A5058237204- Essential Oils and Antimicrobial Activity
- Biodiesel Production and Applications
- Phytochemistry Medicinal Plant Applications
- Allelopathy and phytotoxic interactions
- Traditional and Medicinal Uses of Annonaceae
- Phytochemistry and Biological Activities
- Agricultural and Food Sciences
- Enzyme Catalysis and Immobilization
- Bee Products Chemical Analysis
- Sesquiterpenes and Asteraceae Studies
- Weed Control and Herbicide Applications
- Plant biochemistry and biosynthesis
- Thermal and Kinetic Analysis
- Chemical Thermodynamics and Molecular Structure
- Insect Pest Control Strategies
- Phytochemicals and Antioxidant Activities
- Alkaloids: synthesis and pharmacology
- Thermochemical Biomass Conversion Processes
- Biological Activity of Diterpenoids and Biflavonoids
- thermodynamics and calorimetric analyses
- Bioactive Natural Diterpenoids Research
- Ethnobotanical and Medicinal Plants Studies
- Food Chemistry and Fat Analysis
- Antibiotic Resistance in Bacteria
- Natural product bioactivities and synthesis
Universidade Estadual de Mato Grosso do Sul
2015-2024
Natura (Brazil)
2024
European Union of Medical Specialists
2011-2022
Universidade Regional de Blumenau
2012-2019
Centro Científico Tecnológico - Tucumán
2015
Universidade Federal de Mato Grosso do Sul
2007-2011
Universidade Federal de Santa Maria
2002-2010
The chemical composition of the essential oils isolated from leaves and barks Cinnamomum verum Ocotea catharinensis (Lauraceae) species was characterized by gas chromatography-flame ionization detection (GC-FID) chromatography-mass spectrometry (GC-MS) analyses. In C. oils, 14 21 compounds were identified in bark, representing 85.3 85.9% total respectively. For O. catharinensis, 30 32 equivalent to 87.7 89.2% oil composition, It observed that are considerably rich monoterpenes (> 77%),...
The essential oil obtained from the stem bark of Croton urucurana Baillon (Euphorbiaceae) was analysed by GC and GC-MS. 83 compounds were identified borneol (14.7%), bornyl acetate (5.2%), 1-isopropyl-7-methyl-4-methylene-1,3,4,5,6,8-hexahydro-2H-naphthalen-4a-ol sesquicineole (10.5%) gamma-gurjunene epoxide (5.4%) main components. EC50 value crude in DPPH free radical scavenging assay 3.21 mg mL-1. fraction that presented antioxidant activity purified prep-TLC on silica gel. GC-MS analysis...
Thermal lens (TL) spectroscopy in a dual-beam configuration was applied study on biodiesel and oil–biodiesel blends. The goal of this work to evaluate the behavior thermal mass diffusivities that arose when oil added verify capability method identify small concentrations triacylglycerol biofuel. When transitioning from pure blend consisting 98% 2% soybean oil, diffusivity decreased 15% increased 59%, which indicated both parameters can provide significant information about presence...
The essential oils from the aerial parts of leaves, fruits and flowers Zanthoxylum rhoifolium Southern Brazil (Rio Grande do Sul), were analysed by GC, GC/MS, chiral phase gas chromatography (CPGC). Forty-eight compounds identified oils. major constituents oil leaves germacrene D (34 %) bicyclogermacrene (23 fruits, menth-2-en-1-ol (46.2 %), β-myrcene (30.2 (-)-linalool (15 (-)-α-terpineol (8.45 %). β-Myrcene (65 (5.4 dominate flowers. bioactive with antibacterial activity against...
The essential oils obtained by hydrodistillation from samples of propolis manufactured in three regions Rio Grande do Sul State at Brazil, were analyzed through CG, CG-MS and chiral phase gas chromatography (CPGC).These analyses display the presence with elevated oil purport, when compared plants.The yields until 3.8%.The exhibited similar composition, predominance monoterpenes a-pinene (57-63%), b-pinene (12.5-30.8%)and limonene (1.5-11.2%).In analysis these constituents observed...
