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The history of science can teach modern men that our understanding of life is to a great extent based on the accuracy of the analytical methods that we use and, on our readiness to oppose dogmatic opinions, which are based on outdated methods and black/white approaches to the major questions raised by mankind in the past. The recent decades have brought a lot of new insights into the fundamentals of the active principles of reactive oxygen species that are necessary for living cells, but which also cause dangerous pathophysiological processes. Accordingly, although they were previously considered to be the most undesired toxic compounds generated as the final products of the oxidative degradation of lipids, reactive aldehydes are now considered to play important roles both in health and in major diseases. Represented mostly by 4-hydroxynonenal (HNE), a substance discovered only fifty years ago, reactive aldehydes are the focus of research not only because of their toxicity but also because of their positive effects regulating the most important metabolic processes such as growth of living cells or the death of cells. Better understanding the interactions between reactive aldehydes and natural or synthetic antioxidant substances might eventually help us to better monitor, prevent and control modern diseases, thus building pillars for the development of the modern, multidisciplinary life sciences and integrative medicine of the 21st century.
free radicals --- lipids --- cell-based ELISA --- reactive aldehydes --- antioxidants --- fertility --- reactive oxygen species ROS --- human diseases --- lipid peroxidation --- 4-hydroxynonenal --- 1 --- 4-Dihydropyridine Derivatives --- omics --- pathophysiology --- growth control --- cannabinoids --- plant extract --- mass spectrometry --- cell cultures --- cancer --- aging --- oxidative stress --- immunochemistry
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The chemical industry is essential in the daily human life of modern society; despite the misconception about the real need for chemical production, everyone enjoys the benefit of the chemical progress. However, the chemical industry generates a large variety of products, including (i) basic chemicals, e.g., polymers, petrochemicals, and basic inorganics; (ii) specialty chemicals for crop protection, paints, inks, colorants, textiles, paper, and engineering; and (iii) consumer chemicals, including detergents, soaps, etc. For these reasons, chemists in both academia and industry are challenged with developing green and sustainable chemical production toward the full-recycling of feedstocks and waste. Aiming to improve the intensification of the process, chemists have established chemical reactions based on catalysis, as well as alternative technologies, such as continuous flow. The aim of this book is to cover promising recent research and novel trends in the field of novel catalytic reactions (homogeneous, heterogeneous, and enzymatic, as well as their combinations) in continuous flow conditions. A collection of recent contribution for conversion of starting material originated from petroleum resources or biomass into highly-added value chemicals are reported.
n/a --- dynamic mesh --- catalytic hydrodechlorination --- Pd catalyst --- fuel reactor --- catalysis --- alcohols --- Rhynchophorus ferrugineus --- ketones --- numerical prediction --- heterogeneous catalyst --- 5-hydroxymethylfurfural (HMF) --- CO2 capture --- chemical looping combustion --- SBA-15 --- biodiesel --- ?-valerolactone --- (bio) catalysis --- economizer --- erosion rate --- magnesium --- circulating fluidized bed --- continuous reactor --- erosion evolution --- kinetics --- Meerwein–Ponndorf–Verley reduction --- flow microreactor --- CFD --- micro reactor --- Oppenauer oxidation --- chlorophenols --- succinate --- aldehydes --- multiphase catalysis --- methyl levulinate --- pheromone --- zirconium --- flow chemistry --- continuous flow --- biomass --- glucose --- oxidation --- dialkyl succinates --- tube-in-tube --- aerobic --- chemo-enzymatic catalysis --- homogeneous catalysis --- lipase Cal B --- expiry period --- titanium dioxide --- Meerwein-Ponndorf-Verley reduction
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Food safety is a major problem around the world, both with regard to human suffering and with respect to economic costs. Scientific advances have increased our knowledge surrounding the nutritional characteristics of foods and their effects on health. This means that a large proportion of consumers are much more conscious with respect to what they eat and their demands for quality food. Food quality is a complex term that includes, in addition to safety, other intrinsic characteristics, such as appearance, color, texture and flavor, and also extrinsic characteristics, such as perception or involvement.
