Javier D. Breccia

ORCID: 0000-0003-3692-0995
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Enzyme Production and Characterization
  • Biofuel production and bioconversion
  • Microbial Metabolites in Food Biotechnology
  • Enzyme Catalysis and Immobilization
  • Glycosylation and Glycoproteins Research
  • Carbohydrate Chemistry and Synthesis
  • Microbial Metabolic Engineering and Bioproduction
  • Protein Hydrolysis and Bioactive Peptides
  • Phytochemical compounds biological activities
  • Reproductive tract infections research
  • Probiotics and Fermented Foods
  • Fungal Biology and Applications
  • Legume Nitrogen Fixing Symbiosis
  • Meat and Animal Product Quality
  • Phytochemicals and Antioxidant Activities
  • Protein purification and stability
  • Microbial Metabolism and Applications
  • Phytase and its Applications
  • Algal biology and biofuel production
  • Genomics and Phylogenetic Studies
  • Biochemical and biochemical processes
  • Ruminant Nutrition and Digestive Physiology
  • Aquaculture Nutrition and Growth
  • Cassava research and cyanide
  • Fermentation and Sensory Analysis

Universidad Nacional de La Pampa
2015-2024

Consejo Nacional de Investigaciones Científicas y Técnicas
2015-2024

University of Buenos Aires
2020

Fundación Ciencias Exactas y Naturales
2011-2012

Planta Piloto de Procesos Industriales Microbiológicos
1995-2006

Lund University
1999-2003

National University of Tucumán
1995-1998

Oxidation is one of the major pathways for denaturation proteins during storage, and also a potential problem in protein production, isolation purification processes. In this study, number additives have been tested their protective effects against oxidation presence metal ions hydrogen peroxide. Porcine muscle lactate dehydrogenase (LDH) was used as model protein. enzyme were followed activity loss, modification certain amino acids, altered secondary structure aggregation. Loss...

10.1042/ba20000014 article EN Biotechnology and Applied Biochemistry 2000-12-01

A Gram-positive, rod-shaped, spore-forming bacterium (PAT 05T) was isolated from the rhizosphere of perennial shrub Atriplex lampa in north-eastern Patagonia, Argentina. Its overall biochemical and physiological characteristics indicated that this strain should be placed alkaliphilic Bacillus group. Strain PAT 05T grew at pH 7–10 (optimum 8), but not 6. DNA G+C content 39·7 mol%. Sequence analysis 16S rRNA gene revealed closest match (99·6 % similarity) with sp. DSM 8714. The highest level...

10.1099/ijs.0.63348-0 article EN INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY 2005-01-01

β-Glucosidases are reported to act in an exo manner and so unable hydrolyze the bond if another sugar is attached a non-reducing terminus of glucose. However, endo-β-glucosidases recognizing heterosidic linkage have been known plant physiologists for eight decades, although they described detail only recently. Because ability these enzymes split off disaccharide were named disaccharide-specific glycosidases or 'diglycosidases'. In contrast sequential mechanism two monoglycosidases,...

10.3109/10242422.2011.594882 article EN Biocatalysis and Biotransformation 2011-07-15

Most aroma compounds exist in vegetal tissues as disaccharide conjugates, rutinose being an abundant sugar moiety grapes. The availability of precursors would facilitate analytical analysis plant-based foods. diglycosidase α-rhamnosyl-β-glucosidase from Acremonium sp. DSM 24697 efficiently transglycosylated the hesperidin to 2-phenylethanol, geraniol, and nerol aqueous-organic biphasic system. 2-Phenethyl rutinoside was synthesized up millimolar level with 80% conversion regarding donor...

10.1021/jf202412e article EN Journal of Agricultural and Food Chemistry 2011-08-12

Abstract β ‐Glucosidase is a highly desired glycosidase, especially for hydrolysis of glycoconjugated precursors in musts and wines the release active aromatic compounds. A Shewanella sp. G5 strain was isolated from intestinal content benthonic organism ( Munida subrrugosa ) different coastal areas Beagle Channel, Tierra del Fuego (Argentina). This marine bacterium able to grow at temperature range between 4 20 °C using ‐glycoside substrates, such as cellobiose, carbon source. In this work,...

10.1002/jobm.200700146 article EN Journal of Basic Microbiology 2008-02-01

Abstract The structure of the carbohydrate moiety a natural phenolic glycoside can have significant effect on molecular interactions and physicochemical pharmacokinetic properties entire compound, which may include anti‐inflammatory anticancer activities. enzyme 6‐ O ‐α‐rhamnosyl‐β‐glucosidase (EC 3.2.1.168) has capacity to transfer rutinosyl (6‐ ‐α‐ l ‐rhamnopyranosyl‐β‐ d ‐glucopyranose) from 7‐ ‐rutinosylated flavonoids hydroxylated organic compounds. This transglycosylation reaction was...

10.1002/bab.1695 article EN Biotechnology and Applied Biochemistry 2018-10-08

A simple procedure is described for the screening and isolation of xylanolytic bacteria, able to degrade hemicellulose. Bagasse hemicellulose was purified, cross‐linked with green dye use as indicator, used in a Petri dish assay determination activity. Hydrolysis substrate causes formation transparent halos around bacterial colonies. The select thermoresistant bacteria. four best isolates were characterized classified Bacillus species.

10.1111/j.1365-2672.1995.tb03086.x article EN Journal of Applied Bacteriology 1995-05-01
Coming Soon ...