Hydrocotyle bonariensis Lam (ARALIACEAE).The volatile oil obtained from the leaves of (Araliaceae) was analyzed by GC, Chiral-GC and GC-MS.It identified 14 compounds monoterpene (+)-limonene (53.6%) sesquiterpene γ-muurolene (10.5%) were main components.The allelopathic effects evaluated against two seeds, Lactuca sativa Allium cepa.The results show that exhibited inhibition in germination seedling growth plants species relative to control.
A bioatividade das frações semipurificadas (hexânica, acetato de etila e etanol-água) do extrato etanólico partes aérea S. occidentalis foi avaliada através ensaios germinação crescimento Lactuca sativa (alface), Lycopersicon esculentum (tomate), Allium cepa (cebola) Triticum aestivum (trigo), em laboratório. Foram utilizadas três concentrações (250, 500, 1000 mg L-1) cada fração um controle não tratado, com quatro repetições 50 sementes. Os bioensaios revelaram que todas as atrasaram a...
The essential oils of Poiretia latifolia Vogel, native and cultivated leaves (Samples A B, respectively) flowers (sample C), were obtained by hydrodistillation analyzed GC, GC/MS chiral phase gas chromatography (CPGC). Twenty-four compounds identified, representing 99.25, 99.26 99.23% the oils, respectively. major constituents monoterpenes (S)-(-)-limonene (16.05, 27.60, 15.60%, respectively), (1R, 4R)-trans-(+)-dihydrocarvone (18.05, 0.66 77.80%, (R)-(-)-carvone (61.05, 64.20 4.50%,...
Abstract The essential oils from the stem barks and leaves of Croton urucurana Baillon (Euphorbiaceae) were analyzed by GC-FID GC-MS. 100 compounds identified borneol (14.7 %), bornyl acetate (5.2 cadina-4,10(14)-dien-1α-ol sesquicineole (10.5 %) γ-gurjunene epoxide (5.4 main components in oil steam barks. was rich sesquiterpenoids,mainly germacrene-D (15.2 bicyclogermacrene (36.4 %). vitro cytotoxicity evaluated against nine cancer cell lines herbicidal effects two seeds. antimicrobial...
We investigated antioxidant capacity, phenolic content and phytotoxic effects in seven species of fruit native to Brazil: Acrocomia aculeata, Hymenaea stigonocarpa, Tamarindus indica, Byrsonima intermedia, Psidium firmum, Myrciaria cauliflora Ficus obtusifolia. Phytotoxic were assessed from crude ethanol extracts semipurified fractions. In four the fruits, total content, as determined by Folin-Ciocalteu assay, was higher peel than pulp. found that correlated significantly with capacity....
The essential oil of roots Jatropha ribifolia, obtained by hydrodistillation, was characterized in terms its chemical composition chromatographic method with flame ionization detection (GC-FID) and gas chromatography coupled to electron mass spectrometry (GC-MS).The analyses identification pointed fragmentation pattern retention index revealed the presence 49 compounds, representing 91.4% total oil, 39.5% monoterpenes, 43.0% sesquiterpenes 8.5% phenylpropanoids.The major compounds were...
CHEMICAL AND BIOLOGICAL STUDIES OF Microgramma vacciniifolia (LANGSD.& FISCH.)COpEL (pOLypODIACEAE).Chemical studies with aerial parts of (Langsd.& Fisch.)Copel.afforded β-sitosterol, hopan-22-ol, 6-metoxiapinenin-7-O-β-D-allopyranoside and a mixture containing ethyl esters carboxilic acids.The structures the coumpounds were elucidated by spectroscopy GC-MS analysis.The total phenolics contents crude extract fractions determined Folin-Ciocalteau method.The antioxidant activity was evaluated...
Chocolate and green banana biomass (GBB) are nutritious foods that benefit well-being health. GBB adds nutritional value, acceptance, benefits due to its fiber content, resistant starch, low glycemic index. Adding chocolate with high cocoa content (approx. 70%) was evaluated by physicochemical, microbiological, sensory properties. Samples were analyzed for composition, plastic viscosity, analysis, particle size, water activity. The results showed chocolates added have moisture, lipids,...