scholarly journals Constituents of Peel and Leaf Essential Oils of Citrus Medica L

2009 ◽  
Vol 1 (2) ◽  
pp. 387-392 ◽  
Author(s):  
M. N. I. Bhuiyan ◽  
J. Begum ◽  
P. K. Sardar ◽  
M. S. Rahman
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectroscopy ◽  
Chemical Constituents ◽  
Citrus Medica ◽  
Leaf Oil ◽  
Gas Chromatography Mass Spectroscopy ◽  
Total Oil ◽  
Peel Oil

The chemical constituents of leaf and peel essential oil of Citrus medica L. were analysed by gas chromatography mass spectroscopy (GC-MS). Nineteen components accounting for 99.9% of the oil were identified in leaf oil. The major constituents are erucylamide (28.43%), limonene (18.36%) and citral (12.95%). The peel oil contains forty three components accounting for 99.8% of the total oil and the major components are isolimonene (39.37%), citral (23.12%) and limonene (21.78%). Keywords: Citrus medica; Essential oils; GC-MS; Erucylamide; Isolimonene. © 2009 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.DOI: 10.3329/jsr.v1i2.1760   

scholarly journals Essential oils of leaves and rhizomes of Kaempferia galanga Linn.

2013 ◽  
pp. 65-76
Author(s):  
Md Nazrul Islam Bhuiyan ◽  
Jaripa Begum ◽  
MN Anwar
Keyword(s):  
Gas Chromatography ◽  
Essential Oils ◽  
Ethyl Ester ◽  
Mass Spectroscopy ◽  
Caryophyllene Oxide ◽  
Kaempferia Galanga ◽  
Propenoic Acid ◽  
Leaf Oil ◽  
Gas Chromatography Mass Spectroscopy ◽  
Main Components

Kaempferia galanga Linn. leaf and rhizome oils, obtained by hydrodistillation, were analyzed by gas chromatography mass spectroscopy (GC-MS). One hundred and eight components were identified in the leaf oil. The major components were linoleoyl chloride (21.42%), caryophyllene oxide (11.75%), cubenol (9.66%) and caryophyllene (5.60%). Eighty one components were identified in rhizome oil with the main components being 2-propenoic acid, 3-(4-methoxyphenyl),-ethyl ester (63.36%), ethyl cinnamate (6.31%), 4-cyclooctene -1-methanol (4.61%), caryophyllene oxide (4.37%) and limonene (3.22%). The compositions of both oils varied qualitatively and quantitatively. DOI: http://dx.doi.org/10.3329/cujbs.v3i1.13407 The Chittagong Univ. J. B. Sci.,Vol. 3(1&2):65-76, 2008

scholarly journals Chemical Composition and Antibacterial Activities of Eight Plant Essential Oils from Morocco against Escherichia coli Strains Isolated from Different Turkey Organs

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Hassna Jaber ◽  
Asmaa Oubihi ◽  
Imane Ouryemchi ◽  
Rachid Boulamtat ◽  
Ali Oubayoucef ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Gas Chromatography ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectroscopy ◽  
Plant Essential Oils ◽  
E Coli ◽  
Gas Chromatography Mass Spectroscopy

The aim of the present study was to determine the chemical composition of eight plant essential oils and evaluate their antibacterial activity against Escherichia coli strains isolated from different turkey organs. The essential oils were extracted by hydrodistillation and analyzed using gas chromatography-mass spectroscopy. All essential oil yielded high in a range between 2.2 and 3.12%. Gas chromatography-mass spectroscopy (GC-MS) revealed that the major constituents of Thymus vulgaris, Ocimum basilicum, Artemisia herba-alba, and Syzygium aromaticum oils were thymol (41.39%), linalool (37.16%), camphor (63.69%), and eugenol (80.83%), respectively. Results of the E. coli sensitivity evaluated by the standard antimicrobial sensitivity method varied depending on the organ of isolation. Similarly, the essential oils antimicrobial activity determined by the disc diffusion method varied all along within the organs of isolation. T. vulgaris essential oil showed the highest effective antibacterial activity against E. coli isolated from the throat with an inhibition zone diameter value of up to 23.33 mm. However, all the essential oils showed antibacterial activity and the MIC and MBC values were in the range of 1/3000 to 1/100 (v/v) and the ratios MBC/MIC were equal to 1. In conclusion, this study showed that the essential oils could be promising alternatives to overcome E. coli multiresistance in turkey.

scholarly journals Analysis of white pepper essential oil components using gas chromatography-mass spectroscopy

2021 ◽  
pp. 230-234
Author(s):  
Purwaniati ◽  
Gilang Eka Permana ◽  
Indro Pamudjo
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectroscopy ◽  
White Pepper ◽  
Oil Components ◽  
Gas Chromatography Mass Spectroscopy

