A5047342680- Analytical chemistry methods development
- Analytical Chemistry and Chromatography
- Essential Oils and Antimicrobial Activity
- Phytochemicals and Antioxidant Activities
- Advanced Chemical Sensor Technologies
- Pharmaceutical and Antibiotic Environmental Impacts
- Pesticide Residue Analysis and Safety
- Electrochemical Analysis and Applications
- Phytochemistry and Biological Activities
- Pharmacological Effects and Assays
- Fermentation and Sensory Analysis
- Cholinesterase and Neurodegenerative Diseases
- Environmental Toxicology and Ecotoxicology
- Natural product bioactivities and synthesis
- Forensic Toxicology and Drug Analysis
- Marine Biology and Environmental Chemistry
- Mass Spectrometry Techniques and Applications
- Polysaccharides Composition and Applications
- Seaweed-derived Bioactive Compounds
- Adsorption and biosorption for pollutant removal
- Natural Antidiabetic Agents Studies
- Biosensors and Analytical Detection
- Bioactive Compounds and Antitumor Agents
- Petroleum Processing and Analysis
- Botanical Research and Applications
University of Lisbon
2015-2024
University of Trás-os-Montes and Alto Douro
2024
Universidade Federal de Minas Gerais
2019
Exact Sciences (United States)
2019
Rede de Química e Tecnologia
2017
Faculdade de Tecnologia e Ciências
2017
Instituto Politécnico de Lisboa
2017
Ab Analitica (Italy)
2012
International Council on Mining and Metals
2005
Madeira Tecnopolo
1999
Abstract BACKGROUND There is a growing interest in industry to replace synthetic chemicals by natural products with bioactive properties. Aromatic plants are excellent sources of compounds that can be extracted using several processes. As far as oregano concerned, studies lacking addressing the effect extraction processes bioactivity extracts. This study aimed characterise vitro antioxidant and antibacterial properties ( Origanum vulgare ) essential oil extracts (in hot cold water, ethanol),...
The phenolic profile and the antioxidant activity of Rocha pear, a Portuguese pear cultivar, were determined compared with commercially available varieties Comice, Abate, General Leclerc Passe Crassane. Phenolic composition methanolic extracts these pears was by high performance liquid chromatography diode array detection (HPLC-DAD), while activities evaluated using three complementary test systems: DPPH radical scavenging activity, ferric reducing power capacity β-carotene/linoleic acid...
BACKGROUND: This study aimed to evaluate the antioxidant and antimicrobial activity of extracts (aqueous, ethanolic essential oil) from Satureja montana characterise chemical composition its oil. RESULTS: L. oil had relatively high activities against seven species bacteria tested. In contrast, aqueous did not reveal antibacterial activity, ethanol extract was effective Salmonella typhimurium. The major volatile constituents were carvacrol (306 g L−1), thymol (141 methyl ether (63 L−1)....
Laurus nobilis L. is an aromatic plant frequently used as a spice in Mediterranean cookery and traditional medicine for the treatment of several infectious diseases. The aim this study was to characterise antibacterial antioxidant activities bay laurel essential oil (EO), ethanolic extract (EE) hot/cold aqueous (AE). major components detected EO were eucalyptol (27.2%), α-terpinenyl acetate (10.2%), linalool (8.4%), methyleugenol (5.4%), sabinene (4.0%) carvacrol (3.2%). exhibited strong...