A5022049924- Plant Surface Properties and Treatments
- Lignin and Wood Chemistry
- Wood Treatment and Properties
- Horticultural and Viticultural Research
- Postharvest Quality and Shelf Life Management
- Forest ecology and management
- Forest Insect Ecology and Management
- Plant biochemistry and biosynthesis
- Tree Root and Stability Studies
- Botanical Research and Applications
- Phytochemicals and Antioxidant Activities
- Plant Pathogens and Fungal Diseases
- Thermochemical Biomass Conversion Processes
- Global Health Care Issues
- Fermentation and Sensory Analysis
- Biodiesel Production and Applications
- Biofuel production and bioconversion
- Health disparities and outcomes
- Healthcare Systems and Practices
- Health, Medicine and Society
- Retirement, Disability, and Employment
- Health Policy Implementation Science
- Banana Cultivation and Research
- Biological Activity of Diterpenoids and Biflavonoids
- Business and Management Studies
University of Lisbon
2016-2025
Universidade de Brasília
1999-2022
University of Buenos Aires
2021
Agricultural Plant Physiology and Ecology Research Institute
2021
Consejo Nacional de Investigaciones Científicas y Técnicas
2021
Câmara Municipal de Lisboa
2012-2020
Clark University
2018
University of Georgia
2018
Lusíada University of Lisbon
2017
Universidade Federal de Mato Grosso
2016
Heartwood and sapwood of Quercus faginea were evaluated in relation to summative chemical composition non-polar polar extracts composition, including an assessment antioxidant properties (DPPH FRAP). Twenty trees from two sites Portugal analysed. had approximately times more solvent extractible compounds than (on average 19.0% 9.5%). The lipophilic below 1%, most them e.g. ethanol-soluble corresponded 65% total extractives heartwood 43% sapwood. Lignin content was similar (28.1% 28.6%...
The bark from Quercus faginea mature trees two sites was chemically characterized for the first time. barks showed following composition: ash 14.6%, total extractives 13.2%, suberin 2.9% and lignin 28.2%. polysaccharides were composed mainly of glucose xylose (50.3% 35.1% all monosaccharides respectively) with 4.8% uronic acids. composition was: ω-hydroxyacids 46.3% compounds, ɑ,ω-alkanoic diacids 22.3%, alkanoic acids 5.9%, alkanols 6.7% aromatics 6.9% (ferulic acid 4.0%). Polar extracts...
False banana /Ensete ventricosum [Welw.] Cheesman/ is exploited as a food crop in Ethiopia where it represents an important staple food. The plant harvested and large amounts of biomass residues are originated, mainly from the pseudo stem (i.e., fiber bundles obtained leaf sheaths after being scrapped to produce starchy food) inflorescence stalk. These materials were studied relation their summative chemical composition, composition lignin, lipophilic polar extracts. Moreover, structural...
Abstract Cork and phloem from Pseudotsuga menziesii outer bark were separated, fractionated the 40- to 60-mesh fractions chemically analyzed. showed a different grinding behavior with highest yields for cork phloem, respectively, fraction (31.4%) <0.180-mm (49.2%). chemical composition was (% o.d. mass): ash 0.9%; extractives 29.2% (mostly polar, 23.5%); lignin 16.8%, suberin 36.2%. Polysaccharides (16.9%) contained glucose (55.4% of total neutral carbohydrates), xylose (13.3%), mannose,...
Climate change induces in the Mediterranean region more frequent and extreme events, namely, heat waves droughts, disturbing forest species affecting their productivity product quality. The cork oak (Quercus suber) is present along western basin its outer bark (cork) sustainably collected used for several products, mainly wine bottle stoppers. Since most properties arise from chemical composition, this research studies effect of drought on composition (suberin, lignin, polysaccharides...
Bark and the tops of E. globulus trees were considered for kraft pulping under industrial conditions. Pulping experiments included wood, bark, tops, composite samples. Top wood had an average chemical composition most similar to that but with somewhat lower cellulose content (52.8% vs. 56.9%) higher lignin (18.8% 17.8%). There was also a small difference between non-polar extractives, which (2.0% 1.4%). less favorable more especially polar extractives (5.3% 1.6%) 1% NaOH solubility (19.9%...
The bark of Anadenanthera peregrina (L.) Speg and colubrina (Vell.) Brenan were characterized in relation to anatomical chemical features. barks similar included a thin conducting phloem, largely dilated sclerified non-conducting rhyridome with periderms phellem interspersed by cortical tissues. Only small differences between species observed that cannot be used alone for taxonomic purposes. summative composition A. was respectively: 8.2% 7.7% ash; 28.8% 29.3% extractives; 2.4% 2.6% suberin;...
Abstract Eucalyptus urophylla hybrids are important raw materials for the forest industry in Brazil, and large quantities of barks available at mill site that may be used added-value products. The chemical composition six commercial clones E. × grandis , Camaldulensis undisclosed was studied. had similar composition, on average (data based oven dry bark): 16% extractives, mainly corresponding to polar compounds soluble ethanol water, 19% lignin, 47% polysaccharides, 1% suberin, 2% ash....