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Due to increasing global food needs as a result of population growth, the use of new food sources has gained interest in the last decade. However, the inclusion of new foods in our diet, as well as the increased interest of the population in consuming foods with better nutritional properties, has increased the need for adequate food analytical methods. This monographic issue presents innovative methods of chemical analysis of foods, as well as the nutritional and chemical characterization of foods whose consumption is expected to increase worldwide in the coming years.

refined commercial salmon oil --- n-3 long-chain polyunsaturated fatty acids (n-3 LCPUFAs) concentration --- EPA --- DHA --- EPA+DHA --- total FA yield --- process variable maximization --- response surface methodology (RSM) --- multiple response optimization --- desirability function --- avocado oil --- oil extraction --- antioxidants compounds --- fatty acid profile --- water holding capacity --- seaweeds --- Gracilaria --- carbohydrates --- fatty acids --- vitamins --- deep eutectic solvents --- Artemisia argyi leaves --- phenolic acids --- extraction --- response surface methodology --- amaranth protein --- flavourzyme --- alcalase --- bioactive peptides --- hydrolysates --- N-carbamylglutamate --- feeds --- animal products --- milk --- HPLC-MS/MS --- acrylamide --- crisps --- temperature --- frying time --- blanching --- thickness --- scorpion (Buthus martensii Karsch) protein --- ultrasonic extraction --- response surface methodology --- scanning electron microscopy --- functional properties --- Amazonian fruits --- antioxidant --- phenolic compounds --- UPLC-MSE --- bioactive compounds --- prebiotic --- polysaccharides --- seaweed --- Rhodophyceae --- Phaeophyceae --- Chlorophyceae --- n/a

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This book is a collection of 13 innovative papers describing the state of the art and the future perspectives in solid-phase extraction covering several analytical fields prior to the use of gas or liquid chromatographic analysis. New sorptive materials are presented including carbon nanohorn suprastructures on paper support, melamine sponge functionalized with urea–formaldehyde co-oligomers, chiral metal–organic frameworks, UiO-66-based metal–organic frameworks, and fabric phase sorptive media for various applications. Solid-phase extraction can be applied in several formats aside from the conventional cartridges or mini-column approach, e.g., online solid-phase extraction, dispersive solid-phase microextraction, and in-syringe micro-solid-phase extraction can be very helpful for analyte pre-concentration and sample clean-up. Polycyclic musks in aqueous samples, 8-Nitroguanine in DNA by chemical derivatization antibacterial diterpenes from the roots of salvia prattii, perfluoroalkyl substances (PFASs) in aater samples by bamboo charcoal-based SPE, parabens in environmental water samples, benzotriazoles as environmental pollutants, organochlorine pesticide residues in various fruit juices and water samples and synthetic peptide purification are among the applications cited in this collection. All these outstanding contributions highlight the necessity of this analytical step, present the advantages and disadvantages of each method and focus on the green analytical chemistry guidelines that have to be fulfilled in current analytical practices.

graphene --- solid-phase extraction --- polycyclic musks --- water --- GC–MS/MS --- online solid-phase extraction --- LC-MS/MS --- peroxynitrite --- nitrated DNA lesion --- derivatization --- isotope-dilution --- Salvia prattii --- antibacterial diterpenes --- hydrophilic solid-phase extraction --- preparative high-performance liquid chromatography --- bamboo charcoal --- solid-phase extraction --- perfluoroalkyl acids --- liquid chromatography–tandem mass spectrometry --- carbon nanohorns --- sorptive phase --- paper --- microextraction --- antidepressants --- in-syringe micro solid-phase extraction --- personal care products --- response surface methodology --- parabens --- wastewater --- benzotriazoles --- solid-phase extraction --- environmental samples --- solid-phase extraction --- melamine sponge --- urea-formaldehyde co-oligomers --- HPLC-DAD --- metal-organic frameworks --- enantiomeric excess --- chiral compounds --- solid-phase extraction --- metal-organic frameworks --- dispersive solid-phase extraction --- organic pollutants --- analyte partitioning --- FPSE --- in-house loaded SPE --- HPLC-PDA --- method validation --- IBD --- extraction --- fabric phase sorptive extraction --- gas chromatography-mass spectrometry --- organochlorine pesticides --- sample preparation --- peptide --- solid phase extraction (SPE) --- preparative purification --- gradient elution --- solid phase peptide synthesis