Escherichia coli O157:H7 --- quality --- beef --- veal --- thermal inactivation --- muscle foods --- modified atmosphere packaging --- CO --- shelf-life --- best practice --- regulation --- broiler --- chicken --- breast meat --- sensory analysis --- Spirulina --- black soldier fly --- Hermetia illucens --- M. pectoralis superficialis --- lamb meat --- freshness --- volatile compounds --- aldehydes --- aldehyde ratios --- quality control --- catfish --- batters --- texture --- oil content --- Listeria monocytogenes --- Campylobacter --- Salmonella --- Staphylococcus aureus --- vacuum impregnation --- sodium chloride brine --- cull cows --- meat quality --- microstructure --- moisture-enhanced meat --- cluster --- intrinsic --- extrinsic --- oil --- meat confit --- lamb --- cecina --- ovine --- sensory quality --- traditional meat products --- poultry --- carbon monoxide --- packaging --- enhanced meat
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This reprint presents some recent results from applying original analytical methods to the most renowned hive matrices. Particular consideration was given to methods devoted to the attribution of the origin of honey and propolis, but also studies dealing with the chemical characterization of honey and other hive matrices are here reported. Attention has also been paid to the use of optimized methods of elemental analysis in several hive products for quality and safety purposes, but also for environmental biomonitoring. The treatment of the data was often achieved through multivariate analysis methods, which made it possible to obtain reliable classifications of honeys and propolis according to their botanic or geographical origin.
propolis --- poplar --- HPLC–Q-Exactive-Orbitrap®–MS analysis --- phenolic glycerides --- essential and non-essential nutrients --- nucleosides --- honey composition --- uridine --- neuropharmacological activities --- filtered honey --- botanical origin --- fluorescence spectrometry --- antioxidant activity --- spectrum–effect relationships --- cluster analysis --- principal component analysis --- multiple linear regression analysis --- sample preparation --- trace element --- toxic element --- spectroanalytical technique --- biomonitoring --- bee pollen --- ascorbic acid --- total ascorbic acids --- dehydroascorbic acid --- HILIC --- honey discrimination --- strawberry-tree --- thistle --- eucalyptus --- asphodel --- attenuated total reflectance --- Fourier transform infrared spectroscopy --- bee products --- multielemental analysis --- ICP-MS --- ICP-OES --- inorganic contaminants --- heavy metals --- honey --- quality standards --- protein --- amylase --- acid phosphatase --- native PAGE --- royal jelly --- proteins --- ProteoMinerTM --- MALDI-TOF-MS --- proteomics --- beehive product --- unedone --- bitter taste --- strawberry tree honey --- LC-ESI/LTQ-Orbitrap-MS --- PCA --- PLS --- aroma composition --- sugar content --- QDA profile --- HMF --- furanic aldehydes --- furanic acids --- homogentisic acid --- cyclic voltammetry --- square wave voltammetry --- RP-HPLC --- bees --- beehive products --- cold vapor atomic fluorescence spectrometry --- toxic metal --- trace elements --- toxic elements --- geographical origin --- strawberry tree
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Long-chain polyunsaturated fatty acids (PUFAs) of the omega-3 family, such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are physiologically important for many animals and humans. Moreover, fatty acids play an important roles in numerous contexts reflecting various levels: from their producers in natural ecosystems, microalgae, through to invertebrates and fish, and to culinary treatments of fish products for human consumption. Environmental threats such as anthropogenic pollution and its effects on PUFA yield in aquatic ecosystems as well as their transfer to terrestrial ecosystems are highlighted. Assumptions and challenges that are important for the study of PUFA in trophic webs of aquatic ecosystems as well as in human nutrition are discussed.
Fatty acid --- fish --- food web --- periphyton --- trophic transfer --- water pollution --- zoobenthos --- salmon --- pan-frying --- rosemary --- lipid oxidation --- polyunsaturated fatty acids --- aldehydes --- isoprostanes --- eicosapentaenoic acid --- docosahexaenoic acid --- nutritive quality --- eutrophication --- culinary treatments --- fatty acids --- dietary sources --- allochthonous --- Salvelinus leucomaenis --- chronic mild stress --- depression --- gut microbiota --- fish oil --- olive oil --- CLA --- conjugated linoleic acid --- ALA --- α-linolenic acid --- n-3 HUFA score --- meat fat --- vegetable fat --- mollusks --- symbiotic bacteria --- biosynthesis --- aquatic ecosystems --- subsidies --- food webs --- fatty acyl desaturase --- Δ6 - desaturase --- long-chain polyunsaturated fatty acid --- LC-PUFA --- ω3 --- ω6 --- EPA --- DHA --- AA --- essential fatty acid --- health --- transgene --- essential polyunsaturated fatty acids --- linoleic acid --- alpha-linolenic acid --- food quality --- muscle tissue --- subcutaneous adipose tissue --- liver --- green cryo-fodder --- lipids --- Leptoclinus maculatus --- ontogenesis --- adaptations --- trophic nets --- Arctic --- arctic --- Salmoniformes --- long-chain polyunsaturated fatty acids --- polar lipids --- triacylglycerols --- phytoplankton --- freshwater --- nutritional value
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The book explores issues concerning the design, synthetic methods and biological evaluation of molecules of pharmaceutical interest.
