly journals Volatile constituents of essential oils isolated from leaf and inflorescences of Piper longum Linn.

2013 ◽  
pp. 77-85
Author(s):  
Md Nazrul Islam Bhuiyan ◽  
Jaripa Begum ◽  
MN Anwar
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Benzyl Benzoate ◽  
Piper Longum ◽  
Leaf Oil ◽  
In Trans

Essential oil compositions of the inflorescences and leaf of Piper longum Linn. were investigated by gas chromatography–mass spectrometry (GC-MS). P. longum oils were found to contain few monoterpene hydrocarbons, a moderate content of sesquiterpenes and high content of aliphatic hydrocarbons. The inflorescences oil rich in eugenol (33.11%), caryophyllene (9.29%), cinnamyl acetate (5.91%) and b-pinene (4.74%), whereas leaf oil rich in trans-nerolidol (19.08%), caryophyllene (12.25%), 3-heptene, 7-phenyl- (3.71%), benzyl benzoate (3.68%), caryophyllene oxide (3.62%) and ?-elemene (3.28%). The compositions of both oils varied qualitatively and quantitatively. DOI: http://dx.doi.org/10.3329/cujbs.v3i1.13408 The Chittagong Univ. J. B. Sci.,Vol. 3(1&2):77-85, 2008

Evaluation of the quality of sandalwood essential oils by gas chromatography–mass spectrometry

2004 ◽  
Vol 1028 (2) ◽  
pp. 307-312 ◽  
Author(s):  
Melanie-Jayne R Howes ◽  
Monique S.J Simmonds ◽  
Geoffrey C Kite
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oils ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry
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