Variation in essential oil composition ofHypericum scabrumL. andH. scabroidesN. Robson & Poulter (Hypericaceae) aerial parts during its phenological cycle

2010 ◽  
Vol 157 (2) ◽  
pp. 247-254 ◽  
Author(s):  
Eyüp Bagci ◽  
Fatih Bekci
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Aerial Parts ◽  
Phenological Cycle

Investigation of the Essential Oil of Ormenis africana from Morocco: Revision of Chemical Composition and Antibacterial Activity

2021 ◽  
Vol 1 (30) ◽  
pp. 34-38
Author(s):  
El Hanbali F Barrero A.F
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Proteus Vulgaris ◽  
Oil Composition ◽  
Gram Negative ◽  
Main Compound ◽  
Oxygenated Compounds ◽  
Aerial Parts

Abstract- The essential oil composition from the aerial parts of Ormenis africana (Asteraceae), an endemic species from Morocco, has been investigated by GC/MS. A total of 31 compounds were identified, representing 77%. After fractionation by column chromatography, the main compound was isolated and its structure elucidated by NMR spectroscopy. The essential oil was dominated by oxygenated compounds with spathulenol (45.8%) followed by camphor (7.1%), -cadinol (5.9%) and -bisabolol (5.9%) as the main compounds. This oil can be classified as spathulenol-type according to its spathulenol content. In vitro the antibacterial activity of the whole essential oil against three Gram positive (Bacillus cereus, Enterococcus faecalis, Streptococcus C) bacteria and three Gram negative (Proteus vulgaris, Escherichia coli, Pseudomonas aeroginosa) bacteria, showed significant results. Keywords: Asteraceae, Ormenis africana, Essential oil, Spathulenol, Antibacterial activity.

scholarly journals Essential Oil Composition of Thymus Serpyllum Cultivated in the Kumaon Region of Western Himalaya, India

2009 ◽  
Vol 4 (7) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Ram S. Verma ◽  
Laiq ur Rahman ◽  
Chandan S. Chanotiya ◽  
Rajesh K. Verma ◽  
Anand Singh ◽  
...  
Keyword(s):  
Essential Oil ◽  
Methyl Ether ◽  
Western Himalaya ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Aerial Parts ◽  
Thymus Serpyllum

The hydrodistilled essential oil of aerial parts of Thymus serpyllum L. (Lamiaceae), cultivated in the Kumaon region of western Himalaya was analyzed by GC and GCMS. Twenty-nine compounds, representing 91.8% of the oil, were identified. The major components were thymol (58.8%), p-cymene (5.7%), thymol methyl ether (4.0%), borneol (3.8%), sabinene (3.4%), γ-terpinene (3.4%) and carvacrol methyl ether (3.2%).

scholarly journals Essential Oil Composition of Helichrysum conglobatum from Cyprus

2016 ◽  
Vol 11 (10) ◽  
pp. 1934578X1601101
Author(s):  
Kaan Polatoğlua ◽  
Betül Demirci ◽  
İhsan Çalιş ◽  
Kemal Hüsnü Can Başer
Keyword(s):  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Yield ◽  
Hexadecanoic Acid ◽  
Oil Composition ◽  
Tetradecanoic Acid ◽  
First Report ◽  
Aerial Parts ◽  
Main Components ◽  
Essential Oil Yield

The essential oil of aerial parts of Helichrysum conglobatum (Viv.) Steudel. (Asteraceae) from Cyprus was analyzed by GC and GC-MS. The essential oil yield was 0.01, v/w. Forty five compounds were identified in the oil comprising 96.1% of the total. The essential oil was mainly composed of sesquiterpene type compounds and oxygenated sesquiterpene derivatives. The main components of the oil were β-caryophyllene (14.6%), γ-curcumene (14.1%), hexadecanoic acid (13.5%), tetradecanoic acid (7.5%), rosifoliol (5.4%) and δ-cadinene (5.3%). This is the first report on the essential oil composition of H. conglobatum from Cyprus.

scholarly journals Composition of Essential Oil of Aerial Parts of Chamomilla suaveolens from Estonia

2010 ◽  
Vol 5 (1) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Anne Orav ◽  
Janne Sepp ◽  
Tiiu Kailas ◽  
Mati Müürisepp ◽  
Elmar Arak ◽  
...  
Keyword(s):  
Essential Oil ◽  
Palmitic Acid ◽  
Essential Oil Composition ◽  
Biologically Active Compounds ◽  
Biologically Active ◽  
Oil Composition ◽  
Active Compounds ◽  
Aerial Parts ◽  
Total Oil

