Pycnanthus Angolensis (Welw) Excell: Volatile Oil Constituents and Antimicrobial Activity

2006 ◽  
Vol 1 (8) ◽  
pp. 1934578X0600100 ◽  
Author(s):  
Anica Simic ◽  
Dietmar Kroepfl ◽  
Nebojsa Simic ◽  
Isiaka A. Ogunwande
Keyword(s):  
Antimicrobial Activity ◽  
Volatile Oil ◽  
Fungal Species ◽  
Caryophyllene Oxide ◽  
Volatile Oils ◽  
Leaf Oil ◽  
Main Components

The volatile oils obtained by hydrodistillation from Pycnanthus angolensis (Welw.) Exell., (African nutmeg), Myristicaceae, have been investigated by GC and GC-MS. The main components of the bark oil are α-bergamotene (25.1%), terpinen-4-ol (16.6%), α-terpineol (15.6%) and trans-β-bergamotene (12.9%). Only two compounds, spathulenol (82.0%) and caryophyllene oxide (14.0%), could be identified in the leaf oil. In addition, the volatile oils displayed promising antimicrobial activity against the tested bacterial and fungal species.

scholarly journals Essential Oils of Alpinia Rafflesiana and Their Antimicrobial Activities

2013 ◽  
Vol 8 (9) ◽  
pp. 1934578X1300800 ◽  
Author(s):  
Shariha Jusoh ◽  
Hasnah Mohd Sirat ◽  
Farediah Ahmad
Keyword(s):  
Essential Oils ◽  
Antimicrobial Activities ◽  
Caryophyllene Oxide ◽  
Capillary Gc ◽  
E Coli ◽  
Leaf Oil ◽  
Main Components ◽  
Fruit Oil ◽  
Antimicrobial Assay

The essential oils from the leaves, pseudostems, rhizomes and fruits of Alpinia rafflesiana were isolated by hydrodistillation. The oils were analysed by capillary GC and GC-MS. The most abundant components in the leaf oil were trans-caryophyllene (32.61%), caryophyllene oxide (8.67%), (2 E,6 Z)-farnesol (4.91%) and α-terpineol (4.25%), while 1,8-cineole (32.25%), myrcene (13.63%), α-terpineol (9.90%) and trans-caryophyllene (9.80%) were the main constituents in the pseudostem oil. The rhizome constituted of tetracosane (42.61%), τ-cadinol (7.46%), α-terpineol (6.71%) were the major components, whereas tetracosane (13.39%), (2 E,6 E)-farnesol (7.31%), α-terpineol (8.51%) and caryophyllene oxide (8.05%) were the main components in the fruit oil. Antimicrobial assay revealed that all the essential oils showed moderate to weak inhibition against the tested microorganisms. The leaf oil was the most active and inhibited both S. aureus and E. coli with MIC values of 7.81 μg/mL and 15.6 μg/mL, respectively.

scholarly journals Composition and Antimicrobial Activity of the Leaf and Twig Oils of Litsea Mushaensis and L. linii from Taiwan

2010 ◽  
Vol 5 (11) ◽  
pp. 1934578X1000501
Author(s):  
Chen-Lung Ho ◽  
Eugene I-Chen Wang ◽  
Yen-Hsueh Tseng ◽  
Pei-Chun Liao ◽  
Chien-Nan Lin ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Wood Decay ◽  
The Other ◽  
Fungal Activity ◽  
Leaf Oil ◽  
Main Components

The hydrodistilled essential oils of the leaves and twigs of Litsea mushaensis and L. linii were analyzed. Sixty-nine and ninety compounds were identified in the leaf and twig oils, respectively, of L. mushaensis. The main components of the leaf oil were β-eudesmol (24.2%), τ-cadinol (10.2%), α-humulene (10.1%), α-pinene (9.7%), and trans-β-ocimene (6.5%), whereas the main components of the twig oil were trans-β-ocimene (19.5%), α-pinene (12.8%) and cis-β-ocimene (7.7%). With L. linii, 72 and 78 compounds were respectively identified in the leaf and twig oils. The main components of the leaf oil were β-selinene (15.7%), α-selinene (15.5%), β-caryophyllene (12.2%), α-humulene (7.2%), and δ-cadinene (5.6%), and of the twig oil trans-β-ocimene (20.8%), β-selinene (11.4%), α-cadinol (6.0%), δ-cadinene (5.8%), τ-cadinol (5.4%) and β-eudesmol (5.2%). L. mushaensis leaf oil was shown to have excellent antimicrobial and anti-wood-decay fungal activity, superior to the other oils.