fluorinated pyrazole aldehydes --- tyrosinase inhibition --- phosphodiesterase inhibition --- antibacterial activity --- molecular docking --- periodontitis --- SRP --- LDD --- gelcide --- cancer --- phytocomponents --- Tiospora cardifolia --- silica --- silver oxynitrate --- stability --- core-shell --- antibiofilm --- antimicrobial --- sesquiterpene --- inflammatory pathologies --- nutraceuticals --- triclosan --- surgical site infection --- suture --- abdominal surgery --- cost-analysis --- budget impact analysis --- spirooxindole --- 1,3-dipolar cycloaddition --- eco-friendly chemistry --- ROCS --- shape alignment --- lipophilicity --- anticancer activity --- sol–gel coating --- medical textiles --- antioxidant --- anti-inflammatory --- PEA derivative --- drug release --- imidazole --- antiproliferative --- antioxidant activities --- docking --- DPPH --- ABTS --- acetylcholinesterase --- xanthine oxidase --- pyrimidine-trione --- barbituric --- thiobarbituric --- urease inhibitors --- DFT --- N-benzylisatin-aryl hydrazones --- gefitinib --- A549 cell lines --- pomegranate --- Punica granatum L. --- pomegranate skin extract --- pomegranate fruit extract --- nutraceutical properties --- biological properties --- cladodes --- Opuntia --- antioxidants --- polyphenols --- SFE-CO2 --- rutin --- iso-quercitrin --- nicotiflorin --- narcissin --- n/a --- sol-gel coating
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This reprint is dedicated to new insights into food fermentation. The goal of this reprint was to broaden the current knowledge on advanced approaches concerning food fermentation, gathering studies on conventional and unconventional food matrix fermentation, functional compounds obtained through fermentation, fermentations increasing quality and safety standards, as well as papers presenting innovative approaches shedding light on the microbial community that characterizes fermented foods.
traditional alcoholic beverage --- Ethiopia --- processing --- physicochemical --- fermentative microorganisms --- Arthrospira platensis --- fermentation --- lactic acid bacteria --- food supplement --- aromatic profile --- L. plantarum EM --- rice bran fermentation --- cholesterol removal --- antimicrobial activity --- sensory quality --- lactofermentation --- probiotic --- date fruit bars --- functional snack --- polyphenols --- Grana Padano cheese --- generical hard cheeses --- bacterial diversity --- DNA metabarcoding --- DNA (meta)fingerprinting --- predictive models --- neural network --- swine and pork production chain --- Hepatitis E virus --- Rotavirus-A --- metagenomic analysis --- food safety --- ethnobiology --- ethnozymology --- Mesoamerican biocultural heritage --- traditional food systems --- thyme microcapsules --- Proteus bacillus --- histamine --- histidine decarboxylation pathway --- smoked horsemeat sausage --- fermented fish --- Proteus --- lipase --- volatile compounds --- aldehydes --- esters --- natto --- nattokinase --- combination fermentation --- thrombolytic property --- fish sauce --- biogenic amines --- microbial community dynamics --- starter --- correlation analysis --- natural fermentation --- dry fermented sausages --- microbial biodiversity --- CNC --- 16S metagenomics --- red radish --- cabbage --- fermented foods --- microbial ecology --- flavor components --- n/a
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Biomarkers of environmental toxicants are measures of exposures, some of which can serve to assess disease risk and inter-individual susceptibilities. Metabolites, protein and DNA adducts also serve to elucidate the mechanisms of the bioactivation and detoxication of reactive toxicant intermediates. Some environmental chemicals act as modulators of gene and protein activity, and induce the dysbiosis of the microbiome, which impacts the metabolome and overall health. In this Special Issue on “Biomarkers of Environmental Toxicants”, review articles and original research studies are featured, covering the latest bioanalytical, biochemical and mass spectrometry-based technologies, to monitor exposures through targeted and non-targeted methods, and mechanistic studies that examine the biological effects of environmental toxicants in cells and humans. Diverse topics, such as exposome, microbiome, DNA/protein adducts and t-RNA modifications, as well as important environment toxicants, including heavy metals, benzene, phthalates, aldehydes, glycidol, tobacco smoke and aristolochic acids, are covered. Novel analytical methods, such as protein adductomics, DNA adduct analysis in formalin-fixed paraffin-embedded tissues, site-specific mutagenesis assay and accelerator mass spectrometry, are also included. This collection provides a valuable update of the most recent biochemical and analytical tools that employ biomarkers in toxicology research, biomarker discovery, and exposure and risk assessment in population-based studies.
