Browsing QANB-Artigos by Title
Now showing items 1-20 of 112
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14N NMR spectroscopy study of binding interaction between sodium azide and hydrated fullerene
(MDPI, 2017)Our study is the first attempt to study the interaction between NaN3 and hydrated fullerenes C60 by means of a non-chemical reaction-based approach. The aim is to study deviations of signals obtained by 14N NMR spectroscopy ... -
An Evaluation of Alternatives to Nitrites and Sulfites to Inhibit the Growth of Salmonella enterica and Listeria monocytogenes in Meat Products
(MDPI AG, 2016-10-31)In recent years, the use of nitrites and sulfites as food preservatives has been a cause for concern due to the health problems that these additives can cause in humans. Natural products have been studied as an alternative, ... -
An Innovative Photoreactor, FluHelik, To Promote UVC/H2O2 Photochemical Reactions: Tertiary Treatment of an Urban Wastewater
(Elsevier, 2019)An innovative photoreactor, FluHelik, was used to promote the degradation of contaminants of emerging concern (CECs) by a photochemical UVC/H2O2 process. First, the system was optimized for the oxidation of a model antibiotic, ... -
Analysis of naturally occurring steroid hormones in infant formulas by HPLC-MS/MS and contribution to dietary intake
(MDPI, 2015)Milk is a natural fluid and as such contains small amounts of naturally occurring steroids. Human milk is recommended as the optimal source of nutrients for infants and young children, and it has been associated to several ... -
Analysis of Tetracyclines in Medicated Feed for Food Animal Production by HPLC-MS/MS
(MDPI AG, 2015-12-24)The use of medicated feed is a common practice in animal food production to improve animal health. Tetracyclines and β-Lactams are the groups that are most frequently added to this type of feed. The measurement of the ... -
Análisis de aguas residuales con fines epidemiológicos: aplicaciones a la estimación del consumo de sustancias de abuso y en salud pública en general. Red española ESAR-Net
(España. Ministerio de Sanidad y Consumo, 2018-08-20)En este artículo se presenta la metodología de análisis de aguas residuales con fines epidemiológicos (wastewater-based epidemiology, WBE) y su potencial para abordar diversos aspectos relacionados con la salud pública. ... -
Antimicrobial films based on chitosan and methylcellulose containing natamycin for active packaging applications
(MDPI, 2017)Biodegradable polymers are gaining interest as antimicrobial carriers in active packaging. In the present study, two active films based on chitosan (1.5% w/v) and methylcellulose (3% w/v) enriched with natamycin were ... -
Antioxidant white grape seed phenolics: pressurized liquid extracts from different varieties
(MDPI, 2015)Grape seeds represent a high percentage (20% to 26%) of the grape marc obtained as a byproduct from white winemaking and keep a vast proportion of grape polyphenols. In this study, seeds obtained from 11 monovarietal white ... -
Antioxidants profiling of by-products from eucalyptus greenboards manufacture
(MDPI, 2019)Three different by-products from the Eucalyptus wood industry have been exhaustively characterized to find compounds with antioxidant properties. The industrial process to manufacture Eucalyptus greenboards is distinguished ... -
Application of an activated carbon-based support for magnetic solid phase extraction followed by spectrophotometric determination of tartrazine in commercial beverages
(Hindawi, 2015)A method is presented for magnetic solid phase extraction of tartrazine from nonalcoholic beverages. The method involves the extraction and clean-up by activated carbon covered with magnetite dispersed in the sample, ... -
Application of artificial neural networks coupled to UV–VIS–NIR spectroscopy for the rapid quantification of wine compounds in aqueous mixtures
(Taylor & Francis, 2014-01-01)Ultraviolet–visible (UV–VIS) and near-infrared (NIR) spectroscopy coupled to artificial neural networks (ANNs) was used as a nondestructive technique to quantify ethanol, glucose, glycerol, tartaric acid, malic acid, acetic ... -
Application of artificial neural networks coupled to UV–VIS–NIR spectroscopy for the rapid quantification of wine compounds in aqueous mixtures
(Taylor & Francis, 2015)Ultraviolet–visible (UV–VIS) and near-infrared (NIR) spectroscopy coupled to artificial neural networks (ANNs) was used as a non-destructive technique to quantify ethanol, glucose, glycerol, tartaric acid, malic acid, ... -
Assessing Cocaine Use Patterns in the Brazilian Capital by Wastewater-Based Epidemiology
(Taylor & Francis, 2018-12-10)The levels of cocaine (COC) and its metabolites benzoylecgonine (BE) and cocaethylene (COE) in wastewater samples from Brasilia, Brazil, were determined using liquid chromatography coupled to hybrid quadrupole-time-of-flight ... -
Assessment of tetracyclines residues and tetracycline resistant bacteria in conventional and organic baby foods
(MDPI, 2015)Children are very vulnerable to bacterial infections and they are sometimes subject to antimicrobials for healing. The presence of resistance genes may counteract effects of antimicrobials. This work has thereby compared ... -
Bioaccumulation of UV filters in Mytilus galloprovincialis mussel
(Elsevier, 2017-09-29)In this study the bioaccumulation kinetics of organic UV filters, such as 4-MBC, BP-3, BP-4, OC and OD-PABA in wild Mytilus galloprovincialis mussels was investigated. The uptake and accumulation of waterborne 4-MBC, BP-4 ... -
Biochemical, micronutrient and physicochemical properties of the dried red seaweeds Gracilaria edulis and Gracilaria corticata
(MDPI, 2019)The present study sought to evaluate the nutritional composition and physicochemical properties of two dried commercially interesting edible red seaweeds, Gracilaria corticata and G. edulis. Proximate composition of the ... -
Changes in bioactive compounds content and antioxidant activity of seaweed after cooking processing
(Taylor & Francis, 2012)Wakame and Kombu seaweed, both fresh and reconstituted for consumption, were analyzed by HPLC for the determination of the content of ascorbic acid, vitamin E, β-carotene, lutein, fucoxanthin, chlorophyll a and pheophytin ... -
Characterization of chickpea (cicer arietinum L.) flour films: effects of pH and plasticizer concentration
(MDPI, 2019)The use of flours as a material for biopolymer-based film preparation has gained interest due to the fact that they are a natural mixture of compatible macromolecules and due to their low cost. Chickpea flour shows a ... -
Characterization of Foodborne Strains of Staphylococcus aureus by Shotgun Proteomics: Functional Networks, Virulence Factors and Species-Specific Peptide Biomarkers
(Frontiers Media, 2017)In the present work, we applied a shotgun proteomics approach for the fast and easy characterization of 20 different foodborne strains of Staphylococcus aureus (S. aureus), one of the most recognized foodborne pathogenic ... -
Characterization of polyphenolic compounds extracted from different varieties of almond hulls (prunus dulcis L.)
(MDPI, 2019)Ultrasound-assisted extraction (UAE) was applied as a pretreatment technique to improve the recovery of polyphenols from the almond hulls of four Tunisian and three Italian almond varieties, followed by the characterization ...