A5074523963- Botanical Research and Applications
- Phytochemicals and Antioxidant Activities
- Free Radicals and Antioxidants
- Antioxidant Activity and Oxidative Stress
- Bee Products Chemical Analysis
- Essential Oils and Antimicrobial Activity
- Plant Growth Enhancement Techniques
- Ruminant Nutrition and Digestive Physiology
- Allelopathy and phytotoxic interactions
- Phytochemicals and Medicinal Plants
- Microencapsulation and Drying Processes
- Insect and Pesticide Research
- Meat and Animal Product Quality
- Food Industry and Aquatic Biology
- Polysaccharides Composition and Applications
- Genetic and phenotypic traits in livestock
- Protein Hydrolysis and Bioactive Peptides
- Plant responses to elevated CO2
- Plant Parasitism and Resistance
- Radical Photochemical Reactions
- Phytoestrogen effects and research
- Mycorrhizal Fungi and Plant Interactions
- Sesame and Sesamin Research
- Microbial Metabolites in Food Biotechnology
- Organoselenium and organotellurium chemistry
National University of Santiago del Estero
2016-2025
Consejo Nacional de Investigaciones Científicas y Técnicas
2013-2025
Centro Científico Tecnológico - San Juan
2014-2023
Centro Científico Tecnológico - Tucumán
2015
Instituto de Química del Noroeste Argentino
2009-2012
Universidade Estadual de Campinas (UNICAMP)
2003
Universidad Nacional de Córdoba
1993-1996
Cordoba University
1994
The capacity of polyphenolic compounds to reduce the beta-carotene-linoleic acid cooxidation enzymatically induced by soybean lipoxygenase was assayed determine their comprehensive antioxidant ability. inhibition coupled oxidation is a well-known spectrophotometric method for activity measurement. A modification this proposed assay time and gain simplicity. abilities several polyphenols were determined, quercetin sinapic most active. These results compared those obtained DPPH* procedure...
Abstract The highest yield (14.4 g/kg) of naringin, the major flavonoid from peel Citrus paradisi L., that could be achieved by supercritical fluid extraction was obtained using carbon dioxide modified with 15% ethanol and fresh (rather than dried) peels at 95 bar 58.6°C. This is higher attained conventional technique maceration, close to those reflux Soxhlet methods. Furthermore, consumes less solvent provides a shorter time Copyright © 2003 John Wiley & Sons, Ltd.
Changes in crop yields and bioactive substance contents were studied lettuce concerning the influence of soil nutritional status as a result compost vermicompost additions obtained from different organic substrates. Plant productions main pigment higher all fertilized soils than untreated soil, with exception one treated urban solid waste compost. These positive effects correlate nitrogen level increase soil. However, high saline input this prepared food home wastes interferes growth...
The immobilization of caffeic acid (CA) on a polypropylene (PP) film was successfully performed through the covalent binding caffeoyl chloride modified polymeric surface PP films grafted with hydroxyethyl methacrylate as monomer (PP-g-HEMA). different reaction steps were monitored by FT-IR spectroscopy. synthesized characterized Folin−Ciocalteu method measuring available phenolic groups equivalents linked to surface. antioxidant efficiency polymers evaluated typical spectrophometric methods,...
The extreme temperatures generated in the melon crop, early harvest, induce an increase reactive oxygen species (ROS) plant levels leading to oxidative stress. Phytoprostanes (PhytoPs) and phytofurans (PhytoFs) are metabolites derived from α-linolenic acid oxidation induced by ROS. aims of this work were evaluate PhytoPs PhytoFs as stress biomarkers leaves plants thermally stressed. In addition, fortify antioxidant defenses, foliar spraying was assayed using salicylic gallic solutions Ilex...
This study evaluated the effect of soybean expeller (SBE) dietary supplementation on plasma antioxidant status in beef heifers during a four-month natural breeding season. Thirty-two were assigned into two groups over consecutive years. One group grazed Rhodes grass without SBE season (LSBE; n = 16), while other received at 0.6% body weight (BW) (HSBE; 16). Plasma was analyzed for total phenolic compounds, flavonoids, antiradical activity, and overall capacity. Oxidative stress measured...
The photosensitized isomerization reaction of the natural cis carotenoid bixin (methyl hydrogen 9'-cis-6, 6'-diapocarotene-6, 6'-dioate) with rose bengal or methylene blue as sensitizer in acetonitrile/methanol (1:1) solution was studied using UV-vis spectroscopy, high-performance liquid chromatography (HPLC), and time-resolved spectroscopic techniques, such laser-flash photolysis singlet oxygen phosphorescence detection. In both N(2)- air-saturated solutions, main product formed...
The influence of the medium heterogeneity upon bimolecular rate constants for physical quenching, kq, and chemical kr, singlet molecular oxygen O2(1Δg) by seven natural three synthetic carotenoids (CAR) with different substituent patterns was studied in a reverse micelle system sodium bis(2-ethylhexyl)sulfosuccinate, hexane water. Because generated inside water pools micelles photosensitization water-soluble dye rose bengal CAR are mainly located external pseudophase, quenching process...