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The re-use of industrial food residues is essential in the general framework of rational waste handling and recycling, which aims at the minimizing environmental impact of food production and producing functional food ingredients. Agri-food processing waste has long been considered a valuable biomass with a significant polyphenol load and profile. Polyphenols, aside from being powerful antioxidants that confer inherent stability to a variety of foods, may possess versatile bioactivities including anti-inflammatory and chemopreventive properties. The valorization of agri-food waste as a prominent source of polyphenols stems from the enormous amount of food-related material discharged worldwide and the emerging eco-friendly technologies that allow high recovery, recycling, and sustainable use of these materials. This book addresses the concept of recovering natural polyphenolic antioxidants from waste biomass generated by agri-food and related industrial processes and presents state-of-the-art applications with prospect in the food, cosmetic, and pharmaceutical industries.

green oleo-extraction --- zero-waste biorefinery --- natural antioxidants and flavors --- food-grade solvents --- vegetable oils and derivatives --- relative solubility simulation --- polyphenols --- antioxidant --- anti-inflammatory --- extraction --- functional food --- olive leaves --- infrared-assisted extraction --- response surface methodology --- antioxidants --- antimicrobial activity --- Box–Behnken design --- proanthocyanidins --- Brewers’ spent grains --- sonotrode ultrasonic-assisted extraction --- HPLC-fluorometric detector (FLD)–MS --- phenolics --- antioxidants --- anti-ageing --- skin whitening --- grape marc --- wine lees --- brewer’s spent grain --- polyphenols --- microwave assisted extraction --- ultrasound assisted extraction --- liquid chromatography-mass spectrometry --- olive mill wastewater --- polyphenols --- valorization --- adsorbents --- ophthalmic hydrogel --- anti-inflammatory and antioxidant activity --- Mango --- by-products --- antiplatelet activity --- bioactive compounds --- HPLC-DAD-q-TOF-MS --- Dioscorea batatas --- Chinese yam --- phenanthrenes --- quantitative analysis --- anthocyanins --- antioxidants --- deep eutectic solvents --- extraction --- polyphenols --- saffron --- n/a

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The Special Issue Machining—Recent Advances, Applications and Challenges is intended as a humble collection of some of the hottest topics in machining. The manufacturing industry is a varying and challenging environment where new advances emerge from one day to another. In recent years, new manufacturing procedures have retained increasing attention from the industrial and scientific community. However, machining still remains the key operation to achieve high productivity and precision for high-added value parts. Continuous research is performed, and new ideas are constantly considered. This Special Issue summarizes selected high-quality papers which were submitted, peer-reviewed, and recommended by experts. It covers some (but not only) of the following topics: High performance operations for difficult-to-cut alloys, wrought and cast materials, light alloys, ceramics, etc.; Cutting tools, grades, substrates and coatings. Wear damage; Advanced cooling in machining: Minimum quantity of lubricant, dry or cryogenics; Modelling, focused on the reduction of risks, the process outcome, and to maintain surface integrity; Vibration problems in machines: Active and passive/predictive methods, sources, diagnosis and avoidance; Influence of machining in new concepts of machine–tool, and machine static and dynamic behaviors; Machinability of new composites, brittle and emerging materials; Assisted machining processes by high-pressure, laser, US, and others; Introduction of new analytics and decision making into machining programming. We wish to thank the reviewers and staff from Materials for their comments, advice, suggestions and invaluable support during the development of this Special Issue.

dry-cutting --- concrete --- segmented diamond blade --- topography --- diameter variation --- weight loss --- in situ estimation --- SACE-drilled hole depth --- spark-assisted chemical engraving --- glass machining --- computer vision --- electrochemical discharge machining --- butt weld joint --- fatigue --- crack growth rate --- weld reinforcement --- cooling rate --- artificial neutral network --- cutting parameters --- magnesium alloys --- optimization --- prime machining costs --- surface roughness --- electropulsing --- machinability --- chip compression ratio --- current density --- specific cutting energy --- cutting edge microgeometry --- residual stress --- finite element model --- cutting edge preparation --- Inconel 718 --- stiffness properties --- parameter identification --- connections --- machine tool --- response surface methodology --- design of experiments --- modal testing --- plastic zone --- fracture mechanism --- steel sheet --- cutting process --- Huber–Mises stress --- finite element method --- microscopic analysis --- PVD Ti0.41Al0.59N/Ti0.55Al0.45N coating --- cutting temperature --- Inconel 718 --- cutting tool wear --- secondary adhesion wear --- turning --- machining --- aluminium --- flank super abrasive machining (SAM) --- flank milling --- Inconel® 718 --- roughness --- residual stress --- machine vision --- on-machine monitoring --- tool insert condition --- computer numerical control --- turning machine tools --- multi-beam laser --- heat transfer analysis --- fast simulation --- GPU --- analytic solution --- minimum quantity lubrication --- surface grinding --- multi-objective optimization --- grey relational analysis --- surface topography --- sustainable machining --- Gamma-TiAl --- superalloys --- slight materials --- drilling --- titanium aluminides --- additive manufacturing --- single point incremental sheet forming --- residual stresses --- X-ray diffraction --- ultra-precision machining --- slow tool servo --- surface topography --- simulation --- microlens array --- sinusoidal grid --- Milling stability --- variable pitch --- chatter --- self-excitation --- milling --- ceramics --- ductile machining --- PCD --- corner radius --- material removal rate --- adhesive --- machining --- modelling --- dry --- CFRP/UNS A92024 --- induction assisted milling --- tool wear --- taguchi method --- cutting tool --- machining temperatures at two deformation zones --- force–temperature correlation through analytical modeling --- high computational efficiency --- real-time prediction --- hybrid stacks drilling --- minimum quantity lubrication --- hole quality --- tool wear --- WEDM --- EN 31 steel --- surface roughness --- fractal dimension --- ANN --- GA --- cryogenic machining --- cutting tool --- cutting geometry --- titanium --- power consumption --- material-removal rate --- specific energy consumption --- grain density --- modeling --- shape memory alloy --- superelastic nitinol --- WEDM --- heat transfer search algorithm --- DSC test --- shape memory effect --- dish angle --- trochoidal step --- response surface methodology --- surface roughness --- desirability approach --- tool wear --- trochoidal milling --- titanium alloy --- chip morphology --- thin-wall machining --- chatter --- vibration --- deflection --- damping --- prediction --- workholding --- fixture --- dynamic --- stability --- titanium alloys --- machining --- turning --- machinability --- tool wear --- laser-assisted machining --- Taguchi method --- optimal machining conditions --- machining characteristic --- milling --- the cutting force components --- vibrations --- magnesium alloys --- artificial neural networks

