Download or read book A Supercritical Fluid Extraction gas Chromatography mass Spectrometry Method for Determination of Polycyclic Aromatic Hydrocarbons in Seafood written by Md. Yeakub Ali and published by . This book was released on 1996 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Methods of Analysis by the U S Geological Survey National Water Quality Laboratory written by Mary C. Olson and published by . This book was released on 2004 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Handbook of Seafood and Seafood Products Analysis written by Fidel Toldrá and published by CRC Press. This book was released on 2024-03-08 with total page 969 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seafood and seafood products represent some of the most important foods in almost all types of societies around the world. More intensive production of fish and shellfish to meet high demand has raised some concerns related to the nutritional and sensory qualities of these cultured fish in comparison to their wild-catch counterparts. In addition, the variety in processing, preservation, and storage methods from traditional to modern is contributing to an increase in variability in consumer products. This second edition of the Handbook of Seafood and Seafood Products Analysis brings together the work of 109 experts who focus on the most recent research and development trends in analytical techniques and methodologies for the analysis of captured fresh and preserved seafood, either cultivated or wild, as well as for derived products. After providing a general introduction, this handbook provides 48 chapters distributed in six sections: Chemistry and biochemistry focuses on the analysis of main chemical and biochemical compounds of seafood. Processing control describes the analysis of technological quality and the use of some non-destructive techniques as well as methods to check freshness, detection of species, and geographic origin and to evaluate smoke flavoring. Nutritional quality deals with the analysis of nutrients in seafood such as essential amino acids, bioactive peptides, antioxidants, vitamins, minerals and trace elements, and fatty acids. Sensory quality covers the sensory quality and main analytical tools to determine color, texture, flavor and off-flavor, quality index methods as well as sensory descriptors, sensory aspects of heat-treated seafood, and sensory perception. Biological Safety looks at tools for the detection of spoilage, pathogens, parasites, viruses, marine toxins, antibiotics, and GM ingredients. Chemical Safety focuses on the identification of fish species, detection of adulterations, veterinary drug residues, irradiation, food contact materials, and chemical toxic compounds from the environment, generated during processing or intentionally added. Key Features: This comprehensive handbook provides a full overview of the tools now available for the analysis of captured fresh and preserved seafood, either cultivated or wild, as well as for derived products. This is a comprehensive and informative book that presents both the merits and limitations of analytical techniques and also gives future developments for guaranteeing the quality of seafood and seafood products. This cutting-edge work covers processes used from all of the seven seas to ensure that consumers find safe, nutritionally beneficial, and appealing seafood products at their markets and restaurants. This handbook covers the main types of worldwide available analytical techniques and methodologies for the analysis of seafood and seafood products.

