scholarly journals Volatile Components of Aerial Parts of Centaurea nigrescens and C. stenolepis Growing Wild in the Balkans

2010 ◽  
Vol 5 (2) ◽  
pp. 1934578X1000500 ◽  
Author(s):  
Carmen Formisano ◽  
Felice Senatore ◽  
Svetlana Bancheva ◽  
Maurizio Bruno ◽  
Antonella Maggio ◽  
...  
Keyword(s):  
Volatile Components ◽  
Caryophyllene Oxide ◽  
Volatile Constituents ◽  
The Balkans ◽  
Aerial Parts ◽  
Two Samples ◽  
Hexahydrofarnesyl Acetone ◽  
Main Components

The volatile constituents of the aerial parts of Centaurea nigrescens Willd, collected in Romania and of two samples of C. stenolepis A. Kerner from Bulgaria and Romania were obtained by hydrodistillation and analyzed. The main components of C. stenolepis were caryophyllene oxide (6.9-15.6%), hexahydrofarnesyl acetone (6.5-4.4%), heptacosane (6.0-4.9%) and p-vinyl guiacol (4.3-5.0%). The main components of C. nigrescens were caryophyllene oxide (9.9%), β-eudesmol (9.5%), spathulenol (7.6%), heptacosane (6.1%) and p-vinyl guiacol (5.5%). The chemotaxonomic significance with respect to their co-location in Sections Lepteranthus and Nigrescentes, respectively, is discussed.

scholarly journals Volatile Components from Aerial Parts of Centaurea diffusa and C. micrantha ssp. melanosticta and Their Biocidal Activity on Microorganisms Affecting Historical Art Crafts

2018 ◽  
Vol 13 (9) ◽  
pp. 1934578X1801300
Author(s):  
Maurizio Bruno ◽  
Azzurra Milia ◽  
Giorgia Catinella ◽  
Svetlana Bancheva
Keyword(s):  
Volatile Components ◽  
Hexadecanoic Acid ◽  
Centaurea Diffusa ◽  
Antibacterial And Antifungal Activities ◽  
Aerial Parts ◽  
Art Works ◽  
Hexahydrofarnesyl Acetone ◽  
Main Components ◽  
Antibacterial And Antifungal ◽  
Historical Art

The chemical composition of the essential oils from aerial parts of two taxa of Centaurea belonging to subgenus Acrolophus, Centaurea diffusa Lam. and C. micrantha Hoff. ssp. melanosticta (Lange) Dostàl, respectively collected in Croatia and Spain, were evaluated by GC and GC-MS. The main components of C. diffusa were hexadecanoic acid (31.1%), ( Z,Z)-9,12-octadecadienoic acid (10.7%) and damascenone isomers (6.4%), whereas hexahydrofarnesyl acetone (27.8%), hexadecanoic acid (8.3%) and caryophyllene oxide (6.4%) were the most abundant components of C. micrantha ssp. melanosticta. The oils showed good antibacterial and antifungal activities against some microorganisms that infest historical art works.

scholarly journals Chemical Composition and Antimicrobial Activity of Daucus aureus Essential Oils from Algeria

2013 ◽  
Vol 8 (6) ◽  
pp. 1934578X1300800
Author(s):  
Nawel Meliani ◽  
Mohammed El Amine Dib ◽  
Nassim Djabou ◽  
Jean Costa ◽  
Hocine Allali ◽  
...  
Keyword(s):  
Essential Oils ◽  
Analytical Techniques ◽  
Antimicrobial Effect ◽  
Volatile Components ◽  
Chemical Compositions ◽  
Caryophyllene Oxide ◽  
Tetradecanoic Acid ◽  
Aerial Parts ◽  
Growing Conditions ◽  
Main Components