scholarly journals Chemical Composition and in Vitro Antimicrobial Activity of the Volatile Oils from Gliomastix murorum and Pichia guilliermondii, Two Endophytic Fungi in Paris polyphylla var. yunnanensis

2009 ◽  
Vol 4 (11) ◽  
pp. 1934578X0900401 ◽  
Author(s):  
Jianglin Zhao ◽  
Tijiang Shan ◽  
Yongfu Huang ◽  
Xili Liu ◽  
Xiwu Gao ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Endophytic Fungi ◽  
Inhibitory Concentration ◽  
Octadecenoic Acid ◽  
Volatile Oil ◽  
Pichia Guilliermondii ◽  
Volatile Oils ◽  
Paris Polyphylla ◽  
Gliomastix Murorum

Volatile oils were obtained by hydrodistillation from Gliomastix murorum and Pichia guilliermondii, two endophytic fungi isolated from the traditional Chinese medicinal herb Paris polyphylla var. yunnanensis. The oils were analyzed for their chemical composition by gas chromatography-mass spectrometry (GC-MS). Palmitic acid (15.5%), (E)-9-octadecenoic acid (11.6%), 6-pentyl-5,6-dihydropyran-2-one (9.7%), and (7Z,10Z)-7,10- hexadecadienoic acid (8.3%) were the major compounds of the 40 identified components in G. murorum volatile oil. 1,1,3a,7-Tetramethyl-1a,2,3,3a,4,5,6,7b-octahydro-1H-cyclopropa[a]- naphthalene (25.9%), palmitic acid (15.5%), 1-methyl-2,4-di- (prop-1-en-2-yl)-1- vinylcyclohexane (7.9%), (E)-9-octadecenoic acid (7.3%), and (9E,12E)-ethyl-9,12-octadecadienoate (5.2%) were the major compounds of the 27 identified components in P. guilliermondii volatile oil. The in vitro antimicrobial activity of the volatile oils was also investigated to evaluate their efficacy against six bacteria and one phytopathogenic fungus. The minimum inhibitory concentration (MIC) values of the volatile oils against the test bacteria ranged from 0.20 mg/mL to 1.50 mg/mL. One of the most sensitive bacteria was Xanthomonas vesicatoria with an MIC of 0.20 mg/mL and 0.40 mg/mL for G. murorum and P. guilliermondii, respectively. The mean inhibitory concentration (IC50) of the volatile oils against spore germination of Magnaporthe oryzae was 0.84 mg/mL for G. murorum and 1.56 mg/mL for P. guilliermondii. These results indicated that the volatile oils from the endophytic fungi have strong antimicrobial activity and could be a potential source of antimicrobial ingredients.

Chemical Composition and in vitro Antimicrobial Activity of the Essential Oils of Two Helichrysum Species from Tanzania

2004 ◽  
Vol 59 (5-6) ◽  
pp. 368-372 ◽  
Author(s):  
Christos Bougatsos ◽  
Olipa Ngassapa ◽  
Deborah K. B. Runyoro ◽  
Ioanna B. Chinou
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Pathogenic Fungi ◽  
Caryophyllene Oxide ◽  
In Vitro Antimicrobial Activity ◽  
Aerial Parts ◽  
Main Components

The chemical composition of the essential oils obtained from the aerial parts of Helichrysum cymosum and H. fulgidum, from Tanzania, were analyzed by GC and GC/MS. A total of sixty-five compounds, representing 92.4% and 88.2% of the two oils, respectively, were identified. trans-Caryophyllene, caryophyllene oxide, β-pinene, p-cymene, spathulenol and β- bourbonene were found to be the main components. Furthermore, the oils were tested against six gram (±) bacteria and three pathogenic fungi. It was found that the oil of H. fulgidum exhibited significant antimicrobial activity, while the oil of H. cymosum was not active at all.

