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Supercritical Fluid Extraction

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Supercritical Fluid Extraction

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Author : Mark McHugh
language : en
Publisher: Elsevier
Release Date : 2013-10-22

Supercritical Fluid Extraction written by Mark McHugh and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.

Supercritical Fluid Extraction is a technique in which CO2 is used under extremely high pressure to separate solution (e.g., removing caffeine from coffee). Separations is basic to all process industries and supercritical fluid extraction is a specific type which is receiving a high level of attention. The book will combine basic fundamentals with industrial applications. The second edition has been expanded and updated and includes new chapters on chromatography and food processing. "...this is an excellent book which is both instructive and amusing to read. Its true value is neatly summarised in one of the closing sentences: 'We have supplied you with the guidelines and criteria which you can now apply when considering supercritical fluids for your own needs.'' - Chemistry in Britain, February 1995

Supercritical Fluid Extraction Of Nutraceuticals And Bioactive Compounds

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Author : Jose L. Martinez
language : en
Publisher: CRC Press
Release Date : 2007-11-28

Supercritical Fluid Extraction Of Nutraceuticals And Bioactive Compounds written by Jose L. Martinez and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-11-28 with Science categories.

Enhanced concern for the quality and safety of food products, increased preference for natural products, and stricter regulations on the residual level of solvents, all contribute to the growing use of supercritical fluid technology as a primary alternative for the extraction, fractionation, and isolation of active ingredients. As a solvent-free p

Analytical Supercritical Fluid Extraction

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Author : Maria D. Luque de Castro
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Analytical Supercritical Fluid Extraction written by Maria D. Luque de Castro and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

Recent advances in analytical chemistry have turned it into a virtually unrecognizable science compared to a few decades ago, when it lagged behind other sciences and techniques. However, advances in analytical science have been far from universal: while innovations in instrumentation and data acquisition and processing systems have reached unprecedented levels thanks to parallel breakthroughs in computer science and chemo metrics, progress in preliminary operations has been much slower despite their importance to analytical results. Thus, such clear trends in analytical process development as automation and miniaturization have not reached preliminary operations to the same extent, even though this area is pro bably in the greatest need. Improvement in preliminary operations is thus an urgent goal of analytical chemistry on the verge of the twenty first century. Increased R&D endeavours and manufacture of commercially available automatic equipment for implementation of the wide variety of operations that separate the uncollected, unmeasured, untreated sample from the signal measuring step are thus crucial on account of the wide variability of such operations, which precludes development of all-purpose equipment, and the complexity of some, particularly relating to solid samples. Supercritical fluid extraction opens up interesting prospects in this context and is no doubt an effective approach to automatioI1 and mini aturization in the preliminary steps of the analytical process. The dramatic developments achieved in its short life are atypical in many respects.

Extraction With Supercritical Gases

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Author : Gerhard M. Schneider
language : en
Publisher: Wiley-VCH
Release Date : 1980

Extraction With Supercritical Gases written by Gerhard M. Schneider and has been published by Wiley-VCH this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Science categories.

Extraction Of Natural Products Using Near Critical Solvents

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Author : M.B. King
language : en
Publisher: Springer Science & Business Media
Release Date : 1992-12-31

Extraction Of Natural Products Using Near Critical Solvents written by M.B. King and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992-12-31 with Science categories.

The aim of this book is to present the current state of the art of extracting natural products with near-critical solvents and to view the possibilities of further extensions of the technique. Relevant background theory is given but does not dominate the book. Carbon dioxide is the near-critical solvent used in most recent applications and inevitably receives prominence. In addition to general descriptions and reviews, the book contains three chapters by indus trial practitioners who describe in detail the operation of their processes and discuss the market for their products. Sections on the design of the pressure vessels and pumps required in these processes and on the acquisition of the data required for design are included. The costing of the processes is also discussed. There is good scope for combining a near-critical extraction step with other process steps in which the properties of near-critical solvents are utilised, for example as a reaction or crystallisation medium and a chapter is devoted to these important aspects. It is hoped that the work will be found to contain a great deal of specific information of use to those already familiar with this field. However the style of presentation and content is such that it will also be useful as an introduction. In particular it will be helpful to those wondering if this form of separation method has anything to offer for them, whether they are engineers, chemists or managers in industry, or in academic or research institutions.

