A5059697781- Phytochemicals and Antioxidant Activities
- Food composition and properties
- Antioxidant Activity and Oxidative Stress
- Coffee research and impacts
- Edible Oils Quality and Analysis
- Free Radicals and Antioxidants
- Tea Polyphenols and Effects
- Microbial Metabolites in Food Biotechnology
- Natural Antidiabetic Agents Studies
- Genomics, phytochemicals, and oxidative stress
- Fatty Acid Research and Health
- Heavy Metals in Plants
- Nutritional Studies and Diet
- Food Chemistry and Fat Analysis
- Diet and metabolism studies
- Essential Oils and Antimicrobial Activity
- Bioactive natural compounds
- Protein Hydrolysis and Bioactive Peptides
- Advanced Glycation End Products research
- Meat and Animal Product Quality
- Biochemical Analysis and Sensing Techniques
- Photographic and Visual Arts
- Seaweed-derived Bioactive Compounds
- Complementary and Alternative Medicine Studies
- Cholesterol and Lipid Metabolism
Consejo Superior de Investigaciones Científicas
2015-2024
Instituto de Ciencia y Tecnología de Alimentos y Nutrición
2015-2024
University of Birmingham
2020-2024
Universidad Nacional de Colombia
2024
Royal Society of Chemistry
2023
University of Florida
2020-2023
Peking University
2017-2023
Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement
2023
University of Leeds
2023
University of Guelph
2023
Most nonenzymatic antioxidant activity (scavenging of free radicals, inhibition lipid peroxidation, etc.) is mediated by redox reactions. The (AO) polyphenols (PPs), as ferric-reducing power, was determined for the first time using a modified FRAP (ferric reducing/antioxidant power) assay. Reaction followed 30 min, and both Fe(II) standards samples were dissolved in same solvent to allow comparison. Selected representative PPs included flavonoids (quercetin, rutin, catechin), resveratrol,...
Dietary fiber (DF) intakes in Western countries only accounts for about one-third of the substrates required colonic bacterial cell turnover. There is a general trend among nutritionists to extend DF concept include all food constituents reaching colon. In this line, method quantify major nondigestible components plant foods, namely, indigestible fraction (IF), presented. Analytical conditions IF determination are close physiological. Samples, analyzed as eaten, were successively incubated...
Abstract The aim of this work was to investigate the response antioxidant defense system two oxidative stressors, hydrogen peroxide and tert ‐butyl hydroperoxide, in HepG2 cells culture. parameters evaluated included enzyme activity gene expression superoxide dismutase, catalase, glutathione peroxidase, reductase. Besides, markers cell damage stress evoked by stressors such as viability, intracellular reactive oxygen species generation, malondialdehyde levels, reduced concentration were...
This article reports a study of the nutritional composition, total dietary fiber (TDF), mineral contents, fatty acid and amino profiles, polyphenolic concentration antioxidant activity three Spanish seaweeds: two brown seaweeds (Himanthalia elongata Undaria pinnatifida) one red (Porphyra umbilicalis). TDF ash were most abundant components in seaweeds, while protein main one. In all lipid contents very low but polyunsaturated high. Although seaweed contained significantly (p < 0.05) more...
Scope Cocoa and (–)‐epicatechin ( EC ), a main cocoa flavanol, have been suggested to exert beneficial effects in diabetes, but the mechanism for their insulin‐like remains unknown. In this study, modulation of insulin signalling by phenolic extract CPE ) on hepatic H ep G 2 cells was investigated analysing key proteins pathways, namely receptor, receptor substrate IRS 1 2, PI 3 K / AKT 5′‐ AMP ‐activated protein kinase AMPK as well levels glucose transporter GLUT ‐2 production. Methods...
Hydroxytyrosol (HTy) is a natural polyphenol abundant in olive oil, which possesses multiple biological actions. Particularly, HTy has cytoprotective activity against oxidative-stress-induced cell damage, but the underlying mechanisms of action remain unclear. Here, we have investigated molecular mechanism involved protection exerted by on tert-butyl hydroperoxide-induced damage human HepG2 liver cells. Treatment cells with increased expression and glutathione-related enzymes such as...
Scope Diabetes mellitus is associated with reductions in glutathione, supporting the critical role of oxidative stress its pathogenesis. Antioxidant food components such as flavonoids have a protective against stress‐induced degenerative and age‐related diseases. Flavonoids epicatechin ( EC ) constitute an important part human diet; they can be found green tea, grapes, cocoa possess multiple biological activities. This study investigates chemo‐protective effect induced by tert...