The volatile components of Algerian Daucus aureus Desf. were investigated using a combination of analytical techniques. Analyses of essential oils obtained by hydrodistillation from the aerial parts and roots of the plant were performed using capillary GC/RI and GC/MS analysis. Seventy-one compounds were identified, constituting 90.2–96.0% of the total essential oils,. The main components from the aerial parts of the plants were germacrene D (11.3–67.2%), followed by caryophyllene oxide (0.9–9.5%), spathulenol (0.6–8.4%), ( Z)-α-santalol (1.4–6.5%), viridiflorol (0.9–5.8%), cadin-4-en-7-ol (1.5–5.6%), and τ-cadinol (1.2–5.2%). The main components of the essential oils obtained from the roots of the plant were ( Z)-α-santalol (14.1%), caryophyllene oxide (10.6%), spathulenol (9.8%), nonadecane (6.8%), and tetradecanoic acid (5.2%). The intraspecies variations of the chemical compositions of the essential oils from the aerial parts of D. aureus from 14 Algerian sample locations were investigated using statistical analysis. Essential oil samples were clustered into two groups according to their chemical compositions. This chemical variability could be attributed to growing conditions and environmental factors. The essential oils exhibited an interesting antimicrobial effect against the microorganisms tested, with MIC values in the range of 0.125–4.6 mg/mL. It is suggested that the essential oils from D. aureus may be a new potential source of natural antimicrobial compounds that could be applied in the pharmaceutical and food industries.

scholarly journals Activity against Microorganisms Affecting Cellulosic Objects of the Volatile Constituents of Leonotis nepetaefolia from Nicaragua

2014 ◽  
Vol 9 (11) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Simona Casiglia ◽  
Maurizio Bruno ◽  
Felice Senatore
Keyword(s):  
Antibacterial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Bacillus Cereus ◽  
Caryophyllene Oxide ◽  
Cellulosic Material ◽  
Volatile Constituents ◽  
Aerial Parts ◽  
Staphylococcus Epidermis ◽  
Main Components

The chemical composition of the essential oil from aerial parts of L. nepetaefolia (L.) R. Br. collected in Nicaragua was evaluated by GC and GC-MS. The main components were ( Z)-phytol (22.8%), caryophyllene oxide (18.9%) and hexahydrofarnesylacetone (9.0%). The antibacterial activity against several Gram + and Gram - bacteria, including Bacillus cereus and B. subtilis, both infesting historical cellulosic material, was also determined. B. cereus, B. subtilis and Staphylococcus epidermis were the most affected by the action of the oil.

scholarly journals Chemical Composition of the Essential Oils of Centaurea formanekii and C. orphanidea ssp. thessala, Growing Wild in Greece

2012 ◽  
Vol 7 (8) ◽  
pp. 1934578X1200700 ◽  
Author(s):  
Mariem Ben Jemia ◽  
Carmen Formisano ◽  
Svetlana Bancheva ◽  
Maurizio Bruno ◽  
Felice Senatore
Keyword(s):  
Chemical Composition ◽  
Methyl Ester ◽  
Essential Oils ◽  
Acid Methyl Ester ◽  
Caryophyllene Oxide ◽  
Hexadecanoic Acid ◽  
Volatile Constituents ◽  
Aerial Parts ◽  
Acid Methyl ◽  
Main Components

The volatile constituents of the aerial parts of Centaurea formanekii Halacsy and the aerial parts, capitula and roots of C. orphanidea Heldr. & Sart. ex Boiss. ssp. thessala (Hausskn.) Dostál from Greece were extracted by hydrodistillation and analyzed. The main components in C. formanekii were hexadecanoic acid (13.6%), δ-elemene (9.1%), and spathulenol (6.9%). The main components in C. orphanidea ssp. thessala were γ-elemene (26.1%) and caryophyllene oxide (13.2%) in the aerial parts, hexadecanoic acid (33.5%) and heptacosane (6.3%) in the capitula, and hexadecanoic acid methyl ester (22.0%) and α-chamigrene (14.0%) in the roots. The chemotaxonomic significance with respect to other previously studied species of the same sections (Phalolepis and Achrolopus, respectively) is discussed.

