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Multisensor Systems for Analysis of Liquids and Gases: Trends and Developments

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889457212 Year: Pages: 175 DOI: 10.3389/978-2-88945-721-2 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-01-23 14:53:43
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Nowadays the application of multisensor systems for the analysis of liquids and gases is becoming more and more popular in analytical chemistry. Such systems, also known as “electronic tongues” and “electronic noses” are based on various types of chemical sensors and biosensors with different transduction principles combined with multivariate data processing protocols. These instruments received significant interest due to their simplicity, low costs and the possibility to obtain reliable chemical information from complex unresolved analytical signals. A distinct feature of electronic tongues and noses is that they can be calibrated for prediction of complex integral features in samples, like e.g. taste, odor, toxicity, geographical origin, general conformity with certain standards, etc. – the tasks that otherwise would require involvement of complex analytical instrumentation, human or animal sensory panels. In the present eBook the original research and review articles in the area of multisensor approach are collected. They dedicated to the novel sensor materials development, measuring techniques evaluation, electronics, data processing protocols and practical applications. An editorial foreword article is followed by the researches authored by leading scientists in the field of chemical sensors and artificial sensing systems. With this eBook we hope to inspire further interest and new research efforts in this exciting area.

Food Authentication: Techniques, Trends and Emerging Approaches

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ISBN: 9783039287482 / 9783039287499 Year: Pages: 182 DOI: 10.3390/books978-3-03928-749-9 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2020-06-09 16:38:57
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Multiple factors can directly influence the chemical composition of foods and, consequently, their organoleptic, nutritional, and bioactive properties, including their geographical origin, the variety or breed, as well as the conditions of cultivation, breeding, and/or feeding, among others. Therefore, there is a great interest in the development of accurate, robust, and high-throughput analytical methods to guarantee the authenticity and traceability of foods. For these purposes, a large number of sensorial, physical, and chemical approaches can be used, which must be normally combined with advanced statistical tools. In this vein, the aim of the Special Issue “Food Authentication: Techniques, Trends, and Emerging Approaches” is to gather original research papers and review articles focused on the development and application of analytical techniques and emerging approaches in food authentication. This Special Issue comprises 12 valuable scientific contributions, including one review article and 11 original research works, dealing with the authentication of foods with great commercial value, such as olive oil, Iberian ham, and fruits, among others.

Extraction Strategies to Recover Bioactive Compounds, Incorporation into Food and Health Benefits

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ISBN: 9783039289691 / 9783039289707 Year: Pages: 94 DOI: 10.3390/books978-3-03928-970-7 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2020-06-09 16:38:57
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We are pleased to present this book, which is a reprint of articles from the Special Issue entitled “Extraction Strategies to Recover Bioactive Compounds, Incorporation into Food, and Health Benefits” published online in the open access journal Foods (ISSN 2304-8158) from 2019 to 2020 (available at: https://www.mdpi.com/journal/foods/special_issues/extraction). Firstly, this book gathers studies addressing several strategies applied to obtain bioactive products and extracts, not only from food matrices but also from agri-food byproducts, which can serve as new natural additives, nutraceuticals, and functional ingredients for pharmaceutical, cosmetics, and food industries. In particular, free and bound phenolic compounds are explored in buckwheat, sesame, and olive leafy byproducts. Overall, these studies outline new valorization methods and offer new opportunities for alternative practices in the agro-industrial sector that help to migrate toward a circular bioeconomy model. This book also presents studies that predict bioactive components in fruits through mathematical tools and support the formulation of a novel beverage rich in resveratrol, a phenolic compound whose bioactivity is well recognized.

