نتایج جستجو برای: germacrene b

تعداد نتایج: 899705  

2009
Glauciemar Del-Vechio-Vieira Orlando Vieira de Sousa Mariza Abreu Miranda Luci Senna-Valle Maria Auxiliadora Coelho Kaplan

The chemical composition, analgesic and anti-inflammatory properties of essential oil from Ageratum fastigiatum were investigated. The main compounds found in the essential oil were germacrene D, α-humulene and β-cedrene. The oil, with LD50 of 2.50 g/kg, inhibited the acetic acid-induced writhing at the dose of 200 mg/kg. In the formalin test, the oil inhibited the first phase (200 mg/kg) and t...

2017
Chaker El-Kalamouni Petras Rimantas Venskutonis Bachar Zebib Othmane Merah Christine Raynaud Thierry Talou

Background: This study aimed to examine the composition of essential oil (EO) of A. millefolium aerial parts wild plant grown in France and evaluate its antioxidant, antibacterial, and antifungal activities. Methods: GC-MS was used to identify the chemical composition of EO. Antioxidant activity (AA) of EO was evaluated by Oxipres method. Antimicrobial activity of EO was evaluated by Agar-well ...

Journal: :Molecules 2013
Marcelo S Silvério Glauciemar Del-Vechio-Vieira Míriam A O Pinto Maria S Alves Orlando V Sousa

The chemical composition of the essential oils obtained by hydrodistillation of different parts of Eremanthus erythropappus, including leaves, branches and inflorescences, was investigated by Gas Chromatography and Gas Chromatography/Mass Spectrometry. The antimicrobial activity of the oils was assessed by the disc diffusion and microdilution methods, while the antioxidant activity was evaluate...

Journal: :Natural Product Communications 2023

Background Anthriscus caucalis is a non-native plant in North America with invasive potential. As part of our interests essential oils the Great Basin, wild-growing sample A. was collected southwestern Idaho. Methods The obtained by hydrodistillation and analyzed gas chromatographic methods (GC–MS, GC–FID, chiral GC–MS). Results major components oil were cis-chrysanthenyl acetate (42.3%), myrce...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2003
Betül Demirci Mehmet Y Dadandi Dietrich H Paper Gerhard Franz Kemal Hüsnü Can Başer

Phlomis linearis Boiss. & Bal. of the Lamiaceae family growing in central, east and southeast Anatolia is an endemic species for Turkey. The essential oil obtained from the aerial parts by hydro distillation was subsequently analyzed by GC/MS. The main components of the oil were found as beta-caryophyllene (24.2%), germacrene D (22.3%) and caryophyllene oxide (9.2%), among 49 identified compoun...

2010
R. Uma Devi D. Lakshmi N. Aarthi

The methanolic leaf extract of Artemisia parviflora (APLE) tested against Anopheles stephensi larvae and pupae and recorded the mortality rate, LC 50 and LC 90 values. This investigation revealed that this leaf extract possess higher toxicity against Anopheles stephensi. The biological activity of the plant extract might be due to the presence of active compounds âCaryophyllene, germacrene D, C...

Journal: :Molecules 2012
Juliana Lanna Passos Luiz Claudio Almeida Barbosa Antonio Jacinto Demuner Elson Santiago Alvarenga Cleiton Moreira da Silva Robert Weingart Barreto

A comparative study of the chemical composition of essential oils of two very similar species of the Verbenaceae family (Lantana camara and L. radula) revealed that the main components of essential oil of L. camara were germacrene-D (19.8%) and E-caryophyllene (19.7%), while those of L. radula were E-caryophyllene (25.3%), phytol (29.2%) and E-nerolidol (19.0%). We have hypothesized that the ob...

Journal: :Molecules 2011
Nada Bezić Elma Vuko Valerija Dunkić Mirko Ruščić Ivica Blažević Franko Burčul

The purpose of this study was to compare the essential oil profiles of four Croatian Teucrium species (Lamiaceae), as determined by GC and GC/MS, with their antiphytoviral efficiency. A phytochemical analysis showed that T. polium, T. flavum, T. montanum and T. chamaedrys are characterized by similar essential oil compositions. The investigated oils are characterized by a high proportion of the...

2015
Andréa Santos da Costa Maria de Fátima Arrigoni-Blank José Luiz Sandes de Carvalho Filho Aléa Dayane Dantas de Santana Darlisson de Alexandria Santos Péricles Barreto Alves Arie Fitzgerald Blank

The present study aimed to chemically characterize 31 accessions and seven cultivars of basil. The percentage composition of the essential oils of the accessions and cultivars was based on the 14 most abundant constituents: 1,8-cineole, linalool, methyl chavicol, neral, nerol, geraniol, geranial, methyl cinnamate, β-bourbonene, methyl eugenol, α-trans-bergamotene, germacrene-D, epi-α-cadinol, a...

2011
Zhengwen Yu Bochu Wang Fumei Yang Qianyun Sun Zhannan Yang Liancai Zhu

The chemical composition of the essential oils of flower at the pre-flowering, full-flowering and post-flowering stage of A. annua was analyzed by GC and GC/MS and sixty-two components were identified. The main compounds in the pre-flowering oil were β-myrcene (37.71%), 1, 8-cineole (16.11%) and camphor (14.97%). The full-flowering oil contained predominantly caryophyllene (19.4%), germacrene D...

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