manganese --- lead --- cadmium --- arsenic --- hair --- children --- environment --- carcinogen --- DNA adducts --- biomonitoring --- formalin-fixed paraffin-embedded tissues --- biomarker --- mass spectrometry --- human biomonitoring --- urine --- non-occupational exposure --- S-phenyl-mercapturic acid --- HPLC-MS/MS --- glycidol --- Hb adduct --- N-(2.3-dihydroxypropyl)valine --- in vivo --- cancer risk --- UPLC/MS/MS --- aristolochic acids --- food contamination --- environmental pollution --- root uptake --- aristolochic acid nephropathy --- Balkan endemic nephropathy --- chronic kidney disease --- tobacco smoke --- human carcinogen --- biomarkers --- epitranscriptomics --- tRNA modifications --- stress response mechanisms --- codon-biased translation --- phthalate --- DEHP --- human exposure --- toxicity --- reproductive --- accelerator mass spectrometry --- cavity ring down spectrophotometry --- radiocarbon --- naphthalene --- benzo[a]pyrene --- cell turnover --- triclocarban --- metastasis --- haemoglobin --- albumin --- protein adducts --- aldehydes --- genotoxicity --- cancer --- diseases --- oxidative stress --- exposure biomarkers --- high-resolution mass spectrometry --- data-dependent profiling --- derivatization --- biological fluids --- isotope labeling --- DNA lesion --- DNA damage --- shuttle vector technique --- replication block --- mutagenicity --- mutational spectrum --- mutational signature --- DNA repair --- DNA adduct bypass --- site-specific mutagenesis --- chemical exposome --- environmental monitoring --- disease --- bioinformatics --- gut microbiome --- chemical toxicity --- n/a
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Volatile organic compounds (VOCs) are a diverse group of carbon-based molecules that are volatile at ambient temperatures and are emitted by an organism as a result of metabolic processes of cells and associated microbiome. The qualitative and quantitative profile of VOCs in biological fluids can vary depending on the physiological changes. Therefore, the pattern of volatile metabolites may reflect the presence of several diseases. This has been intensively investigated in the last few decades, resulting in an increasing number of studies focused on new volatile biomarker discovery.This reprint aimed to summarize the recent findings related to VOCs detected in various biological fluids such as breath, urine and feces for biomedical applications. The content covers various topics, including but not limited to biomedical/medical application of VOC analysis, biomarker discovery, and novel approaches for sampling and analyzing VOCs.