Advances in Near Infrared Spectroscopy and Related Computational Methods

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ISBN: 9783039280520 9783039280537 Year: Pages: 496 DOI: 10.3390/books978-3-03928-053-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Analytical Chemistry
Added to DOAB on : 2020-01-30 16:39:46
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In the last few decades, near-infrared (NIR) spectroscopy has distinguished itself as one of the most rapidly advancing spectroscopic techniques. Mainly known as an analytical tool useful for sample characterization and content quantification, NIR spectroscopy is essential in various other fields, e.g. NIR imaging techniques in biophotonics, medical applications or used for characterization of food products. Its contribution in basic science and physical chemistry should be noted as well, e.g. in exploration of the nature of molecular vibrations or intermolecular interactions. One of the current development trends involves the miniaturization and simplification of instrumentation, creating prospects for the spread of NIR spectrometers at a consumer level in the form of smartphone attachments—a breakthrough not yet accomplished by any other analytical technique. A growing diversity in the related methods and applications has led to a dispersion of these contributions among disparate scientific communities. The aim of this Special Issue was to bring together the communities that may perceive NIR spectroscopy from different perspectives. It resulted in 30 contributions presenting the latest advances in the methodologies essential in near-infrared spectroscopy in a variety of applications.

Keywords

hyperspectral imaging --- variety discrimination --- Chrysanthemum --- deep convolutional neural network --- DNA --- FTIR spectroscopy --- rapid identification --- PLS-DA --- animal origin --- near-infrared hyperspectral imaging --- raisins --- support vector machine --- pixel-wise --- object-wise --- maize kernel --- hyperspectral imaging technology --- accelerated aging --- principal component analysis --- support vector machine model --- standard germination tests --- blackberries --- Rubus fructicosus --- phenolics --- carotenoids --- bioanalytical applications --- near infrared --- chemometrics --- VIS/NIR hyperspectral imaging --- corn seed --- classification --- freeze-damaged --- image processing --- imaging visualization --- wavelength selection --- NIR spectroscopy --- binary dragonfly algorithm --- ensemble learning --- quantitative analysis modeling --- NIR --- SCiO --- pocket-sized spectrometer --- cheese --- fat --- moisture --- multivariate data analysis --- Fourier-transform near-infrared spectroscopy --- glucose --- fructose --- dry matter --- partial least square regression --- Ewing sarcoma --- Fourier transform infrared spectroscopy --- FTIR --- chemotherapy --- bone cancer --- calibration transfer --- NIR spectroscopy --- PLS --- quantitative analysis model --- melamine --- FT-IR --- NIR spectroscopy --- quantum chemical calculation --- anharmonic calculation --- overtones --- combination bands --- near infrared spectroscopy --- Trichosanthis Fructus --- geographical origin --- chemometric techniques --- crude drugs --- prepared slices --- support vector machine-discriminant analysis --- near-infrared fluorescence --- fluorescent probes --- Zn(II) --- di-(2-picolyl)amine --- living cells --- cellular imaging --- near-infrared (NIR) spectroscopy --- calibration transfer --- affine invariance --- multivariate calibration --- partial least squares (PLS) --- NIR --- direct model transferability --- MicroNIR™ --- SVM --- hier-SVM --- SIMCA --- PLS-DA --- TreeBagger --- PLS --- calibration transfer --- agriculture --- photonics --- imaging --- spectral imaging --- spectroscopy --- handheld near-infrared spectroscopy --- pasta/sauce blends --- partial least squares calibration --- nutritional parameters --- bootstrapping soft shrinkage --- partial least squares --- extra virgin olive oil --- adulteration --- FT-NIR spectroscopy --- near-infrared spectroscopy --- ethanol --- anharmonic quantum mechanical calculations --- isotopic substitution --- overtones --- combinations bands --- seeds vitality --- rice seeds --- near-infrared spectroscopy --- hyperspectral image --- discriminant analysis --- near-infrared spectroscopy --- counter propagation artificial neural network --- detection --- auxiliary diagnosis --- BRAF V600E mutation --- colorectal cancer --- tissue --- paraffin-embedded --- deparaffinized --- stained --- ultra-high performance liquid chromatography --- Folin–Ciocalteu --- total hydroxycinnamic derivatives --- phytoextraction --- near-infrared spectroscopy --- origin traceability --- data fusion --- Paris polyphylla var. yunnanensis --- Fourier transform mid-infrared spectroscopy --- near-infrared spectroscopy --- aquaphotomics --- water --- light --- near infrared spectroscopy --- water-mirror approach --- perturbation --- biomeasurements --- biodiagnosis --- biomonitoring --- Vitis vinifera L. --- proximal sensing --- precision viticulture --- near infrared --- chemometrics --- non-destructive sensor --- NIRS --- osteopathy --- late preterm --- brain --- splanchnic --- Raman spectroscopy --- hyperspectral imaging --- analytical spectroscopy --- counterfeit and substandard pharmaceuticals --- DFT calculations --- chemometrics --- PLSR --- API --- lumefantrine --- artemether --- antimalarial tablets --- FT-NIR spectroscopy --- PLS-R --- water --- glucose --- test set validation --- RMSEP --- hyperspectral image processing --- perfusion measurements --- clinical classifications --- n/a