Download or read book Systematic Approach to On line Supercritical Fluid Extraction Supercritical Fluid Chromatography Tandem Mass Spectrometry Method Development written by Alison Paige Wicker and published by . This book was released on 2020 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coupling supercritical fluid extraction (SFE) on-line with supercritical fluid chromatography (SFC) - tandem mass spectrometry (MS/MS) provides a platform for extraction, separation, and detection in a single analysis. Utilization of this technique simplifies sample preparation while limiting sample loss and/or contamination and significantly decreases total analysis time. SFE-SFC-MS/MS requires consideration of many extraction and chromatographic variables to not only provide the most efficient extraction, but to analytically transfer the extracted analytes to the column for separation. There is a fundamental lack of understanding of how the variables in SFE affect those in SFC. In the first study, on-line SFE-SFC-MS/MS was applied for the determination of polycyclic aromatic hydrocarbons (PAHs) in soil. The purpose of this study was to develop and validate the first on-line SFE-SFC-MS/MS method for the quantification of PAHs in various types of soil. Parameters for on-line extraction coupled to chromatographic analysis were optimized. The method was validated for concentrations of 10-1500 ng of PAHs per gram of soil in Certified Reference Material (CRM) sediment, clay, and sand with R2≥0.99. Limits of detection (LOD) were found in the range of 0.001-5 ng/g, and limits of quantification (LOQ) in the range of 5-15 ng/g. The method developed in this study can be effectively applied to the study of PAHs in the environment, and lays the foundation for further applications of on-line SFE-SFC-MS. Typically, a univariate approach is taken in on-line SFE-SFC-MS/MS method development which provides little insight into how the variables work together. In the second study, a multivariate approach was used to develop a better understanding of the synergistic relationship between the extraction and separation processes by focusing on the optimization of extraction parameters for target analytes with a wide range of physicochemical properties in matrices of variable retentivity. Optimal extraction parameters were determined for 18 analytes in three variable sample types. Compromise in optimal extraction parameters must be made when simultaneously extracting and analyzing a significantly wide range of analytes. Detection of drugs of abuse (DoA) in hair; being a convenient and noninvasive technique for the determination of controlled substances, is important in forensics and toxicology. SFE-SFC-MS/MS being ideal for DoA determination in complex matrices, provides a highly specific and sensitive chemical analysis while limiting the need for extensive manual sample preparation. Supercritical fluid extraction of seventeen DoAs from human hair was performed on-line using carbon dioxide (CO2) with 5 mM ammonium formate in methanol. Optimal conditions for simultaneously extracting 17 drugs of abuse were predicted using models developed by response surface methodology. Multivariate analysis was used to optimize extraction parameters, including time (static and dynamic), modifier concentration, flow rate and extraction pressure. It was determined that a compromise between flow rate and concentration was required. Optimal extraction occurred using 15% modifier at 5.00 mL/min for an 8 minute static extraction followed by 15 minutes of dynamic flow at 2 % modifier with a 30 °C extraction vessel temperature and dual backpressures of 10.0 MPa. Significant performance differences were observed between the extraction of standard analytes spiked onto blank hair samples and extraction of a known drug user's hair where the analytes of interest were incorporated into hair growth. The known drug user's hair required multiple extractions to liberate the illicit substance from the complex hair matrix. The amount of analyte extracted during a third round of extractions was observed at double the amount extracted in the first extraction. In samples with spiked on analytes, the amount of extracted analyte decreased with each consecutive extraction. More work is needed to address the matrix effects of drugs incorporated into hair. Most methods developed for hair analysis rely upon spiked samples; however, it appears that a spiked sample versus an incorporated sample may not be comparable. Determining a better method for incorporating standards into hair will provide the basis for an improved extraction and quantification.

Download or read book Handbook of Seafood and Seafood Products Analysis written by Leo M.L. Nollet and published by CRC Press. This book was released on 2009-11-24 with total page 928 pages. Available in PDF, EPUB and Kindle. Book excerpt: Seafood and seafood products represent some of the most important foods in almost all types of societies around the world. More intensive production of fish and shellfish to meet high demand has raised some concerns related to the nutritional and sensory qualities of these cultured fish in comparison to their wild-catch counterparts. In addition, t

Download or read book Comprehensive Foodomics written by and published by Elsevier. This book was released on 2020-11-12 with total page 2444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Foodomics, Three Volume Set offers a definitive collection of over 150 articles that provide researchers with innovative answers to crucial questions relating to food quality, safety and its vital and complex links to our health. Topics covered include transcriptomics, proteomics, metabolomics, genomics, green foodomics, epigenetics and noncoding RNA, food safety, food bioactivity and health, food quality and traceability, data treatment and systems biology. Logically structured into 10 focused sections, each article is authored by world leading scientists who cover the whole breadth of Omics and related technologies, including the latest advances and applications. By bringing all this information together in an easily navigable reference, food scientists and nutritionists in both academia and industry will find it the perfect, modern day compendium for frequent reference. List of sections and Section Editors: Genomics - Olivia McAuliffe, Dept of Food Biosciences, Moorepark, Fermoy, Co. Cork, Ireland Epigenetics & Noncoding RNA - Juan Cui, Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, NE Transcriptomics - Robert Henry, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, Australia Proteomics - Jens Brockmeyer, Institute of Biochemistry and Technical Biochemistry, University Stuttgart, Germany Metabolomics - Philippe Schmitt-Kopplin, Research Unit Analytical BioGeoChemistry, Neuherberg, Germany Omics data treatment, System Biology and Foodomics - Carlos Leon Canseco, Visiting Professor, Biomedical Engineering, Universidad Carlos III de Madrid Green Foodomics - Elena Ibanez, Foodomics Lab, CIAL, CSIC, Madrid, Spain Food safety and Foodomics - Djuro Josic, Professor Medicine (Research) Warren Alpert Medical School, Brown University, Providence, RI, USA & Sandra Kraljevic Pavelic, University of Rijeka, Department of Biotechnology, Rijeka, Croatia Food Quality, Traceability and Foodomics - Daniel Cozzolino, Centre for Nutrition and Food Sciences, The University of Queensland, Queensland, Australia Food Bioactivity, Health and Foodomics - Miguel Herrero, Department of Bioactivity and Food Analysis, Foodomics Lab, CIAL, CSIC, Madrid, Spain Brings all relevant foodomics information together in one place, offering readers a ‘one-stop,’ comprehensive resource for access to a wealth of information Includes articles written by academics and practitioners from various fields and regions Provides an ideal resource for students, researchers and professionals who need to find relevant information quickly and easily Includes content from high quality authors from across the globe