Introduction: White pepper is an important commodity used to produce essential oils. Differences in the oil components are determined by which region the peppers used were sourced from. Objectives: The aim of this study was to analyse the components of the essential oils produced by white peppers from different regions and to examine the specificity of these peppers. Methods: This analysis was carried out using the chromatography gas – mass spectroscopy (GC-MS) method on essential oil samples made from peppers obtained from the Java, Sumatera, Kalimantan, and Sulawesi Islands. Results: The results showed that white pepper essential oil contains 22 components, and that α-pinene, ꞵ–pinene, ∆-carene, sabinene, dl-limonene, and caryophyllene were major compounds within the oils. Furthermore, it showed that α-pinene, sabinene, and caryophyllene compounds were most found in samples from the Kalimantan, Sumatra, and Sulawesi Islands respectively. Meanwhile, those from Java Island contained ꞵ – pinene, ∆-carene, and caryophyllene in similar quantities.

scholarly journals Chemical Compositions and Tyrosinase Activity of the Essential Oils of Alpinia aquatica

2018 ◽  
Vol 13 (6) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Nissha Bharrathi Romes ◽  
Norazah Basar ◽  
Hasnah M. Sirat ◽  
Siti Ernieyanti Hashim ◽  
Zaini Asim
Keyword(s):  
Gas Chromatography ◽  
Essential Oils ◽  
Mass Spectroscopy ◽  
Capillary Gas Chromatography ◽  
Chemical Compositions ◽  
Inhibition Activity ◽  
Tyrosinase Inhibition ◽  
Germacrene D ◽  
Leaf Oil ◽  
Gas Chromatography Mass Spectroscopy

The essential oils obtained from the fresh rhizome, leaf, and pseudostem of Alpinia aquatica Roscoe. were hydrodistillated and analyzed using capillary gas chromatography (GC) and gas chromatography-mass spectroscopy (GC-MS). β-Pinene (11.7%), α-humulene (8.9%), aromadendrene (8.7%), and sabinene (7.7%) were the major components in the rhizome oil. The most abundant components of the leaf oil were germacrene D (21.3%), β-pinene (15.6%) and sabinene (12.1%), while α-humulene (19.8%), germacrene D (15.2%) and β-caryophyllene (8.7%) were the main constituents in the pseudostem oil. Antityrosinase assay revealed that all the three essential oils exhibited weak tyrosinase inhibition activities. The rhizome oil showed the highest inhibition activity with the value of 9.5% for the L-DOPA oxidation.

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 Determination of Chemical Constituents of Leaf and Stem Essential Oils of Artemisia monosperma from Central Saudi Arabia

2012 ◽  
Vol 7 (8) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Merajuddin Khan ◽  
Ahmad A. Mousa ◽  
Kodakandla V. Syamasundar ◽  
Hamad Z. Alkhathlan
Keyword(s):  
Gas Chromatography ◽  
Saudi Arabia ◽  
Essential Oils ◽  
Literature Search ◽  
Chemical Constituents ◽  
Oil Composition ◽  
Desert Region ◽  
Leaf Oil ◽  
Qualitative Similarity

The leaf and stem essential oils of Artemisia monosperma from the desert region of central Saudi Arabia were analysed by gas chromatography-based techniques (GC–FID, GC–MS, Co-GC, LRI determination, database and literature search) using polar as well as non-polar columns, which resulted in the identification of 130 components, of which 81 were common to both oils. In the leaf oil 120 compounds were identified, while 91 were identified in the stem oil accounting for 98.4% and 99.7% of the oil composition, respectively. The major constituents of the leaf oil were β-pinene (50.3%), α-terpinolene (10.0%), limonene (5.4%) and α-pinene (4.6%), while the major constituents of the stem oil were β-pinene (36.7%), α-terpinolene (6.4%), limonene (4.8%), β-maaliene (3.7%), shyobunone (3.2%) and α-pinene (3.1%). The two oils showed an important qualitative similarity. However, some specific constituents (39 in the leaf oil and 10 in the stem oil) allow differentiation of the two essential oils.

scholarly journals Chemical composition of essential oils from Bambusa vulgaris Leaf (Fresh and Dried) Schrad. Ex J.C. Wendl. [Poaceae] obtained in Nigeria

2018 ◽  
Vol 5 (1) ◽  
Author(s):  
Odunayo Atewolara-odule ◽  
Oseyemi Olubomehin ◽  
Enitan Adesanya ◽  
Adejumoke Hashimi ◽  
Abdulrazaq Ogunmoye
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Chemical Constituents ◽  
Gas Chromatography Mass Spectrometry ◽  
Fresh Sample ◽  
Bambusa Vulgaris ◽  
Volatile Aroma ◽  
First Time ◽  
Sulfur Pentafluoride

