A5051764857- Essential Oils and Antimicrobial Activity
- Phytochemicals and Antioxidant Activities
- Phytochemistry and Biological Activities
- Bee Products Chemical Analysis
- Insect and Pesticide Research
- Postharvest Quality and Shelf Life Management
- Plant Physiology and Cultivation Studies
- Allelopathy and phytotoxic interactions
- Plant biochemistry and biosynthesis
- Plant Micronutrient Interactions and Effects
- Natural product bioactivities and synthesis
- Botanical Research and Applications
- Plant and animal studies
- Nanocomposite Films for Food Packaging
- Insect Pest Control Strategies
- Plant Stress Responses and Tolerance
- Chemical synthesis and alkaloids
- Agricultural and Food Sciences
- Traditional and Medicinal Uses of Annonaceae
- Healthcare and Venom Research
- Plant chemical constituents analysis
- Plant Pathogens and Fungal Diseases
- Microencapsulation and Drying Processes
- Antioxidant Activity and Oxidative Stress
- Free Radicals and Antioxidants
Universidade Federal de Rondônia
2025
University of Algarve
2015-2024
University of Ss. Cyril and Methodius in Trnava
2020
University of Bisha
2020
Manouba University
2020
Faculdade de Tecnologia e Ciências
2020
University of Lisbon
1994-2013
Institute for Biotechnology and Bioengineering
2011
Lusíada University of Lisbon
2011
Instituto de Fermentaciones Industriales
2010
Abstract Antioxidant properties have been attributed to the essential oils but a great diversity of results has reported, mainly chemical composition and tests used. In fact, several in vitro assays for determination antioxidant ability They can be divided into two main groups: those that evaluate lipid peroxidation measure free radical scavenging ability. present study, brief description mechanism involved majority techniques used evaluation activity is given. At same time, activities some...
The commercial essential oils of Citrus aurantium L., Cupressus sempervirens Eucalyptus globulus Labill., Foeniculum vulgare Mill. and Thymus vulgaris isolated by steam distillation a company Morocco were evaluated in terms vitro antioxidant activity through several methods. In acetylcholinesterase inhibitory was also determined. limon (L.) Burm. f. oil studied, but it obtained peel expression. best T. oil, independent the method used, mainly due to presence phenolic monoterpenes thymol...
Aims: Thymus species are wild mostly found in the arid lands of Portugal. Possible antimicrobial properties essential oils have been investigated. The chemical composition and activity mastichina (L) L. subsp. mastichina, T. camphoratus lotocephalus from different regions Portugal were analysed. Methods Results: Hydrodistillation was used to isolate analyses performed by gas chromatography (GC) GC coupled mass spectrometry. tested disc agar diffusion technique against Candida albicans,...
The composition of the essential oils Origanum and Thymus species restricted to Algeria North Africa region was determined. Antioxidant antibacterial activities isolated were also oregano plants strongly characterized by p-cymene (16.8-24.9%), gamma-terpinene thymol (8.4-36.0%), carvacrol (1.1-29.7%), a chemotype for floribundum alpha-terpineol numidicus being described first time. strains Listeria monocytogenes tested relatively resistant action either or species. All possessed antioxidant...
Propolis is a resinous substance collected by honeybees to seal honeycomb, which has been used in folk medicine due its antimicrobial and antioxidant properties. In the present study, water methanol were extract phenols flavonoids from propolis thirteen different areas Algarve region during winter spring. The ABTS•+, DPPH•, O2•- scavenging capacity, metal chelating activity also evaluated samples. Methanol was more effective than extracting total (2.93-8.76 mg/mL) (0.93-2.81 mg/mL). Flavones...
The essential oils from Foeniculum vulgare commercial aerial parts and fruits were isolated by hydrodistillation, with different distillation times (30 min, 1 h, 2 h 3 h), analyzed GC GC-MS. antioxidant ability was estimated using four distinct methods. Antibacterial activity determined the agar diffusion method. Remarkable differences, worrying quality safety point of view, detected in oils. trans-Anethole (31-36%), alpha-pinene (14-20%) limonene (11-13%) main components essentials oil F....
Abstract The present study evaluated the physicochemical characteristics and antioxidant activity of 13 commercial honeys from diverse floral origin, produced in Portugal. values electrical conductivity cardoon pennyroyal were superior to maximum limits defined by European legislation. Citrus, strawberry tree, 1 sample lavender had diastase below those determined Strawberry pennyroyal, highest amounts potassium that coincided with conductivity. tree honey was most effective as along heather...
The aim of this study was to evaluate the adaptation response Staphylococcus aureus, methicillin-resistant S. aureus (MRSA), and Listeria monocytogenes essential oil (EO), eugenol, citral. minimum inhibitory concentration eugenol citral determined by agar dilution microdilution. Adaptation done sequential exposure pathogens increasing concentrations oils. M2-A9 standard used determine antibiotic susceptibility. effect on adherence ability evaluated crystal violet assay. impact virulence...
Abstract The essential oils of Thymus caespititius , T. camphoratus capitellatus carnosus pulegioides zygis subsp. and sylvestris collected in different regions Portugal, including the Azores islands, were evaluated for preventing lipid peroxidation scavenging free radicals, hydroxyl superoxide anions. oil possessed best capacity (IC 50 = 0.030 ± 0.003 mg/ml), immediately followed by isolated from Portugal. IC values ranged 0.066 to 0.087 0.001 mg/ml samples Alcanena Duas Igrejas,...