Academic literature on the topic 'Bisabolol oxid A'

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Journal articles on the topic "Bisabolol oxid A"

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Satyal, Prabodh, Samon Shrestha та William N. Setzer. "Composition and Bioactivities of an (E)-β-Farnesene Chemotype of Chamomile (Matricaria Chamomilla) Essential Oil from Nepal". Natural Product Communications 10, № 8 (2015): 1934578X1501000. http://dx.doi.org/10.1177/1934578x1501000835.

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The essential oil of Matricaria chamomilla, collected from Nepal, was obtained by hydrodistillation and analyzed by gas chromatography – mass spectrometry. The major components in Nepalese chamomile oil were ( E)-β-farnesene (42.2%), α-bisabolol oxide A (22.3%), ( E,E)-α-farnesene (8.3%), cis-bicycloether (5.0%), α-bisabolol oxide B (4.5%), and α-bisabolone oxide A (4.0%). A cluster analysis based on the chemical compositions of 48 samples of chamomile oil reported in the literature has revealed seven chemotypes, and the oil from Nepal represents the ( E)-β-farnesene chemotype. The chamomile o
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Abbas, Ahmed Mahmoud, Mohamed Abdelmoneim Seddik, Abd-Allah Gahory, Sabri Salaheldin, and Wagdi Saber Soliman. "Differences in the Aroma Profile of Chamomile (Matricaria chamomilla L.) after Different Drying Conditions." Sustainability 13, no. 9 (2021): 5083. http://dx.doi.org/10.3390/su13095083.

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This experiment was conducted to examine the influence of drying methods on the essential oil of chamomile (Matricaria chamomilla L.) and its chemical composition. Chamomile flower heads were dried using five different methods: sunlight for 72 h; shade for 1 week; oven at 40 °C for 72 h; solar dryer for 72 h; and microwave for 5 min. Drying methods had slight and nonsignificant impacts on dry biomass of flower heads. The highest percentages of oil in flowers (0.35–0.50%) were observed after solar-drying methods, and the lowest percentage of oil was found after microwave drying (0.24–0.33%). Dr
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Slavik, Benedikt, Simon Roehrer, Helene M. Loos, Mirjana Minceva, and Andrea Buettner. "Isolation of sesquiterpenoids from Matricaria chamomilla by means of solvent assisted flavor evaporation and centrifugal partition chromatography." Analytical and Bioanalytical Chemistry 413, no. 17 (2021): 4387–96. http://dx.doi.org/10.1007/s00216-021-03400-w.

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AbstractThe (semi)volatile fraction of Matricaria chamomilla L., an annual herbal plant from the family of Asteraceae, contains high quantities of sesquiterpenes and sesquiterpenoids. A method was developed to achieve isolation and separation of these compounds, using a combination of solvent assisted flavor evaporation (SAFE) and solid support-free liquid-liquid chromatography. The biphasic liquid solvent system n-heptane/ethyl acetate/methanol/water, 5/2/5/2 v/v/v/v (Arizona S) was elaborated as a suitable solvent system for the simultaneous separation of the target compounds. The lab-scale
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Gosztola, Beáta, Szilvia Sárosi, and Έva Németh. "Variability of the Essential Oil Content and Composition of Chamomile (Matricaria recutita L.) affected by Weather Conditions." Natural Product Communications 5, no. 3 (2010): 1934578X1000500. http://dx.doi.org/10.1177/1934578x1000500325.

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In our study we examined the variability of the essential oil content and composition of chamomile (Matricaria recutita L.) during three years (2005-2007). Twenty-eight populations of wild origin and 4 registered cultivars (‘Soroksári 40’, ‘Lutea’, ‘Goral’ and ‘Bona’) were evaluated in open field experiments. It could be established that the experimental populations represented different genetic potential for essential oil accumulation and composition. The best populations of wild growing origin from the Somogy-region and four cultivars produced the highest essential oil contents (above 0.6 g/
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Firat, Zeynep, Fatih Demirci, Betül Demirci, Hasan Kırmızıbekmez та K. Hüsnü C. Baser. "Microbial Transformation of (–)-α-Bisabolol Towards Bioactive Metabolites". Records of Natural Products 15, № 6 (2021): 593–601. http://dx.doi.org/10.25135/rnp.252.2004.1615.

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Bisabolol is one of the bioactive constituents of chamomile. It was aimed to biotransform (–)-α-bisabolol by different fungi for the production of new bioactive metabolites, which was converted to α-bisabolol oxide A and B by Thamnidium elegans. Additionally, the biotransformation by Penicillium neocrassum yielded a new metabolite, which was characterized as 2-(5-methyl-5-(6-methyl-7-oxabicyclo[4.1.0]heptan-3-yl)tetrahydrofuran-2-yl)propan-2-ol = bisafuranol. The substrate and its metabolite mixtures were tested using antioxidant DPPH• scavenging assay. Antimicrobial activity was evaluated by
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Mahdavi, Behnam, Fereshteh Ghorat, Mahda S. Nasrollahzadeh, Mahmood Hosseyni-Tabar, and Hassan Rezaei-Seresht. "Chemical Composition, Antioxidant, Antibacterial, Cytotoxicity, and Hemolyses Activity of Essential Oils from Flower of Matricaria chamomilla var. Chamomilla." Anti-Infective Agents 18, no. 3 (2020): 224–32. http://dx.doi.org/10.2174/2211352517666190528114041.