scholarly journals The Chemical Composition of the Essential Oils from the Leaf, Stem-Bark and Twig of Terminalia mantaly H. Perrier (Combretaceae) from Nigeria

2020 ◽  
Vol 1 (5) ◽  
Author(s):  
Olajumoke Mariam Owoade ◽  
David Gbenga Oke
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oils ◽  
Mass Spectrometer ◽  
Principal Component ◽  
Volatile Oil ◽  
Stem Bark ◽  
Volatile Oils ◽  
Leaf Oil ◽  
Xylene Isomers

The essential oils from the leaf, stem-bark and twig of Terminalia mantaly were isolated by hydrodistillation. The volatile oils analysed on Gas Chromatography (GC) and Gas Chromatography – Mass Spectrometer (GC - MS). The identified constituents were twelve, twenty-three and seventeen for the leaf, stem-bark and twig and accounted for 89.57%, 95.77%, 95.92% respectively. Hexahydrofarnesylacetone (30.05%) and Z-pinane (16.71%) were the main constituents in the leaf oil and nonanal (21.16%) and heptanal (10.57%) were principal component in the stem-bark volatile oil. Xylene isomers namely, meta and para (21.98%-23.56%) were the major components of the twig with substantial amount of nonanal (13.64%).

scholarly journals Composition and Antimicrobial Activity of the Essential Oils from Flowers of Senecio othonnae, S. racemosus, and S. nemorensis

2010 ◽  
Vol 5 (5) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Osman Üçüncü ◽  
Nuran Kahriman ◽  
Salih Terzioğrlu ◽  
Şengül Alpay Karaoğrlu ◽  
Nurettin Yaylı
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Candida Tropicalis ◽  
Caryophyllene Oxide ◽  
Oil Composition ◽  
Sesquiterpene Hydrocarbons ◽  
Main Components ◽  
Total Oil

The chemical composition of the essential oils of Senecio othonnae, S. racemosus, and S. nemorensis obtained by hydrodistillation of fresh flowers were analysed by GC-FID and GC-MS. A total of seventy-six compounds were identified, constituting over 83.1%, 97.7% and 86.8% of the total oil composition of the flowers of S. othonnae, S. racemosus, and S. nemorensis. The main components of the oils were caryophyllene oxide (18.6%), ( E)-β-farnesene (21.6%), and γ-curcumene (42.8%), respectively. Sesquiterpene hydrocarbons were the main group of constituents of all three species, forming 34.6%, 73.2%, and 81.8% of the oils, respectively. The oils of S. othonnae, and S. nemorensis showed antimicrobial activity against Bacillus cereus, Staphylococcus aureus, Enterococcus faecalis, and Candida tropicalis, but that of S. racemosus was only active against Candida tropicalis.

scholarly journals Composition and Antimicrobial Activity of the Leaf Essential oil of Litsea kostermansii from Taiwan

2009 ◽  
Vol 4 (8) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Chen-Lung Ho ◽  
Eugene I-Chen Wang ◽  
Kuang-Ping Hsu ◽  
Pei-Yeh Lee ◽  
Yu-Chang Su
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oil ◽  
Antimicrobial Activities ◽  
Sesquiterpene Hydrocarbons ◽  
Leaf Oil ◽  
Leaf Essential Oil ◽  
Main Components

The hydrodistillated leaf essential oil of Litsea kostermansii was analyzed to determine its composition and yield. Seventy-three compounds were identified, the main components being β-eudesmol (22.5%), γ-eudesmol (18.6%), δ-selinene (8.5%), α-eudesmol (6.0%), and γ-muurolene (4.7%). Oxygenated sesquiterpenes (66.2%) and sesquiterpene hydrocarbons (32.8%) were the predominant groups of compounds. The leaf oil exhibited excellent antimicrobial activities.

scholarly journals Chemical Composition and Antibacterial Activity of the Essential Oils of Blainvillea Rhomboidea (Asteraceae)