scholarly journals Comparison of Volatiles of Sideritis caesarea Specimens Collected from Different Localities in Turkey

2017 ◽  
Vol 12 (10) ◽  
pp. 1934578X1701201
Author(s):  
Tuğba Günbatan ◽  
Betül Demirci ◽  
İlhan Gürbüz ◽  
Fatih Demircib ◽  
Ayşe Mine Gençler Özkanc
Keyword(s):  
Gas Chromatography ◽  
Folk Medicine ◽  
Volatile Components ◽  
Chemical Compositions ◽  
Moderate Activity ◽  
Caryophyllene Oxide ◽  
Hexadecanoic Acid ◽  
Flame Ionization ◽  
Main Components

Sideritis caesarea H. Duman, Aytaç & Başer of the Lamiaceae is an Anatolian endemic species, and is mainly used as herbal tea and folk medicine. This present study aimed to determine and compare the chemical compositions of the volatile components of S. caesarea specimens collected from different localities in Kayseri province, Turkey: Sariz town (samples A and B), Pınarbaşı-Kaynar (sample C) and Pınarbaşı-Şirvan Mountain (sample D), respectively. Initially, the essential oils of the aerial parts were obtained by hydrodistillation and analysed both by gas chromatography-flame ionization detector (GC-FID), gas chromatography/mass spectrometer (GC/MS), simultaneously. Major volatile components of samples A and D were characterized as hexadecanoic acid (19.7 and 20.5%), caryophyllene oxide (6.7 and 20.2%), β-caryophyllene (6.5 and 12.6%), respectively. In sample B, hexadecanoic acid (14.6%), β-caryophyllene (11.5%) and caryophyllene oxide (8.3%) were detected as the major components. Whereas caryophyllene oxide (13.7%), hexadecanoic acid (8.5%) and spathulenol (6.1%) were the main components of the essential oil of sample C. Besides the chemical profiling, in vitro antimicrobial effects of samples were evaluated against a panel of six pathogenic microorganisms. Inhibition zones of the tested samples varied against bacteria with low to moderate activity, where no susceptibility against Candida albicans was observed.

Volatile Constituents of the Ligarine Extract of Eupatoriurn odoraturn

2013 ◽  
Vol 726-731 ◽  
pp. 245-249
Author(s):  
Zhong Liang Sun ◽  
Feng Xia Liu ◽  
Xian Qun Luo ◽  
Yu Cang Zhang ◽  
Jing Xu
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Radical Scavenging ◽  
Acid Methyl Ester ◽  
Eicosatrienoic Acid ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Constituents ◽  
Aerial Parts ◽  
Chromatography Mass Spectrometry ◽  
Main Components

Eupatoriurn odoratumaerial parts were extracted with ligarine and the volatile constituents isolated were analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). Volatile constituents were isolated from the ground aerial parts ofE. odoratumby ligarine extraction and analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). As a result, a total of fifteen compounds represented all of the extract were identified, amongst nine of fifteen compounds were sesquiterpenes. Esters and sesquiterpenes were found to compose three major chemotype accounted for 58.58% and 30.80% of the constituents, respectively. The main components was demonstrated to be dibutyl phthalate (39.73%), 11,14,17-eicosatrienoic acid, methyl ester (13.20%), (S)-spiro [4.nona-1,6-diene (6.80%), 1,2-benzenedicarboxylic acid, bis (2-methylpropyl) ester (5.65%) andcis-Z-α-bisabolene epoxide (5.56%). In addition, some pharmaceutical components such as α-cadinol and germacrene D were discovered. Antioxidant activity of the extract was assessed by the free radical scavenging (DPPH). The study offers theoretic basis for pharmaceutical utilization of the medicinal plantE. odoratum.

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.