Download or read book Determination of Organic Compounds in Drinking Water by Liquid solid Extraction and Capillary Column Gas Chromatography mass Spectrometry written by and published by . This book was released on 1988 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Supercritical Fluid Extraction Supercritical Fluid Chromatography Mass Spectrometry SFE SFC MS Method Development for Online Extraction of Complex Biological and Environmental Matrices written by Blair Kristen Berger and published by . This book was released on 2022 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic approach to the rapid development of hyphenated online methods for supercritical fluid extraction-supercritical fluid chromatography-mass spectrometry (SFE-SFC-MS) was established for the analysis of complex biological and environmental samples with limited sample sizes. Extensive sample preparation and cleanup is incompatible with small sample sizes. Hyphenated online extractions offer major advantages desirable where sample quantity is limited. By minimizing sample preparation and handling, online extractions provide higher throughput, and minimizes the opportunity for sample contamination or loss. However, hyphenated methods have been difficult to develop since each step has its own requirements, which has slowed penetration into many areas which it should be ideally suited. Recent instrument advances provide new opportunity in online extraction with hyphenated SFE-SFC-MS. The first step involved synergistically optimizing MS-detection, SFC-separation, and SFE extraction. Reference materials and quality controls (QCs) were developed using two separate complex matrices: A micro-dried blood spot (DBS) coring technique for antidoping analysis, and microplastics (μPs) reference materials from cryomilled plastic pellets, for environmental pollutants polycyclic aromatic hydrocarbons (PAHs). A micro-DBS coring technique was established for the for anti-doping analysis was established for direct applicability to with application to androgenic anabolic steroids (AAS) to reflect method validity for evaluation of real/field samples, For DBS: methods were optimized in a stepwise process for the separation and extraction of androgenic anabolic steroids (AAS) were applied to micro-DBS made with human and bovine blood and final method optimizations were performed with focus for Anti-doping analysis. μP Field samples: Pre-optimized methods for the online extraction and separation of environmentally persistent organic pollutants (ePOPs) were applied to marine-exposed μPs and final method optimizations were performed with focus for the targeted analysis of PAHs. The goal was to contribute alternative solutions for blood-based anti-doping testing to current techniques and broaden the accessibility of online SFE-SFC to the scientific community.

Download or read book GB 5009 265 2016 Translated English of Chinese Standard GB5009 265 2016 written by https://www.chinesestandard.net and published by https://www.chinesestandard.net. This book was released on 2018-11-30 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: This standard specifies the liquid chromatography for determining polycyclic aromatic hydrocarbons in food (naphthalene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[]pyrene, indeno[1,2,3-c,d]pyrene, dibenzo[]anthracene and benzo[g,h,i]perylene), as well as the gas chromatography-mass spectrometry for determining the polycyclic aromatic hydrocarbons in foods (naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo[]anthracene, chrysene, benzo[b]fluoranthene, benzo[k]fluoranthene, benzo[]pyrene, indeno[1,2,3-c,d]pyrene, dibenzo[]anthracene and benzo[g,h,i]perylene).

Download or read book Handbook of Food Analysis written by Leo M.L. Nollet and published by CRC Press. This book was released on 2004-06-01 with total page 876 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thoroughly updated to accommodate recent research and state-of-the-art technologies impacting the field, Volume 2: Residues and Other Food Component Analysis of this celebrated 3 volume reference compiles modern methods for the detection of residues in foods from pesticides, herbicides, antibacterials, food packaging, and other sources. Volume 2 ev

Download or read book Safety Analysis of Foods of Animal Origin written by Leo M.L. Nollet and published by CRC Press. This book was released on 2016-04-19 with total page 1002 pages. Available in PDF, EPUB and Kindle. Book excerpt: We cannot control how every chef, packer, and food handler might safeguard or compromise the purity of our food, but thanks to the tools developed through physics and nanotech and the scientific rigor of modern chemistry, food industry and government safety regulators should never need to plead ignorance when it comes to safety assurance. Compiled