Mass Spectrometric Proteomics

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ISBN: 9783038978268 9783038978275 Year: Pages: 192 DOI: 10.3390/books978-3-03897-827-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General) --- Therapeutics
Added to DOAB on : 2019-04-25 16:37:17
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As suggested by the title of this Special Issue, liquid chromatography-mass spectrometry plays a pivotal role in the field of proteomics. Indeed, the research and review articles&nbsp; published in the Issue clearly evidence how the data produced by this sophisticated methodology may promote impressive advancements in this area. From among the topics discussed in the Issue, a few point to the development of&nbsp; new procedures for the&nbsp; optimization of the experimental conditions that should be applied&nbsp; for the identification of proteins present in complex mixtures.&nbsp; Other applications&nbsp; described in these articles show&nbsp; the huge potential of&nbsp; these strategies in the protein profiling of organs and&nbsp; range from&nbsp; to the study of post-translational tissue modifications to the investigation of the molecular mechanisms behind human disorders and the identification of potential biomarkers of these diseases.

The Close Linkage between Nutrition and Environment through Biodiversity and Sustainability: Local Foods, Traditional Recipes and Sustainable Diets

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ISBN: 9783039213832 9783039213849 Year: Pages: 216 DOI: 10.3390/books978-3-03921-384-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2019-12-09 11:49:16
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The Close Linkage between Nutrition and Environment through Biodiversity and Sustainability: Local Foods, Traditional Recipes, and Sustainable Diets” is focused on the close correlation between the potential benefits and “functional role” of food and territory, and it includes papers on the characterization of local foods and traditional recipes as well as on the promotion of traditional dietary patterns and sustainable diets.

Keywords

Italian garlic --- carbohydrates --- fructans --- dietary fibre --- soluble sugars --- cultivar --- environmental conditions --- agave sap --- actinomycetes --- anticancer activity --- saponins --- metabolomics --- ecosystem goods and services --- environmental sustainability --- livelihood needs --- Schinziophyton rautanenii --- Southern Africa --- sustainable development goals --- sustainable diets --- alkaloids --- antimicrobial activity --- germplasm --- Klebsiella --- landraces --- lupanine --- Pseudomonas --- varieties --- traditional food --- antimicrobial --- bioassay --- PIRG --- fractions --- consumer culture theory --- post millennials --- cheese --- loyalty --- Cyprus --- traditional food --- traditional sausages --- conventional sausages --- traditional hams --- conventional hams --- traditional meat products --- pork --- fatty acids --- mountain --- sustainability --- altitude --- food --- health --- FTIR-ATR --- traditional Italian recipes --- chemometrics --- PCA --- Olea europaea L. --- olive oil --- geographical origin --- processing system --- harvesting time --- olive oil quality --- fatty acid composition --- sensorial evaluation --- consumer preferences --- agro-ecology biodiversity --- climate resilience --- health --- local foods --- bioactive components --- traditional recipes --- traditional dietary patterns --- edible plants --- Mediterranean --- innovative gastronomy --- tetraploid wheat --- metallomics --- macronutrients --- micronutrients --- plants adaptability --- Provolone del Monaco --- traditional foods --- biodiversity --- sustainability --- nutritional composition --- bioactive components --- typical/local foods --- environmental and socio-demographic factors --- traditional recipes --- sustainable diets --- traditional dietary patterns --- Food Composition Databases