The chemical composition, antimicrobial, and antioxidant activities of Pycnocycla spinosa and Pycnocyla flabellifolia essential oils

2016 ◽  
Vol 71 (11-12) ◽  
pp. 403-408 ◽  
Author(s):  
Mohaddese Mahboubi ◽  
Elaheh Mahdizadeh ◽  
Rezvan Heidary Tabar
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Inhibition Zone ◽  
Chemical Compositions ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Dilution Assay ◽  
Main Components ◽  
Broth Dilution

Abstract The purpose of our study was to compare the chemical compositions and antimicrobial and antioxidant activities of Pycnocycla spinosa and Pycnocycla flabellifolia essential oils. cis-Asarone (62.5%) and widdra-2,4(14)-diene (9%) were the main components of P. spinosa aerial part essential oil, while elemicin (60.1%) and caryophyllene oxide (9.8%) were the main components of P. spinosa seed essential oil. α-Phellandrene (25.5%), p-cymene (15.3%), and limonene (13.3%) were found in P. flabellifolia essential oil. The inhibition zone diameters for P. flabellifolia essential oil were significantly higher than for the two other essential oils from P. spinosa (p<0.05). In broth dilution assay (µL/mL), the sensitive microorganism to Pycnocycla sp. (P. spinosa, P. flabellifolia) was Aspergillus niger, followed by Candida albicans. In 2,2-diphenyl-1-picrylhydrazyl (DPPH) system, P. spinosa aerial parts essential oil (IC50=548 µg/mL) had higher antioxidant activity than that of two other essential oils.

scholarly journals ESTUDO ALELOPÁTICO APLICADO DE ASTER LANCEOLATUS, WILLD.

2005 ◽  
Vol 6 (1) ◽  
Author(s):  
Joseane F. G. Dias ◽  
Marilis Dallarmi Miguel
Keyword(s):  
Essential Oil ◽  
Lactuca Sativa ◽  
Inhibitory Influence ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Applied Study ◽  
Hexahydrofarnesyl Acetone ◽  
Pure Compounds ◽  
Stems And Leaves ◽  
Asteraceae Family

