A5091030450- Polysaccharides and Plant Cell Walls
- Polysaccharides Composition and Applications
- Fungal Biology and Applications
- Microbial Metabolites in Food Biotechnology
- Lichen and fungal ecology
- Mycorrhizal Fungi and Plant Interactions
- Food composition and properties
- Seaweed-derived Bioactive Compounds
- Botany and Plant Ecology Studies
- Postharvest Quality and Shelf Life Management
- Botanical Research and Applications
- Phytochemicals and Antioxidant Activities
- Biocrusts and Microbial Ecology
- Plant Pathogens and Fungal Diseases
- Natural Compound Pharmacology Studies
- Advanced Cellulose Research Studies
- Gut microbiota and health
- Oral health in cancer treatment
- Ginkgo biloba and Cashew Applications
- Biofuel production and bioconversion
- Phytochemistry and Biological Activities
- Natural Antidiabetic Agents Studies
- Probiotics and Fermented Foods
- Psidium guajava Extracts and Applications
- Biochemical Analysis and Sensing Techniques
Universidade Federal do Paraná
2016-2025
Universidade Federal de Pernambuco
2024
Universidade Estadual do Oeste do Paraná
2004-2005
Xyloglucans and pectic polymers can be obtained from a variety of plants ubiquitous in the human diet, however, their fermentability colon consequent nutritional benefits are poorly understood. Here, we evaluated metabolite profiles bacterial shifts during vitro fecal fermentations two isolated xyloglucan. Depending on chemical structure, were more acetogenic or propiogenic. Xyloglucan fermentation also resulted elevated propionate if compared to FOS. Bacteroides plebeius, B. uniformis,...
Passion fruit peel (PFP) is a by-product from the processing industry, accounting for approximately 50 % of weight. It well known its health properties, although few studies evaluated rheological properties. PFP polysaccharides (PFPP) contain high methoxyl pectin (HMP), specifically 70 methyl-esterified homogalacturonan. Flow behaviour analysis PFPP (with or without sucrose) revealed shear-thinning non-Newtonian behaviour. Dynamic oscillatory tests showed weak gel-like behaviour, even...
After removal of starch, cell wall polysaccharides seeds quinoa were studied. They extracted successively with water and aq. 10% KOH. The fractionated purified by freeze–thaw treatment sequential ultrafiltration through membranes. fractions (PQW, K2-30EM, K1-10RM K1-30RM) analyzed sugar composition, HPSEC, methylation 13C NMR spectroscopy analysis. results showed that PQW consisted a linear arabinan (1 → 5)-linked α-l-arabinofuranosyl units. Fractions K1-30RM related to rhamnogalacturonan...
Cell wall polysaccharides from leaves of Stevia rebaudiana were extracted successively with water and aq. 10% KOH. After the purification steps, homogeneous fractions (SFW-10RM SSFK-10RM) analyzed by sugar composition, HPSEC, methylation (13)C NMR spectroscopy analysis. The results showed that SFW-10RM is a pectic arabinogalactan an unusual β-(1→6)-linked D-Galp residues forming main chain. Approximately 38% β-D-Galp units backbone carry branches on position O-3, consisting single or...
Chamomile is one of the most ancient medicinal herbs known to mankind and among its traditional uses are calming effects. However, few studies explored effects on central nervous system (CNS). In this study we further proceed with structural elucidation polysaccharides from chamomile tea. A highly substituted 4-O-methyl-glucuronoxylan (fraction SN-50R) was purified chemically characterized, presenting Xyl:GlcA ratio 1.7:1, Mw 500 kDa total sugar content 98%. Its bioactivity pain CNS...
Background: Inflammatory bowel diseases, such as ulcerative colitis and Crohn’s disease, affect the gastrointestinal tract. Treatment aims to induce remission relieve symptoms but may fail or cause side effects. Recent studies suggest that natural polysaccharides can reduce inflammation promote healing. The of pulp tamarillo (Solanum betaceum cav.) have shown beneficial effects, their potential in is still unexplored. Objective: To investigate effect from an animal model colitis. Methods:...
A β-D-glucan was obtained from the edible mushroom Pholiota nameko by hot aqueous extraction and purification. NMR methylation analyses of purified fraction (GHW-PN, 1.46% yield) indicated presence a (1 → 3)-linked β-D-glucan, highly substituted (~27%) at O-6 single units β-D-Glcp or 6)-β-D-Glcp fragments. The β-glucan (at 0.5, 1, 2%) showed shear thinning behavior when concentration solution increased, there an increase in apparent viscosity. presented gel-like thermal stability under...
The present study investigated the antineoplastic effects of pectic polysaccharides that were extracted from green sweet pepper (Capsicum annuum [CAP]) in Ehrlich carcinoma mice and human mammary tumor lineages. After subcutaneous inoculation 2 × 106 cells, Female Swiss received 50, 100, or 150 mg/kg CAP vehicle orally once daily methotrexate (2.5 mg/kg, i.p., every 5 days) for 21 days. dose-dependently reduced growth. It also viability MCF-7, MDA-MB-231, MDA-MB-436 cell Treatment with gene...
Yellow passion fruit peel (PFP) is considered an important source of dietary fibre (DF) and its consumption has been associated with health benefits in metabolic gut disturbs. This work aimed to characterize the chemical structure soluble DF (SDF) from PFP evaluate gastroprotective activity acute gastric-ulcer model induced by ethanol rats. SDF was composed 92% GalA presented high methyl esterified homogalacturonan (DE = 70%), relative Mw 53 kDa. Oral pre-treatment animals (0.1, 1 10 mg/kg)...
Chamomile is one of most known species medicinal plants. It has valuable pharmacological properties that produce positive effects in many therapeutical uses. Some these are attributed to the presence secondary metabolites but already primary can also effects. In this study we elucidate fine chemical structure polysaccharides present infusion chamomile flower chapters. After ethanolic precipitation, were obtained from tea (fraction MRW, 3.2% yield), purified and characterized as an inulin...
Peach palm fruit mesocarp (Bactris gasipaes var. gasipaes) is already consumed in the Northern region of Brazil, after its cooking and known as a source starch carotenoids like all fruits it has low storage stability. This work characterized extracted from peach using with water terms physical chemical properties. The SEM micrographs show that presented bimodal distribution (size 3.9–10.4 µm), while smaller granules had smooth surface an oval or conical shape, larger were spherical holes...