Lignans

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ISBN: 9783038979081 9783038979098 Year: Pages: 384 DOI: 10.3390/books978-3-03897-909-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General) --- Organic Chemistry
Added to DOAB on : 2019-06-26 10:09:00
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Lignans are a class of natural products found mainly in plants. They have a wide variety of structures and exhibit a range of potent biological activities. Lignans are also well-known components of a number of widely eaten foods and are frequently studied for their dietary impact. Owing to these factors, lignans have been extensively studied by scientists from a large number of disciplines. This collection of research and review articles describes topics ranging in scope from the recent isolation and structural elucidation of new lignans, strategies towards the chemical synthesis of lignans, assessment of their biological activities and potential for further therapeutic development. Research showing the impact of lignans in the food and agricultural industries is also presented.

Keywords

lignans --- chemometrics --- neolignans --- flavonolignans --- chemical space --- drug-like --- Lespedeza cuneata --- lignan glycoside --- flavonoid glycoside --- cytotoxicity --- adipocyte and osteoblast differentiation --- Bursera --- Burseraceae --- lignans --- lignan --- molecular dynamics --- intermolecular interactions --- graph theory --- lignans --- heilaohu --- tujia ethnomedicine --- chemical characterization --- cytotoxicity --- antioxidant --- cultivar --- environment --- flax --- flavonol --- genetic --- hydroxycinnamic acid --- lignan --- seed --- aryldihydronaphthalene lignan --- arylnaphthalene lignan --- oxidation --- synthesis --- lignans --- dibenzyl butyrolactones --- anti-proliferative --- acyl-Claisen --- stereoselective synthesis --- Schisandra rubriflora --- Schisandra chinensis --- red-flowered Chinese magnolia vine --- Chinese magnolia vine --- lignans --- phytochemical analysis --- UHPLC-MS/MS --- anti-inflammatory activity --- LOX --- COX --- sPLA2 --- lignans --- neolignans --- Lauraceae --- chemical components --- chemical structures --- dietary lignans --- national databases --- food groups --- dietary intake --- harmonized databases --- lignans --- in silico studies --- podophyllotoxin --- antibacterial activity --- acetylcholinesterase inhibitors --- antioxidant activity --- cytotoxicity --- natural products --- total synthesis --- lignan --- Bursera fagaroides --- podophyllotoxin-type lignans --- cell cycle --- cell migration --- epiboly --- microtubules --- F-actin --- cancer --- lignans --- animal health --- cattle --- enterolignan --- human health --- pharmacokinetic --- ruminant --- secoisolariciresinol diglucoside --- Lignan --- bitterness --- taste-active compound --- quantification --- oak ageing --- lignans --- norlignans --- 9-norlignans --- semisynthesis --- hydroxymatairesinol --- bioactivity --- lignans --- oxidation --- lignans --- diet --- antioxidants --- health promotion --- chronic diseases --- Schisandrae Chinensis Fructus --- wild --- cultivated --- multiple bioactive components --- simultaneous quantitation

Extractable and Non-Extractable Antioxidants

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ISBN: 9783039214372 9783039214389 Year: Pages: 234 DOI: 10.3390/books978-3-03921-438-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology --- Nutrition and Food Sciences
Added to DOAB on : 2019-12-09 11:49:15
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The Special Issue “Extractable and Non-Extractable Antioxidants” gives an updated view on antioxidants—both in their extractable and non-extractable form—in the different food groups, their products thereof, and food preparations as well as byproducts and biomass waste. The potential beneficial properties of these compounds and nutraceutical formulations are described in the various studies covered in this Special Issue.