Research & information: general --- Chemistry --- liquid–liquid extraction --- volatile compounds --- urine --- method optimization --- GC-MS --- 1H-NMR --- iron deficiency anaemia --- iron supplementation --- volatile organic compounds (VOCs) --- intestinal metabolome --- gut microbiome --- CDH --- microbiome --- VOCs --- spiroergometry --- outcome --- exhaled breath --- eNose --- smoking --- asthma --- COPD --- NTD-GC-MS --- breath --- lung cancer --- biomarkers --- volatile organic compounds --- urine analysis --- comprehensive two-dimensional gas chromatography --- kidney diseases --- urinary biomarkers --- hepatocellular carcinoma --- diagnosis --- headspace analysis --- untargeted analysis --- breath analysis --- cancer biomarkers --- volatolomics --- whole grain --- rye --- comprehensive two-dimensional gas chromatography–mass spectrometry --- dietary fiber --- e-nose --- electronic nose --- breathing rhythm --- mechanical ventilation --- anesthesia --- supplemental oxygen --- oxygen toxicity --- lipid peroxidation --- volatile aldehydes --- pentanal --- hexanal --- classification models --- dairy cows --- fecal headspace --- Mycobacterium avium ssp. paratuberculosis (MAP) --- paratuberculosis --- random forest --- stable air --- volatile organic compound (VOC) --- biomarker --- MCC–IMS --- ventilator-induced lung injury --- metabolome --- feces --- neonates --- fermentation --- protein --- carbohydrate --- short chain fatty acid --- metabolites --- volatile organic compound --- acute gastritis --- antibiotic treatment --- treatment dynamics: microbiota --- mid-infrared spectroscopy --- short-chain fatty acid --- alpha-keto acid --- Helicobacter pylori --- MOX sensors --- low sensing chamber volume --- calibration transfer --- standard samples --- piecewise direct standardization --- correlation alignment --- breath sampling --- pattern recognition
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Polymer science and technology in Italy represent long-lasting and interdisciplinary fields in which chemistry, physics, and engineering mix together to produce studies which are considered among the best in the world. Several research groups coming from very different fields often collaborate in the design of the material, of the part, and of the processing technology to obtain innovative products with outstanding, new, and smart properties. Examples of the contributions of Italian research in the field are featured in top journals and conferences throughout the world. This Special Issue collects an overview of polymer science and technology in Italy. The research topics include: polymer composites and nanocomposites; biodegradable polymers; polymers with special properties and smart polymers; advanced characterization of polymers; new and innovative polymer processes; modeling of polymer processing; polymeric materials in additive manufacturing; process–properties relationships; polymeric parts for special applications.
polyhedral oligomeric silsesquioxanes --- nanocomposites --- POSS --- polystyrene --- thermal behavior --- SEM analysis --- soy flour --- soy protein isolate --- insoluble carbohydrates --- periodate oxidation --- aldehydes generation --- condensation reactions --- soy adhesives --- biodegradable polymers --- rheological properties --- irrigation pipes --- soil burial test --- polyesters --- Bio-Flex® --- Mater-Bi® --- polymer degradation --- photo-oxidation --- pectin --- alginate --- biocomposites --- food packaging --- degradable films --- ionic liquids --- 3D printing --- digital light processing --- CO2 capture --- furanic polymer --- spectroscopy --- solid-state 13C-NMR --- FTIR --- Raman --- linear structure --- ring opening --- γ-lactone --- Diels-Alder --- SAS coprecipitation --- controlled drug delivery systems --- microparticles --- eudragit --- supercritical carbon dioxide --- dental materials --- composite resin --- layered double hydroxide --- calcium bentonite --- antibiofilm activity --- injection molding --- structure/properties relationship --- cavity temperature fast modulation --- chitosan --- cyclodextrin --- macromolecular complex --- dalargin --- enkephalin --- chymotrypsin --- NMR --- oral peptide delivery --- peptide stability --- cold-cure --- epoxy resins --- organic-inorganic hybrids --- sol-gel --- layered double hydroxides --- carbon nanotubes --- electrical properties --- polyphenols --- flavonoids --- furanics --- sulphur --- bio-polymers --- pentane --- heating value --- mulch films --- Ecovio® --- polylactide --- poly(butyleneadipate-co-butyleneterephtalate) --- polyethylene --- polymer melt --- primary and secondary relaxations --- Johari-Goldstein relaxation --- bond reorientation --- vibrational dynamics --- molecular-dynamics simulations --- UV-LED curing --- epoxy-acrylate resin --- biochar --- multiwalled carbon nanotubes --- composites --- reduced graphene oxide --- polyketone functionalization --- electrically-conductive nanocomposites --- UHMWPE --- wear tests --- bio-activity --- history --- cyclodextrin nanosponge --- crosslinked polymer --- diclofenac --- mefenamic acid --- molecular imprinting --- delayed addition --- binding isotherm --- binding selectivity --- imprinting factor --- polymers --- life cycle assessment --- polymeric materials --- sustainability --- plastic --- LCA --- additive manufacturing --- LCD printing --- epoxy --- polymer blends --- thermomechanical properties --- n/a
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