2006 ◽  
Vol 1 (5) ◽  
pp. 1934578X0600100
Author(s):  
Andreza Maria L. Pires ◽  
Maria Rose Jane R. Albuquerque ◽  
Edson P. Nunes ◽  
Vânia M. M. Melo ◽  
Edilberto R. Silveira ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Caryophyllene Oxide ◽  
Bacterial Strains ◽  
Aerial Parts ◽  
Leaf Oil

The essential oils of Blainvellea rhomboidea (Asteraceae) were obtained by hydrodistillation and analyzed by GC/MS and GC/FID. Initially, the essential oil from the aerial parts was investigated. From the 18 identified components, 5-indanol (14.5%) followed by p-cymen-8-ol (10.1%), β-caryophyllene (9.6%), caryophyllene oxide (9.6%), limonene (8.6%), terpinolene (7.8%), and spathulenol (7.7%) were the major constituents. The oil was tested against seven bacterial strains and the results showed significant antimicrobial activity. As a consequence, the essential oils from leaves and from flowers were analyzed separately. The major constituents of the leaf oil were terpinolene (21.2%), β-caryophyllene (19.2%), spathulenol (9.1%), caryophyllene oxide (7.4%), and bicyclogermacrene (7.1%), while the oil of the flowers contained terpinolene (28.1%), 5-indanol (16.3%), p-cymen-8-ol (15.3%) and limonene (14.7%) as prevalent compounds. The oils were tested against the same bacterial strains and the flower oil was the more active. These results indicated that the components of the essential oil from flowers seem to be responsible for the activity.

Composition and Antimicrobial Activity of the Essential Oil of a Wild Kiwi

2011 ◽  
Vol 322 ◽  
pp. 160-163
Author(s):  
Yin Lu ◽  
Hong Chen
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Fungal Species ◽  
Gram Negative Bacteria ◽  
Significant Activity ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Leaf Oil ◽  
First Time

A medicinal wild kiwi in China, Actinidia valvata Dunn, has been well known for its activities against leprosy and cancers. The compositions and the antimicrobial activity of its leaf oil were reported for the first time. The oil obtained by hydrodistillation and analyzed by GC and GC-MS, was characterized by the high content of monoterpenes. Linalool (48.14%) is the major component identified, followed by 1,2-dimethyl-lindoline (7.94%), linolenic acid methylester (6.57%) and (E)-phytol (5.29%). The antimicrobial activity of the oil was evaluated against four bacterial and three fungal species. The results showed that it exhibited a mild antibacterial activity against two Gram-positive bacteria (Staphylococcus aureus and Bacillus subtilis), a significant activity against Gram-negative bacteria (Escherichia coli), and no activity on Pseudomonas aeruginosa. The test fungi were more sensitive to the oil, with a MIC range of 0.78~1.56 μL/mL than bacteria in the range which were significantly higher from 0.78 to 25.50 μL/mL.

scholarly journals Chemical Composition of the Essential Oil of Bupleurum Fontanesii (Apiaceae) Growing Wild in Sicily and its Activity on Microorganisms Affecting Historical Art Crafts

2016 ◽  
Vol 11 (1) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Simona Casiglia ◽  
Maurizio Bruno ◽  
Federica Senatore ◽  
Felice Senatore
Keyword(s):  
Staphylococcus Aureus ◽  
Antimicrobial Activity ◽  
Bacillus Subtilis ◽  
Chemical Composition ◽  
Aspergillus Niger ◽  
Essential Oil ◽  
Fusarium Oxysporum ◽  
Caryophyllene Oxide ◽  
Main Components ◽  
Historical Art

Hydrodistillation of the flowers (BpFl) of and fruits (BpFr) of Bupleurum fontanesii Guss. ex Caruel gave two oils that were analyzed by GC and GC-MS. The main components were α-elemol (16.7%), caryophyllene oxide (16.4%) and heptacosane (15.9%) in BpFl, and spathulenol (16.8%), caryophylladienol I (13.2%) and α-elemol (12.8%) in BpFr. A good antimicrobial activity against several microorganisms, including Bacillus subtilis, Staphylococcus aureus, Fusarium oxysporum and Aspergillus niger, all infesting historical art craft, was also determined.

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