Keywords

anthocyanins --- polyphenolic compounds --- classic extraction --- ultrasound assisted extraction --- antioxidant capacity --- daidzein --- cyclodextrin --- inclusion complex --- antioxidant activity --- trans-cinnamaldehyde --- ?-cyclodextrin --- self-inclusion --- anti-inflammation --- antioxidant --- Pleurotus ostreatus --- antioxidant activity --- polyphenols --- digestibility --- fermentation --- cereals --- legumes --- Chinese mistletoes --- phenolics --- phenolic contents --- antioxidant activity --- forest residues --- phenolic compounds --- natural antioxidants --- quercitrin --- value-added by-products --- Camellia sinensis --- black teas --- catechins --- antioxidant activity --- LC-ESI-Q-TOF-MS --- principal component analysis --- extractable --- non-extractable --- antioxidant activity --- agglomerative hierarchical clustering --- principal component analysis --- multivariate analysis --- nuclear magnetic spectroscopy --- nitric oxide scavengers --- pre-column HPLC method --- Aloysia triphylla --- phenolics --- antioxidants --- dietary supplements --- botanicals --- bioactive compounds --- antioxidants --- study approach --- integrated food research --- dedicated databases --- dietary assessment. --- biorefinery --- circular economy --- grape seed --- bio-based --- chemometrics --- Cagnulari marc --- Naviglio Extractor® --- green extraction --- endothelial cell --- oxidative stress --- polyphenols --- berries jam --- phenolic acids --- flavonols glycosides --- degradation --- HPLC-ESI/MS --- antioxidant properties --- digestive enzyme --- nutrient --- polymerization --- proanthocyanidins --- eggplant --- flour --- phenolics --- antioxidant activity --- functional ingredient --- sour cherry --- anthocyanins --- extractable polyphenols --- non-extractable polyphenols --- Italian popular recipes --- food composition database --- antioxidant properties --- extractable compounds --- non-extractable compounds --- ferric reducing antioxidant power (FRAP) --- total polyphenol content (TPC) --- n/a

The Future of Hyperspectral Imaging

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ISBN: 9783039218226 9783039218233 Year: Pages: 220 DOI: 10.3390/books978-3-03921-823-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Chemistry (General)
Added to DOAB on : 2019-12-09 16:39:37
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Keywords

hyperspectral imaging --- Raman --- fluorescence --- sorting --- quality control --- black polymers --- PZT --- classification --- machine learning --- alternating direction method of multipliers --- Cramer–Rao lower bound --- forward observation model --- linear mixture model --- maximum likelihood --- multiband image fusion --- total variation --- fingerprints --- blood detection --- age determination --- hyperspectral imaging --- lossless compression --- multitemporal hyperspectral images --- information theoretic analysis --- predictive coding --- hyperspectral imaging --- plant phenotyping --- disease detection --- spectral tracking --- time series --- hyperspectral imaging --- principal component analysis --- oxygen saturation --- wound healing --- diabetic foot ulcer --- Raman spectroscopy --- chemical imaging --- compressive detection --- spatial light modulators (SLM) --- digital micromirror device (DMD) --- digital light processor (DLP) --- optimal binary filters --- Chemometrics --- multivariate data analysis --- compressive sensing --- hyperspectral imaging --- multiplexing system --- liquid crystal --- three-dimensional imaging --- integral imaging --- remote sensing --- point target detection --- CS-MUSI --- hyperspectral --- video --- imaging --- coastal dynamics --- moving vehicle imaging --- bi-directional reflectance distribution function (BRDF) --- hemispherical conical reflectance factor (HCRF) --- stereo imaging --- digital elevation model --- Virginia Coast Reserve Long Term Ecological Research (VCR LTER) --- Hyperspectral imaging --- painting samples --- retouching pigments --- watercolours --- multivariate analysis --- potatoes --- sprouting --- primordial leaf count --- hyperspectral imaging --- spectroscopy --- fusion --- wavelength selection --- PLSR --- interval partial least squares --- deep learning --- hyperspectral imaging --- neural networks --- machine learning --- image processing --- hyperspectral imaging --- medical imaging by HSI --- HSI for biology --- remote sensing --- hyperspectral microscopy --- fluorescence hyperspectral imaging --- Raman hyperspectral imaging --- infrared hyperspectral imaging --- statistical methods for HSI --- hyperspectral data mining and compression --- statistical methods for HSI --- hyperspectral data mining and compression

