A5003653947- Listeria monocytogenes in Food Safety
- Microbial Inactivation Methods
- Identification and Quantification in Food
- Protein Hydrolysis and Bioactive Peptides
- Proteins in Food Systems
- Probiotics and Fermented Foods
- Biofuel production and bioconversion
- Essential Oils and Antimicrobial Activity
- Enzyme Production and Characterization
- Food composition and properties
- Microbial Metabolites in Food Biotechnology
- Meat and Animal Product Quality
- Fungal and yeast genetics research
- Phytochemicals and Antioxidant Activities
- Seaweed-derived Bioactive Compounds
- Food Industry and Aquatic Biology
- Phytochemical and Pharmacological Studies
- Medicinal Plants and Neuroprotection
- Tryptophan and brain disorders
- Food Safety and Hygiene
- Microbial Metabolic Engineering and Bioproduction
- Bee Products Chemical Analysis
- Bacterial biofilms and quorum sensing
- Nanocomposite Films for Food Packaging
- Enzyme-mediated dye degradation
"Dunarea de Jos" University of Galati
2016-2025
Instituto de Agroquímica y Tecnología de Alimentos
2010-2011
Listeria monocytogenes is a foodborne pathogen that causes listeriosis, group of human illnesses appear more frequently in countries with better-developed food supply systems. This review discusses the efficacy actual biocontrol methods combined main types involved illnesses. Comments on bacteriophages, lactic acid bacteria, bacteriocins, essential oils, and endolysins derivatives, as biological antilisterial agents, are made bearing mind that, using them, processors can intervene to protect...
Abstract Background High-pressure processing (HPP) is a commonly used technique in the food industry to inactivate pathogens, including L. monocytogenes . It has been shown that able recover from HPP injuries and can start grow again during long-term cold storage. To date, gene expression profiling of damage recovery at cooling temperature not studied. In order identify key genes play role caused by treatment, we performed RNA-sequencing (RNA-seq) for two strains (barotolerant RO15...
The processing of sea buckthorn generates a significant amount pomace, seeds and skin considered valuable sources health-promoting macromolecules, such as carotenoids, pectin, flavonoids, phytosterols, polyunsaturated fatty acids tocopherols. In this study, the bioactives from pomace (SBP) were extracted using supercritical carbon dioxide (SFE-CO2), at different temperatures pressures, allowing for obtaining four fractions according to separators (S40 S45). highest carotenoid content 396.12...
The functionality of the peptides obtained through enzymatic hydrolysis spent brewer's yeast was investigated. Hydrolysis carried out for 4-67 h with bromelain, neutrase and trypsin. resulting hydrolysates were characterized in terms physical-chemical, antioxidant techno-functional properties. solid residues soluble protein contents increased time, highest values being measured samples hydrolyzed neutrase. Regardless maximum degree sample neutrase, while lowest hydrolysate exhibited DPPH...
Pepsin, trypsin and proteinase K were used in the present study to hydrolyse proteins from whole eggs, yolks or whites, resulting hydrolysates characterised terms of antioxidant IgE-binding properties, using a combination vitro silico methods. Based on degree hydrolysis (DH) results, egg yolk are better substrates for all tested enzymes (DH 6.2–20.1%) compared those whites 2.0–4.4%). The SDS-PAGE analysis indicated that pepsin more efficient breaking intramolecular peptide bonds high...
Abstract Listeria monocytogenes is a food‐borne human pathogen and serious concern in food production preservation. Previous studies have shown that biofilm formation of L. presence extracellular DNA (eDNA) the matrix varies with environmental conditions may involve agr peptide sensing. Experiments normal diluted (hypoosmotic) complex media at different temperatures revealed reduced EGD‐e Δ agrD , mutant deficient sensing, specifically Brain Heart Infusion 25°C. This defect was not related...
Wild artisanal cultures, such as a symbiotic culture of bacteria and yeasts (SCOBY) water kefir grains (WKG), represent complex microorganism consortia that is composed lactic acetic acid bacteria, with large strains diversity abundance. The fermented products (FPs) obtained by the microbiome’s contribution can be included in functional due to their meta-biotics (pre-, pro-, post-, paraprobiotics) result synergistic associations well metabolic functionality. In this study, both SCOBY WKG...
Peroxidase (POD) was extracted from Prunus domestica and partially purified by three methods: ammonium sulfate precipitation, hydrophobic interaction chromatography, ion exchange respectively. The selected procedure allowed a 26.33-fold purification, the molecular mass estimated SDS-PAGE 58 kDa. enzyme presented enzymatic activity toward guaiacol, pyrogallol, catechol, showed no ferulic, caffeic, p-coumaric acids. In terms of optimum parameters for activity, pH 6.5, whereas temperature 25°C....
Abstract Background The pathogen Listeria (L.) monocytogenes is known to survive heat, cold, high pressure, and other extreme conditions. Although the response of this pH, osmotic, temperature, oxidative stress has been studied extensively, its reaction produced by pressure processing HPP (which a preservation method in food industry), activated gene regulatory network (GRN) still largely unknown. Results We used RNA sequencing transcriptome data L. (ScottA) treated at 400 MPa 8 ∘ C , for...
A new generation of food packaging materials, centered on green solutions, is currently being developed in labs basing these materials underused secondary industrial by-products which have the ability to reduce amount petroleum-based generated order minimize environmental harm and while ensuring quality safety. This study presents a sustainable biopolymeric combination based bacterial nanocellulose grafted yeast films, its potential improve matrices properties, influence plasticizer...
In this study, red grape pomace from Cabernet variety was extracted by supercritical carbon dioxide using two sets of extraction conditions to recover the lipophilic and polyphenolic fractions. The extracts showed a different phytochemical profile, with higher carotenoids content in extract obtained at pressure 45 MPa temperature °C, whereas 30 °C 15 fatty acids, tocopherols, phytosterols. enriched good antibacterial activity against Staphylococcus aureus, Bacillus subtilis, Pseudomonas...
The primary goal of this study was to generate different kinds functional products based on carrots that were supplemented with lactic acid bacteria. fact (Daucus carota sp.) rank among the most popular vegetables in our country led convergence research aim. Their abundance bioactive compounds, primarily polyphenols, flavonoids, and carotenoids, offers numerous health benefits. Among obtained products, freeze-dried carrot powder (FDCP) variation presented highest concentrations total...
The influence of protease-assisted hydrolysis on the impact exerted by soy protein isolate thermo-mechanical behavior and baking performance gluten-free composite flour, consisting a mixture rice quinoa flours, was investigated. mPAGE analysis revealed that soluble fractions hydrolysates, obtained with bromelain, Neutrase or trypsin, concentrated peptides molecular weight lower than 20 kDa, whereas insoluble ones retained higher fragments. separate cumulative addition peptide properties...