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 Composition of essential oil and allelopathic activity of aromatic water of Aster lanceolatus Willd: (Asteraceae)

2009 ◽  
Vol 45 (3) ◽  
pp. 469-474 ◽  
Author(s):  
Josiane de Fátima Gaspari Dias ◽  
Obdúlio Gomes Miguel ◽  
Marilis Dallarmi Miguel
Keyword(s):  
Essential Oil ◽  
Lactuca Sativa ◽  
Extraction Process ◽  
Caryophyllene Oxide ◽  
Allelopathic Activity ◽  
Germination And Growth

The essential oil obtained from flowers of Aster lanceolatus was submitted the CG-MS and presented as result thirteen substances with largest concentration; among them, the caryophyllene oxide with the larger one. The aromatic water obtained during the extraction process of this essential oil was forwarded to allelopathic test, and demonstrated to be capable to inhibit the germination and growth of Lactuca sativa.

scholarly journals Chemical Composition of the Essential Oil of Croton bonplandianus from India

2014 ◽  
Vol 9 (2) ◽  
pp. 1934578X1400900
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Germacrene D ◽  
Total Oil

The essential oil obtained from the aerial parts of Croton bonplandianus Baill. was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 37 compounds have been identified, representing 96.2% of the total oil. The main constituents were identified as β-caryophyllene (16.7%), germacrene D (14.7%), borneol (8.3%), Z-β-damascenone (6.(%), isobornyl acetate (6.2%), α-humulene (6.1%), germacrene A (5.2%) and caryophyllene oxide (4.5%). The oil was rich in sesquiterpene hydrocarbons (60.1%).

scholarly journals Chemical investigation of the essential oil of Laggera crispata (Vahl) Hepper & Wood from India

2011 ◽  
Vol 76 (4) ◽  
pp. 523-528 ◽  
Author(s):  
Ram Verma ◽  
Rajendra Padalia ◽  
Chandan Chanotiya ◽  
Amit Chauhan ◽  
Anju Yadav
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Chemical Investigation ◽  
Gas Chromatography Mass Spectrometry ◽  
Western Himalayas ◽  
Caryophyllene Oxide ◽  
Oil Composition ◽  
Aerial Parts ◽  
Total Oil

Hydrodistilled essential oil of the aerial parts of Laggera crispata (Vahl) Hepper & Wood, collected from the Kumaon region of the western Himalayas was analysed by gas chromatography and gas chromatography-Mass Spectrometry. Eighty constituents, accounting for 83.9 % of the total oil composition, were identified. The oil was mainly dominated by sesquiterpenoids (45.3 %) and benzenoid compounds (33.9 %). Among them, 2,5-dimethoxy-p-cymene (32.2 %), 10-epi-?-eudesmol (14.7 %), ?-caryophyllene (6.9 %), and caryophyllene oxide (5.4 %) were major components of the oil.

scholarly journals Chemical Composition of the Essential Oil of Baccharoides lilacina from India

2013 ◽  
Vol 8 (3) ◽  
pp. 1934578X1300800
Author(s):  
Rajesh K. Joshi
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Essential Oil ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Caryophyllene Oxide ◽  
Oil Composition ◽  
Aerial Parts ◽  
Sesquiterpene Hydrocarbons ◽  
Total Oil

The essential oil composition from the aerial parts of Baccharoides lilacina (Dalzell & A. Gibson) M. R. Almeida was analyzed by gas chromatography (GC) and gas chromatography/mass spectrometry (GC/MS). A total of 41 compounds have been identified, representing 97.4% of the total oil. The main constituents were identified as β-caryophyllene (27.7%), epi-α-cadinol (25.1%), caryophyllene oxide (9.9%), α-muurolol (7.6%), α-cadinene (6.1%) and α-cadinol 4.5%). The oil was found to be rich in oxygenated sesquiterpenes (47.1%) and sesquiterpene hydrocarbons (46.2%).

scholarly journals Essential Oil Composition of Eryngium Campestre L. Growing in Different Soil Types. A Preliminary Study

2008 ◽  
Vol 3 (7) ◽  
pp. 1934578X0800300 ◽  
Author(s):  
Jesús Palá-Paúl ◽  
Jaime Usano-Alemany ◽  
A. Cristina Soria ◽  
M. José Pérez-Alonso ◽  
Joseph J. Brophy
Keyword(s):  
Essential Oil ◽  
Acid Soil ◽  
Essential Oil Composition ◽  
Alkaline Soil ◽  
Oil Composition ◽  
Aerial Parts ◽  
Germacrene D ◽  
Stems And Leaves ◽  
High Concentrations ◽  
Exhaustive Study