Download or read book Advances in Food and Nutrition Research written by Fidel Toldra and published by Academic Press. This book was released on 2020-07-23 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Food and Nutrition Research, Volume 93, provides information on nutrients in foods and how to avoid their deficiency, especially for those essential nutrients that should be present in the diet. Specific topics covered in this new release include drying, a relevant unit operation in the manufacture of foods and nutritional products, polycyclic aromatic hydrocarbons in edible oils and fatty foods, including occurrence, formation, analysis, change, and control, food allergens and their characterization, molecular properties and clinical implications, the design, quality, safety and efficacy of extensively hydrolyzed formula for the management of cow’s milk protein allergy, and much more. The series provides the latest advances on the identification and characterization of emerging bioactive compounds with putative health benefits, as well as up-to-date information on food science, including raw materials, production, processing, distribution and consumption. Contains contributions that have been carefully selected based on their vast experience and expertise on the subject Includes updated, in-depth and critical discussions of available information, giving the reader a unique opportunity to learn Encompasses a broad view of the topics at hand

Download or read book Persistent Organic Pollutants and Toxic Metals in Foods written by Martin Rose and published by Elsevier. This book was released on 2013-05-15 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Persistent organic pollutants (POPs) and toxic elements, such as dioxins, flame retardants, lead and mercury, are substances of major concern for the food industry, the regulator and the public. They persist in the environment, accumulate in food chains and may adversely affect human health if ingested over certain levels or with prolonged exposure. Persistent organic pollutants and toxic metals in foods explores the scientific and regulatory challenges of ensuring that our food is safe to eat. Part one provides an overview of regulatory efforts to screen, monitor and control persistent organic pollutants and heavy metals in foods and includes case studies detailing regulatory responses to food contamination incidents. Part two moves on to highlight particular POPs, toxic metals and metalloids in foods, including dioxins and polychlorinated biphenyls (PCBs), mercury, polycyclic aromatic hydrocarbons (PAHs) and phthalates. Persistent organic pollutants and toxic metals in foods is a standard reference for those in the food industry responsible for food safety, laboratories testing for food chemical safety, regulatory authorities responsible for ensuring the safety of food, and researchers in industry and academia interested in the science supporting food chemical safety. Includes case studies which detail regulatory responses to food contamination incidents Considers the uptake and transfer of persistent organic pollutants in the food chain and the risk assessment of contaminates in food Details perticular persistent organic pollutants, toxic metals and metalloids in foods including polychlorinated biphenyls (PCBs), per- and polyfluoroalkyl substances (PFASs), mercury and arsenic among others

Download or read book Chromatographic Analysis of Environmental and Food Toxicants written by Takayuki Shibamoto and published by CRC Press. This book was released on 2021-05-30 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Shows how to choose the most effective techniques for assessing the toxicity of chemicals in both food and the environment. examines a wide range of volatile compounds from toxic aldehydes and pesticides to micotoxins and dioxins.

Download or read book Toxicological Profile for Polycyclic Aromatic Hydrocarbons written by and published by . This book was released on 1995 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Safety Evaluation of Certain Contaminants in Food written by Joint FAO/WHO Expert Committee on Food Additives. Meeting and published by Food & Agriculture Org.. This book was released on 2006 with total page 788 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ingredients Extraction by Physicochemical Methods in Food written by Alexandru Mihai Grumezescu and published by Academic Press. This book was released on 2017-07-26 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ingredients Extraction by Physico-chemical Methods, Volume Four, the latest release in the Handbook of Food Bioengineering series, reveals the most investigated extraction methods of ingredients and their impact on the food industry. This resource describes types of ingredients that may be extracted through physico-chemical methods (i.e. specific plants, fruits, spices, etc.), along with their particularities to help readers understand their biological effect and solve research problems. The extraction methods of bioactive compounds and functional ingredients are discussed, along with information on green ingredient extraction strategies to help reduce harmful environmental and health effects. Extraction methods in this book can be applied for multiple purposes within the food industry, such as ingredients separation for food development, the purification and separation of toxic compounds from a food mixture, and the recovery of natural bioactive compounds. Offers advanced knowledge and skills of physiochemical analysis for ingredient extraction Presents various methods for food component analysis to evaluate structure function relations in changing environments Discusses the importance of enzymes during processing and storage of foods Includes methods to evaluate and enhance extraction, such as ultrasound, to produce novel foods more efficiently