Essential oil is a hydrophobic concentrated liquid which contains volatile aroma compounds from plants. Bambusa vulgaris grows widely in the tropical and subtropical regions and has been reported to have different ethnomedicinal values such as antimalaria and antioxidant. It is also known to be an ornamental plant. The essential oil was extracted from both the fresh and dried leaves of Bambusa vulgaris by hydrodistillation method using a Clevenger apparatus. The chemical constituents of the essential oils were characterized using gas chromatography and gas chromatography-mass spectrometry. The essential oils obtained are colourless with an herbal odour giving a yield of 0.64 w/w for the fresh sample and 1.08 w/w for the dried sample. A total of thirty-nine (39) compounds were identified from the essential oils of both samples. The major constituents in the fresh leaves were 3-aminodibenzofuran (19.2%), ?-ocimene (11.1%), undecane (9.6%), tridecane (8.6%), [3,2-b] pyridin-6-octahydropyrano (7.1%), 2-mono laurin (6.9%) and vinyl decanoate (5.9%). Prominent compounds of the essential oil in the dried leaves were chlorophenoxymethylenimino sulfur pentafluoride (74.5%) and 2,2,6,6-tetramethyl-3,5-heptanedione (17.3%). Undecane, tridecane, hexadecane and octadecane were found both in the fresh and dried leaves. The chemical constituents of the essential oils from Nigeria Bambusa vulgaris were reported in this study for the first time to the best our knowledge and this could be useful in aromatherapy.

scholarly journals Chemical Constituents of Essential Oils from Resin and Bark of Agathis borneensis

1970 ◽  
Vol 2 (1) ◽  
pp. 28-32
Author(s):  
Fouziah Binti Alet ◽  
Zaini Bin Assim ◽  
Ismail Bin Jusoh ◽  
Fasihuddin Badruddin Ahmad
Keyword(s):  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oils ◽  
Mass Spectrometer ◽  
Capillary Gas Chromatography ◽  
Chemical Constituents ◽  
Flame Ionization Detector ◽  
Ionization Detector ◽  
Flame Ionization ◽  
Main Components

The chemical constituents of essential oils obtained from resin and bark of Agathis borneensis were analysed using capillary gas chromatography-flame ionization detector (GC-FID) and gas chromatography-mass spectrometer (GC/MS). The resin essential oil dominated by α-pinene (30.93%), δ-limonene (17.79%), β-pinene (11.28%) and terpinen-4-ol (8.35%). The main components in the bark essential oil were β-pinene (8.68%), terpinen-4-ol (8.54%), α-pinene (8.50%) and α-terpineol (8.48%).

scholarly journals Zingiber vuquangensis and Z. castaneum: Two Newly Discovered Species from Vietnam and Their Essential Oil Constituents

2018 ◽  
Vol 13 (6) ◽  
pp. 1934578X1801300 ◽  
Author(s):  
Le T. Huong ◽  
Trinh T. Huong ◽  
Nguyen T. T. Huong ◽  
Dao T. M. Chau ◽  
Ly N. Sam ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
National Park ◽  
Chemical Constituents ◽  
The Other ◽  
Bornyl Acetate ◽  
First Report ◽  
Antimicrobial Effects ◽  
Leaf Oil ◽  
Fruit Oil

The chemical constituents of essential oils obtained by hydrodistillation from Zingiber vuquangensis Lý N.S., Lê T.H., Trịnh T. H., Nguyễn V.H., Đỗ N.Đ. and Zingiber castaneum Škorničk. & Q.B. Nguyễn collected from Vu Quang National Park, Hà Tĩnh Province, Vietnam were analysed by GC and GC-MS. β-Pinene (24.7% and 26.1%) and β-caryophyllene (12.3% and 13.9%) were the main constituents in the leaf oil and stem oil of Zingiber vuquangensis. On the other hand the root oil contained bornyl acetate (20.9%), zerumbone (14.1%) and α-humulene (9.6%) while β-pinene (19.6%), 1,8-cineole (15.6%), α-pinene (10.3%) and β-caryophyllene (10.4%) were the significant compounds of the fruit oil. The leaf oil Zingiber castaneum was dominated by β-pinene (30.6%), α-pinene (9.5%), β-caryophyllene (9.4%) and bicycloelemene (9.1%). The compounds occurring in higher quantity in the stem oil were β-caryophyllene (14.7%), δ-cadinene (9.8%), bicycloelemene (8.4%) and α-cubebene (7.8%). However, camphene (15.1%), 1,8-cineole (13.6%), linalool (11.3%) and δ-3-carene (8.5%) were the main compounds of the root oil while ( E)-nerolidol (23.2%), ( Z)-9-octadecenamide (17.3%) and β-caryophyllene (10.8%) were the main constituents of the fruit oil. The essential oil did not exhibit noticeable antimicrobial effects. This is the first report on the volatile compositions of Z. vuquangensis and Z. castaneum.

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.

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