Natural Bioactive Compounds

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Author : Rajeshwar P. Sinha
language : en
Publisher: Academic Press
Release Date : 2020-10-06

Natural Bioactive Compounds written by Rajeshwar P. Sinha and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-06 with Science categories.

Natural Bioactive Compounds: Technological Advancements deals with the latest breakthroughs in the field of screening, characterization and novel applications of natural bioactive compounds from diverse group of organisms ranging from bacteria, viruses, cyanobacteria, algae, fungi, bryophytes, higher plants, sponges, corals and fishes. Written by some of the most reputed scientists in the field, this book introduces the reader to strategies and methods in the search for bioactive natural products. It is an essential read for researchers and students interested in bioactive natural products, their biological and pharmacological properties, their possible use as chemopreventive or chemotherapeutic agents, and other future potential applications. - Explores natural sources of bioactive compounds, including cyanobacteria, bacteria, viruses, fungi and higher plants - Discusses the potential applications of biological products, such as their use in medicine (antibiotics, cancer research, immunology), as food additives, supplements and technological substances - Analyzes the contributions of emerging or developing technologies for the study of bioactive natural compounds (characterization and purification)

New Generation Green Solvents For Separation And Preconcentration Of Organic And Inorganic Species

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Author : Mustafa Soylak
language : en
Publisher: Elsevier
Release Date : 2020-04-07

New Generation Green Solvents For Separation And Preconcentration Of Organic And Inorganic Species written by Mustafa Soylak and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-04-07 with Science categories.

New Generation Green Solvents for Separation and Preconcentration of Organic and Inorganic Species is designed to help researchers and students understand the production and application of new generation green solvents in separation- and preconcentration-based analytical methods. Beginning with the historical background and milestones in the development of analytical instrumentation, the book goes on to give a detailed overview of the most up-to-date uses of green solvents in sample preparation. Using a wealth of examples, it compares old and new extraction procedures and explores the many applications of new generation green solvents. Practical, easy-to-follow experiments are used to illustrate the key concepts. This practical guide helps to promote the use of safer, more sustainable solvents in analytical chemistry and beyond for environmental scientists, researchers in pharmaceutical and biotech industries, and students in analytical chemistry. - Covers the basic analytical theory essential for understanding extraction- and microextraction-based separation and preconcentration methods - Explains combination use of new generation solvents with various detection systems, including UV-VIS, ICP-MS, HPLC, LC-MS, GC-MS, and LC-MS/MS - Emphasizes trace chemical component separation, preconcentration and analysis

Supercritical Fluid Extraction Of Nutraceuticals And Bioactive Compounds

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Author : Jose L. Martinez
language : en
Publisher: CRC Press
Release Date : 2007-11-28

Supercritical Fluids

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Author : Y. Arai
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-07

Supercritical Fluids written by Y. Arai and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-07 with Science categories.

New processing methods govern the progress in physical-chemical technology. The potential of supercritical fluid methods is presented in a comprehensive way in this book. On the basis of a careful discussion of physical and chemical principles, the application of this method in process technology is demonstrated.

Supercritical Fluids

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Author : E. Kiran
language : en
Publisher: Springer
Release Date : 2014-10-09

Supercritical Fluids written by E. Kiran and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-09 with Science categories.

Supercritical fluids which are neither gas nor liquid, but can be compressed gradually from low to high density, are gaining increasing importance as tunable solvents and reaction media in the chemical process industry. By adjusting the pressure, or more strictly the density, the properties of these fluids are customized and manipulated for the particular process at hand, be it a physical transformation, such as separation or solvation, or a chemical transformation, such as a reaction or reactive extraction. Supercritical fluids, however, differ from both gases and liquids in many respects. In order to properly understand and describe their properties, it is necessary to know the implications of their nearness to criticality, to be aware of the complex types of phase separation (including solid phases) that occur when the components of the fluid mixture are very different from each other, and to develop theories that can cope with the large differences in molecular size and shape of the supercritical solvent and the solutes that are present.

Supercritical Fluid Extraction

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