O presente trabalho realizou estudo sobre Aster lanceolatus, Willd., pertencente a família Asteraceae, cujas partes aéreas foram divididas em duas porções. A primeira, composta de flores e a segunda, de caules e folhas. Da análise de CG nas frações hexano, verificou-se presença de β-sitosterol. Utilizando-se resultados obtidos com o estudo alelopático dos extratos etanólicos e frações, realizaram-se estudos fitoquímicos com o intuito de isolar compostos com provável atividade alelopática e testá-los com técnica desenvolvida denominada alelopatografia. Verificou-se a presença de espinasterol e canferol-rhamnosil-galactosídeo que ao serem submetidos a alelopatografia apresentaram influência alelopática inibitória da germinação e formação de folíolos. Da análise de CG/EM realizada com o óleo essencial, identificou-se treze constituintes: Mirtenol; α-Muroleno; 1,2-dihidro-1,1,6-trimetil Naftaleno; Bisaboleno; β-Lanona; Espatulenol; Oxido de Cariofileno; 3-Ciclohexeno-1-carboxaldeído; 3,4, Cedren-13-ol, 8; Neocloveno-(I) dihidro; Azuleno 1-4-dimetil-7-(1-metila); 2H-Benzociclohepteno-2-ona, 1,4a,5,6,7,8,9,9a-octahidro 4a metil trans e 1, hexahidrofarnesil acetona. A água aromática quando submetida a ensaio alelopático apresentou atividade alelopática inibitória da germinação e do crescimento de hipocótilo de Lactuca sativa, provavelmente devido aos constituintes do óleo essencial. De acordo com análise comparativa dos ensaios alelopáticos, pode-se referir que a influência alelopática é mais intensa ao utilizar-se fração inteira em comparação aos compostos isolados, e que a alelopatografia pode representar um método mais rápido e de fácil visualização de influência alelopática de constituintes impuros. Até este momento, não havia relatos da presença dos constituintes químicos relatados neste trabalho em Aster lanceolatus. Palavras chave: alelopatografia, alelopatia, fitoquímica, atividade antifúngica e antibacteriana. Allelophatic Applied Study from Aster lanceolatus, Willd Abstract The present work accomplished study about Aster lanceolatus, Willd., belonging the Asteraceae family, whose aerial parts were shared in two portions. The first one was composed of flowers and the second one of stems and leaves. Trough the analysis of CG accomplished in the hexan fractions, a presence of β-sitosterol has been verified. Using the results obtained with the allelophatic study of the ethanolics extracts and fractions, it has taken place the phytochemistries studies with the intention of to isolate composed with probable allelophatic activity and to test with a developed technique called allelophatography. It has been verified a presence of spinasterol and kaempferol-rhamnosyl-galactoside, which presented inhibitory influence of the germination and leaves formation when the allelopatography has been submitted. Through the analysis of CG/MS accomplished with the essential oil, thirteen compounds has been verified: myrtenol; α-muurolene; naphthalene, 1,2 dihydro-1,1,6-trimethyl; bisabolene; β-lanona; spathulenol; caryophyllene oxide; 3-cyclohexen-1-carboxaldehyde, 3, 4; cedren-13-ol, 8; neoclovene-(I), dihydro; azulene, 1,4-dimethyl-7-(1-methyle); 2H-benzocyclohepten-2-one, 1, 4a, 5, 6, 7, 8, 9, 9a-octahydro 4a, methyl, trans; 1, hexahydrofarnesyl acetone. The aromatic water when submitted in the allelophatic study showed inhibitory allelophatic activity from the germination and the growth of hypocotyl of Lactuca sativa, probably because the essential oil fractions. In agreement with comparative analysis of the allelophatics rehearsals, it can refer the allelophatic influence is more intense when using complete fraction in comparison with the isolated compounds, and the allelophatography can represent a faster and easier method of visualization from the allelophatic influence of non-pure compounds. From now there have been no reports about the presence of chemistry compounds reported in this work in Aster lanceolatus. Key words: allelophatography, allelophaty, phytochemistry, antifungal and antibacterial activity.

scholarly journals Geographical chemical variability and processing oxidation of volatile compounds of Casearia sylvestris leaves

2021 ◽  
Vol 46 (3) ◽  
pp. 42-48
Author(s):  
Flavio Alexandre Carvalho ◽  
Fernando Bombarda Oda ◽  
Ant�nio Eduardo Miller Crotti ◽  
Eduardo Jos� Crevelin ◽  
Andr� Gonzaga Dos Santos
Keyword(s):  
Chemical Composition ◽  
Essential Oil ◽  
Volatile Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Components ◽  
Caryophyllene Oxide ◽  
Volatile Chemicals ◽  
Leaf Essential Oil ◽  
Casearia Sylvestris ◽  
Main Components

The Casearia sylvestris Sw. dried leaf essential oil (EO) contains sesquiterpenes as the main components. However, the volatile components in the in natura leaves remain unknown. This study compares the volatile chemicals in the in natura leaves and dried leaf EO of two C. sylvestris populations from Atlantic Forest and Cerrado. The volatile compounds were directly analysed by thermal desorption (TD) coupled to gas chromatography mass spectrometry (GC-MS); the dried leaf EO composition was determined by GC-MS. All the identified compounds were sesquiterpenes, and the major components were (E)-caryophyllene, bicyclogermacrene, ?-elemene, spathulenol, and caryophyllene oxide. In both populations, the sesquiterpene hydrocarbon content and the oxygenated sesquiterpene content respectively decreased and increased on going from the in natura leaves to the dried leaf essential oil, indicating that drying and/or hydrodistillation modified the volatile chemical composition by generating oxidation artifacts. Results suggested that (E)-caryophyllene and bicyclogermacrene may be oxidized during the process to yield caryophyllene oxide and spathulenol, respectively. The two C. sylvestris populations also differed in terms of volatile chemical composition.

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