Qualitative and Quantitative Analysis of Bioactive Natural Products 2018

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ISBN: 9783038977889 Year: Pages: 374 DOI: 10.3390/books978-3-03897-789-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Biology --- Science (General)
Added to DOAB on : 2019-04-05 10:34:31
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Throughout most of history, medicinal plants and their active metabolites have represented a valuable source of compounds used to prevent and to cure several diseases. Interest in natural compounds is still high as they represent a source of novel biologically/pharmacologically active compounds. Due to their high structural diversity and complexity, they are interesting structural scaffolds that can offer promising candidates for the study of new drugs, functional foods, and food additives.Plant extracts are a highly complex mixture of compounds and qualitative and quantitative analyses are necessary to ensure their quality. Furthermore, greener methods of extraction and analysis are needed today.This book is based on articles submitted for publication in the Special Issue entitled “Qualitative and Quantitative Analysis of Bioactive Natural Products” that collected original research and reviews on these topics.

Keywords

Talaromyces pinophilus --- talarodiolide --- macrodiolides --- GC/MS --- secondary metabolites --- anthocyanins --- red cabbage --- recycling preparative high performance liquid chromatography --- stability --- UHPLC-MS/MS --- decursin --- decursinol angelate --- nodakenin --- decursinol --- Ginkgo biloba Extract (GBE) --- chromatogram-bioactivity correlation --- bioactive compounds --- endothelial function --- wine --- volatile compounds --- terrain conditions --- odor-activity values --- SPME-GC/MS --- Bolbostemma paniculatum --- identification --- LTQ-Orbitrap --- UPLC --- multivariate statistical analysis --- cannabidiol --- CBD oil --- terpenes --- hemp seed oil --- GC-MS --- HPLC-Q-Exactive-Orbitrap-MS --- Rossa da inverno sel. Rojo Duro onion cultivar --- geographical origin --- amino acids content --- HPLC analysis --- statistical evaluations --- food traceability --- aleuritolic acid --- autophagy --- apoptosis --- HPLC --- Curcuma longa --- turmeric --- curcuminoids --- turmerone --- quantification --- Quercus acuta leaf --- antioxidant --- antibacterial activity --- Staphylococcus aureus --- Erigeron breviscapus extract --- UPLC-ESI-MS/MS --- cerebral ischemia reperfusion injury --- scutellarin --- scutellarein --- HPLC --- Podospermum --- Scorzonera --- triterpenes --- ginseng berry extract --- ginsenosides --- stereoselective and simultaneous analysis --- pharmacokinetics --- oral administration --- saffron --- crocins --- UHPLC analysis --- separation optimisation --- artificial neural network --- response surface methodology --- bioactive natural compounds --- secondary metabolites --- Alzheimer’s disease --- Olea europaea L. --- liquid chromatography --- gas chromatography --- mass spectrometry --- secondary metabolites --- olive leaves --- Moroccan region --- phenolic compounds --- liquid chromatography-mass spectrometry --- chemometrics --- metabolic profiling --- Sorbus --- fruit powders --- phenolic compounds --- carotenoids --- sugars --- organic acids --- chili --- capsaicinoids --- phenolics --- free radical-scavenging --- geographical variation --- 1-triacontanol --- HPLC-ELSD --- biostimulant --- method validation --- Myristica fragrans --- nutmeg --- essential oil --- ionic liquids --- hydrodistillation --- MODDE experimental design --- rice --- phenolic compounds --- phenolic acids --- flavonoids --- anthocyanins --- proanthocyanidins --- antioxidant activity --- extraction --- HPLC methods --- phenolic compounds --- Spondias spp. --- UPLC-MS --- antioxidant capacity --- Iris lactea Pall. var. chinensis (Fisch.) Koidz. --- HPLC-Q-TOF-MS/MS --- qualitative analysis --- quantitative analysis --- C-glycosylflavone --- traditional Chinese medicine decoction --- quality evaluation --- UPLC-QTOF-MS --- UFLC-QQQ-MS --- ShenFu prescription decoction

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