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This book will provide the most recent knowledge and advances in Sample Preparation Techniques for Separation Science. Everyone working in a laboratory must be familiar with the basis of these technologies, and they often involve elaborate and time-consuming procedures that can take up to 80% of the total analysis time. Sample preparation is an essential step in most of the analytical methods for environmental and biomedical analysis, since the target analytes are often not detected in their in-situ forms, or the results are distorted by interfering species. In the past decade, modern sample preparation techniques have aimed to comply with green analytical chemistry principles, leading to simplification, miniaturization, easy manipulation of the analytical devices, low costs, strong reduction or absence of toxic organic solvents, as well as low sample volume requirements.Modern Sample Preparation Approaches for Separation Science also provides an invaluable reference tool for analytical chemists in the chemical, biological, pharmaceutical, environmental, and forensic sciences.

vitamins --- extraction --- determination --- review --- sample preparation --- matrix solid phase dispersion --- sorbent --- miniaturization --- on-line --- blueberry --- non-anthocyanin polyphenol --- vortex-assisted dispersive liquid-liquid microextraction --- response surface methodology --- desirability function approach --- nail --- curie temperature --- high-frequency heating --- liquid chromatography–tandem mass spectrometry --- caffeine --- amlodipine --- gas chromatography --- hydrogel --- hormones --- pectin --- polyvinyl alcohol --- sample preparation --- in-tube SPME --- UHPLC-MS/MS --- organic-based monoliths --- antipsychotics --- plasma samples --- schizophrenic’ patients --- salting-out assisted liquid–liquid extraction --- sugaring-out assisted liquid–liquid extraction --- hydrophobic-solvent assisted liquid–liquid extraction --- subzero-temperature assisted liquid–liquid extraction --- phenolic compounds --- sorbent-based techniques --- multi-spheres adsorptive micro-extraction (MSA?E) --- floating sampling technology --- caffeine and acetaminophen tracers --- environmental water matrices --- vortex-assisted dispersive liquid-liquid microextraction --- China herbal tea --- pesticides residue --- aflatoxins --- UPLC-MS/MS --- vortex-synchronized matrix solid-phase dispersion --- crab shells --- ionic liquids --- anthraquinones --- Cassiae Semen --- sample preparation --- nanocomposite --- pathogenic --- enrichment --- nucleic acid isolation --- sample preparation with TLC/HPTLC --- solvent front position extraction --- solvent delivery with a moving pipette --- automation --- LC–MS/MS --- environmental analysis --- whole water --- trace analysis --- SPE --- large volume --- in-line filter --- sand --- flow rate --- pharmaceuticals --- hormones --- pesticides --- space instrumentation --- liquid chromatography --- oligopeptides --- trapping system --- membrane-based microextraction --- barbiturates --- simultaneous determination --- whole blood --- urine --- liver --- sample preparation --- oxylipins --- protein precipitation --- liquid–liquid extraction --- solid-phase extraction --- biological samples --- chlorophenoxy acid herbicides --- HPLC --- hydrophobic in-tube solid-phase microextraction --- poly (OMA-co-TRIM) monolithic column --- rice grains --- gold --- sample preparation --- preconcentration --- geological samples