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Introduction: In this research, we have reported the chemical composition and bioactivity of the essential oil from flowers of Matricaria chamomilla var. Chamomilla (MCCO) for the first time. The essential oil was extracted using a Clevenger-type apparatus. The chemical composition of the essential oil was identified by chromatography methods. DPPH Radical Scavenging Activity (RSA), β-carotene bleaching (BCB), and Ferrous Ion Chelating ability (FIC) were chosen to evaluate the MCCO antioxidant activity. Disc diffusion assay and Mínimum Inhibitory Concentration method (MIC) were selected to inv
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Sakhteman, Amirhossein, Ardalan Pasdaran, Mehdi Afifi, and Azadeh Hamedi. "An Assay on the Possible Effect of Essential Oil Constituents on Receptors Involved in Women’s Hormonal Health and Reproductive System Diseases." Journal of Evidence-Based Integrative Medicine 25 (January 1, 2020): 2515690X2093252. http://dx.doi.org/10.1177/2515690x20932527.

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Aromatic herbal remedies, hydrosols, and essential oils are widely used for women’s hormonal health. Scientific investigation of their major constituents may prevent unwanted infertility cases, fetal abnormalities, and drug-herb interactions. It also may lead to development of new medications. A list of 265 volatile molecules (mainly monoterpenes and sesquiterpenes) were prepared from a literature survey in Scopus and PubMed (2000-2019) on hydrosols and essential oils that are used for women’s hormonal and reproductive health conditions. The PDB (protein data bank) files of the receptors (136
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EL-Hefny, Mervat, Wael Abo Elgat, Asma Al-Huqail, and Hayssam Ali. "Essential and Recovery Oils from Matricaria chamomilla Flowers as Environmentally Friendly Fungicides Against Four Fungi Isolated from Cultural Heritage Objects." Processes 7, no. 11 (2019): 809. http://dx.doi.org/10.3390/pr7110809.

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Recovery oils, obtained from the hydro-distillation of the fresh flowers of Matricaria chamomilla, as well as essential oils, were studied for their environmental purposes in cultural heritage. These oils were assayed for their antifungal activity against the growth of four molds isolated from archaeological manuscripts (Aspergillus niger), museum gypsum board Antique (A. flavus), museum archaeological tissue (A. terreus), and museum organic materials (Fusarium culmorum) of cultural heritage objects. Oils were applied to inhibit the growth of fungi at amounts of 25, 50, 75 and, 100 µL/mL, and
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Ruščić, Mirko, Elma Vuko, Nada Bezić, Dario Kremerb, and Valerija Dunkić. "Croatian Micromeria fruticulosa – Essential Oil Composition and Antiphytoviral Activity." Natural Product Communications 12, no. 7 (2017): 1934578X1701200. http://dx.doi.org/10.1177/1934578x1701200733.

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The essential oil of Micromeria fruticulosa (Lamiaceae) growing wild in Croatia was obtained by hydrodistillation and analyzed by GC and GC/MS. Sixty-four compounds, representing 90.1% of the oil, were identified. The major components were oxygenated monoterpenes and sesquiterpenes with pinocarvone (17.6%), borneol (11.2%), α-bisabolol (10.5%), caryophyllene oxide (4.6%) and linalool (4.5%) as the most abundant. The essential oil showed antiviral activity against CMVsat infection.
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Jablonský, Michal, Helena Ramajová, Aleš Ház, Alexandra Sládková, Andrea Škulcová, and Katarína Čížová. "Comparison of Different Methods for Extraction from Lavender: Yield and Chemical Composition." Key Engineering Materials 688 (April 2016): 31–37. http://dx.doi.org/10.4028/www.scientific.net/kem.688.31.

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A comparative study of accelerated solvent extraction (ASE) with two conventional volatile isolation methods including traditional steam distillation and Soxhlet extraction was performed on lavender. ASE was carried out by butanol (polar protic solvent) or dichloromethane (nonpolar solvent) and the temperature was 120°C. Separation and identification of the components was carried out by GC/MS. The main components of the analysed samples were Linalool (14.79%), α-Terpineol (4.42%), Linalool oxide (furanoid) (2.92%), cis-linalyl oxide (2.8%), α-Bisabolol (1.86%) and Octacosane (1.56%) for steam
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Dissertations / Theses on the topic "Bisabolol oxid A"

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Mendes, Franciane Brackmann. "α-bisabolol e óxido de bisabolol A : atividade antitumoral em linhagens celulares de cânceres do sistema nervoso central". reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/103251.

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Diversas neoplasias podem atingir o sistema nervoso central e dentre elas, os tumores cerebrais são os mais prevalentes. Dentre todos os tumores cerebrais, dois merecem especial atenção: gliomas e meduloblastomas, por serem os mais recorrentes em adultos e crianças, respectivamente. O alfa-bisabolol é um pequeno álcool sesquiterpeno oleoso, que apresenta diversas atividades biológicas dentre elas, citotoxicidade. Apesar dos diversos estudos com essa molécula, pouco se sabe das atividades biológicas de seu análogo natural, o óxido de bisabolol A. Além disso, o sistema purinérgico tem sido relac
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Jiroušková, Hana. "Vliv rostlinných příměsí v heřmánku lékařském na obsah a složení silic." Master's thesis, 2011. http://www.nusl.cz/ntk/nusl-90082.

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Conference papers on the topic "Bisabolol oxid A"

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Moreno Martins Sanchez, Gustavo, Rafael Trinca, and Ângela Maria Moraes. "INCORPORAÇÃO DE ALFA-BISABOLOL EM MEMBRANAS DE POLI(CAPROLACTONA) E POLI(OXIDO DE ETILENO) OBTIDAS POR ELETROFIAÇÃO." In XXV Congresso de Iniciação Cientifica da Unicamp. Galoa, 2017. http://dx.doi.org/10.19146/pibic-2017-78092.

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