Browsing QANB-Artigos by Title
Now showing items 1-20 of 181
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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. ... -
Animal-Origin Prebiotics Based on Chitin: An Alternative for the Future? A Critical Review
(MDPI, 2020)The human gut microbiota has been revealed in recent years as a factor that plays a decisive role in the maintenance of human health, as well as in the development of many non-communicable diseases. This microbiota can be ... -
Antimicrobial Activity of Five Apitoxins from Apis mellifera on Two Common Foodborne Pathogens
(MDPI, 2020)Antimicrobial resistance is one of today’s major public health challenges. Infections caused by multidrug-resistant bacteria have been responsible for an increasing number of deaths in recent decades. These resistant ... -
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 ... -
Association between Breast Milk Mineral Content and Maternal Adherence to Healthy Dietary Patterns in Spain: A Transversal Study
(MDPI, 2020)The composition of breast milk is influenced by many factors, some of which dependent on the mother and others on the child. Changes in lactation and other factors depending on the mother’s physiology and anthropometric ... -
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 ... -
Carbon Nanotubes as Solid-Phase Extraction Sorbents Prior to Atomic Spectrometric Determination of Metal Species: Determination of Lead in Urine
(MDPI, 2015)New materials have significant impact on development of new methods and instrumentation for chemical analysis. From the discovery of carbon nanotubes in 1991, single and multi-walled carbon nanotubes (SWCNTs and MWCNTs) ...