Variations in the essential oil composition of aerial parts of pineapple weed (Chamomilla suaveolens (Pursh) Rydb.) growing wild in Estonia, were determined using GC/FID and GC/MS. Forty-four components were identified, representing over 90% of the total oil. Nine compounds have not been mentioned in the literature before. The principal biologically active compounds in C. suaveolens oils were (Z)-en-yne-dicycloether (17.0 – 40.7%), (E)-β-farnesene (19.5– 32.2%), geranyl isovaleriate (8.4 –18.4%), palmitic acid (0.3 – 9.4%) and myrcene (1.1 – 7.9%). The investigation seems to approve the benefit of using aerial parts of pineapple weed as the substitute for flowers.

scholarly journals Essential Oil Composition and Antibacterial Activity of Monticalia greenmaniana (Asteraceae)

2012 ◽  
Vol 7 (2) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
José Cárdenas ◽  
Janne Rojas ◽  
Luís Rojas-Fermin ◽  
María Lucena ◽  
Alexis Buitrago
Keyword(s):  
Antibacterial Activity ◽  
Essential Oil ◽  
Mass Spectra ◽  
Essential Oil Composition ◽  
Gram Negative Bacteria ◽  
Oil Composition ◽  
Aerial Parts ◽  
Germacrene D ◽  
Leaf Oil ◽  
Leaf Essential Oil

The essential oils from fresh aerial parts of Monticalia greenmaniana (Hieron) C. Jeffrey (Asteraceae) collected in March, were analyzed by GC/MS. Oil yields (w/v) of 0.1% (flowers), 0.07%, (stems) and 0.1% (leaves) were obtained by hydrodistillation. Thirteen, sixteen and eighteen components, respectively, were identified by comparison of their mass spectra with those in the Wiley GC-MS Library data base. The major components of the flower and stem oils were 1-nonane (38.8% flowers; 33.5% stems), α-pinene (29.0% flowers; 14.8% stems) and germacrene D (15.6% flowers; 18.6% stems). However, in the leaf oil, germacrene D was observed at 50.7%, followed by β-cedrene at 8.4 %. The leaf essential oil showed a broad spectrum of antibacterial activity against the important human pathogenic Gram-positive and Gram-negative bacteria Staphylococcus aureus (ATCC 25923), Enterococcus faecalis (ATCC 19433), Escherichia coli (ATCC 25922), Pseudomonas aeruginosa (ATCC 27853) and Klebsiella pneumoniae (ATCC 25955) with MIC values ranging from 75 to 6000 ppm.

Variation of Essential Oil Composition and Antioxidant Activity in Aerial Parts of Stachys Schtschegleevi Sosn at Different Growing Stages

2020 ◽  
Vol 23 (5) ◽  
pp. 1054-1071
Author(s):  
Saeid Hazrati ◽  
Vahid Rowshan ◽  
Seyyed Jaber Hosseini ◽  
Mojde Sedaghat ◽  
Hamid Mohammadi
Keyword(s):  
Antioxidant Activity ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Aerial Parts

scholarly journals Essential Oil Composition and Antimicrobial Activity of Aerial Parts and Ripe Fruits of Echinophora spinosa (Apiaceae) from Italy

2013 ◽  
Vol 8 (4) ◽  
pp. 1934578X1300800
Author(s):  
Daniele Fraternale ◽  
Salvatore Genovese ◽  
Donata Ricci
Keyword(s):  
Antimicrobial Activity ◽  
Candida Albicans ◽  
Chemical Composition ◽  
Essential Oil ◽  
Intestinal Microflora ◽  
Central Italy ◽  
Essential Oil Composition ◽  
Oil Composition ◽  
Aerial Parts ◽  
Eubacterium Limosum

The chemical composition and antimicrobial activity of the essential oils obtained from the flowering aerial parts and ripe fruits of Echinophora spinosa L. (Apiaceae) from central Italy were analyzed by GC/MS. The major constituents of the oil from the aerial parts were β-phellandrene (34.7%), myristicin (16.5%), δ3-carene (12.6%), α-pinene (6.7%) and α-phellandrene (6.2%), and of the oil from the ripe fruits p-cymene (50.2%), myristicin (15.3%), α-pinene (15.1%) and α-phellandrene (8.1%). The two oils showed good antimicrobial activity against Clostridium difficile, C perfringens, Enterococcus faecalis, Eubacterium limosum, Peptostreptococcus anaerobius and Candida albicans with MIC values respectively of 0.25, 0.25, 0.25, 0.25, 2.25, and 0.50%, v/v, and 0.13, 0.13, 0.13, 0.13, 2.25, 0.50%, v/v, for aerial parts and ripe fruits respectively. A less significant antimicrobial activity against bifidobacteria and lactobacilli, very important in the intestinal microflora, was also detected, with MIC values higher than 4.0%, v/v.

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