The essential oil composition of the aerial parts of four populations of Eryngium campestre has been analyzed by GC and GC/MS. Samples growing in different types of soil were gathered at the same phenological state. A total of 84 compounds have been identified from the different samples under analysis. Qualitative and quantitative differences were found between inflorescences (I) and stems and leaves (SL) of the different populations. The main constituents of the inflorescences were identified as germacrene D (30.3-40.3%), β-curcumene (0.7-22.2%), myrcene (3.0-21.7%) and ( E)-β-farnesene (0.1-19.0%). The type of soil seemed to exert an influence on the chemical composition of the oils of this species. Whereas high concentrations of myrcene were found in the populations growing in acid soil, its concentration was significantly lower in the alkaline populations. β-Curcumene concentration was higher in the populations growing in alkaline soil and was practically absent from the acid soil population. Regarding the stems and leaves, only germacrene D (31.1-42.4%) and myrcene (0.5-23.15) were considered as main constituents, their composition not being affected by the type of soil. However, terpenoid distribution was clearly influenced by the soil, with the population growing in acid soil containing a greater amount of monoterpenes than that of the population growing in alkaline soil. A more exhaustive study needs to be carried out in order to confirm if the biosynthesis of these compounds could be influenced by the availability of Ca2+ in the soil.

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.

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 Essential Oil Composition of the Aerial Parts of Bupleurum Candollii

2008 ◽  
Vol 3 (11) ◽  
pp. 1934578X0800301
Author(s):  
Rajesh K. Joshi ◽  
Chitra Pande
Keyword(s):  
Essential Oil ◽  
Methyl Ether ◽  
Essential Oil Composition ◽  
Caryophyllene Oxide ◽  
Oil Composition ◽  
Aerial Parts ◽  
Total Oil

The essential oil composition of the aerial parts of Bupleurum candollii Wall. ex DC. was analyzed by GC and GC/MS. A total of 19 compounds have been identified, representing 91.8% of the total oil. The main constituents were identified as β-caryophyllene (34.1%), caryophyllene oxide (20.7%), dehydro-aromadendrene (7.6%) and thymol methyl ether (7.2%).

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 Essential Oil Constituents ofTanacetum cilicicum: Antimicrobial and Phytotoxic Activities

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Zeynep Ulukanli ◽  
Salih Demirci ◽  
Murat Yilmaztekin
Keyword(s):  
Essential Oil ◽  
Mediterranean Region ◽  
Industrial Applications ◽  
Caryophyllene Oxide ◽  
East Mediterranean ◽  
First Report ◽  
Oxygenated Monoterpenes ◽  
Aerial Parts ◽  
Antimicrobial Assay ◽  
East Mediterranean Region

Aerial parts ofTanacetum cilicicumwere hydrodistillated for 3 h using Clevenger. Essential oil (EO) yield was 0.4% (v/w). According to the GC/MS analyses, EO ofT. cilicicumconsisted of monoterpenes [α-pinene (2.95 ± 0.19%), sabinene (2.32 ± 0.11%), and limonene (3.17 ± 0.25)], oxygenated monoterpenes [eucalyptol (5.08 ± 0.32%), camphor (3.53 ± 0.27%), linalool (7.01 ± 0.32%),α-terpineol (3.13 ± 0.23%), and borneol (4.21 ± 0.17%)], and sesquiterpenes [sesquisabinene hydrate (6.88 ± 0.41%), nerolidol (4.90 ± 0.33%),α-muurolol (4.57%  ± 0.35), spathulanol (2.98 ± 0.12%), juniper camphor (2.68 ± 0.19%), (-)-caryophyllene oxide (2.64 ± 0.19%), 8-hydroxylinalool (2.62 ± 0.15%), andΔ-cadinene (2.48 ± 0.16%)]. In the antimicrobial assay, MIC/MBC values of the EO were the most significant onB. subtilis(0.39/0.78 µL/mL) andB. cereus(0.78/1.56 µL/mL).The most prominent phytotoxic activities of the EO were observed onL. sativa,L. sativum, andP. oleracea. The results of the present study indicated that EO ofT. cilicicumincludes various medicinally and industrially crucial phytoconstituents that could be in use for industrial applications. The finding of this study is the first report on this species from the East Mediterranean region.

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