Natural Extracts Using Supercritical Carbon Dioxide

Author: Mamata Mukhopadhyay
Publisher: CRC Press
ISBN: 9781420041699
Format: PDF, ePub
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Synthesizing research from a wide variety of sources, this work offers a convenient guide to a clean, safe, inexpensive, non-toxic, non-polluting solvent that performs better than most conventional solvents. Natural Extracts Using Supercritical Carbon Dioxide reviews recent development in the technology and its applications to the food, flavor, fragrance, and pharmaceutical industries. It outlines the many advantages the method has over traditional methods like steam distillation, solvent extraction, and molecular distillation and it supports the popular trend toward the use of natural products in these industries.

Supercritical Fluid Extraction of Nutraceuticals and Bioactive Compounds

Author: Jose L. Martinez
Publisher: CRC Press
ISBN: 9781420006513
Format: PDF
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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 process, supercritical fluid technology is a popular answer for the functional foods and nutraceutical sector, one of the fastest growing consumer driven markets. Recent advancements in the technology and increased utilization of the process demand a comprehensive, single-source review of current and future trends in supercritical fluid technology. Compiling contributions from international experts in the field, Supercritical Fluid Extraction of Nutraceuticals and Bioactive Compounds presents the state-of-the-science in the extraction and fractionation of bioactive ingredients by supercritical fluids. Focusing on implemented industrial processes and trends, it reviews the fundamentals of the technology and examines the economics of supercritical fluid extraction systems and processes. Over the course of twelve chapters, the book presents the supercritical fluid extraction processes in edible oils, including fish oils and specialty oils; herbs, such as Latin American plants and those used in Traditional Chinese Medicine; algae; spices; antioxidants and essential oils; as well as the processing of micro and nano-scale materials by supercritical fluid technology. Each chapter covers the major active components in the target material, including chemical, physical, nutritional, and pharmaceutical properties; an analysis of the specific supercritical fluid process used; a comparison of traditional processing methods versus supercritical fluid technology; and a set of conclusions with supporting data and insight.

Solubility in Supercritical Carbon Dioxide

Author: Ram B. Gupta
Publisher: CRC Press
ISBN: 1420005995
Format: PDF, Kindle
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Supercritical fluid extraction is an environmentally safe and cost-effective alternative to traditional organic solvents. Carbon dioxide is widely used as the solvent of choice for applications such as caffeine and nicotine extraction due to its mild critical temperature, nontoxicity, nonflammability, and low cost. Introducing the most complete collection of supercritical CO2 solubility data currently available, Solubility in Supercritical Carbon Dioxide features experimental data on more than 780 solutes in consistent units and an easily accessible format. This book reflects the authors’ painstaking efforts to compile solubility data for an extensive variety of compounds including liquids, solids, polymers, foods, drugs, nutraceuticals, pesticides, dyes, and metal complexes. Each of the more than 1200 tables is arranged in alphabetical order by compound, includes a graphical plot of its data, and features the following information: Compound name, molecular formula, and molecular weight Temperature and pressure given in Kelvin and bar, respectively Name and amount of cosolvent, if applicable Molar or mass solubility, when applicable Mole- or mass-fraction solubility Synonyms for the compound, where available Reference source for the data Density data for CO2 appears in one appendix, while a complete list of solutes by molecular formula appears in the other. Clear, consistent, and carefully organized, Solubility in Supercritical Carbon Dioxide is the most convenient quick-lookup guide for reliable data.

Thermische Trennverfahren

Author: Klaus Sattler
Publisher: John Wiley & Sons
ISBN: 3527691790
Format: PDF, Mobi
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Thermische Trennverfahren verursachen bei der Herstellung von Produkten und Verbrauchsgütern in verfahrenstechnischen Produktionsanlagen häufig den größten Teil der Investitions- und Betriebskosten des Gesamtverfahrens - ihre optimale Gestaltung ist deshalb von größer wirtschaftlicher Bedeutung. Anhand von über 80 Aufgaben und Auslegungsbeispielen hilft das Buch, praxisrelevante Vorgehensweisen im industriellen Umfeld zu verstehen. Die Schritt für Schritt abgehandelten Beispiele reichen von der Aufgabenstellung am Beginn eines Projektes über die thermodynamische Auslegung bis hin zur fluiddynamischen Dimensionierung der Apparate. Zur Lösung der Aufgaben kommen neben den didaktisch wertvollen 'Papier- und Bleistiftmethoden' auch moderne Prozesssimulations-Werkzeuge und praxisgängige Programme zur Apparatedimensionierung zum Einsatz. Der Leser gewinnt ein Gefühl dafür, an welchen Stellen überschlägige Rechnungen sinnvoll sind und bei welchen Problemen eine rigorosere Betrachtung notwendig ist. Die optimale Auslegung eines Verfahrens in einem gesamtwirtschaftlichen Zusammenhang - das Fundament jeder unternehmerischen Entscheidung - kann im Rahmen von Parameterstudien mit Tabellenkalkulationsblättern (EXCEL) online geübt werden, auch wenn dem Leser kein Prozesssimulationswerkzeug zur Verfügung steht. Das Buch nimmt auch Bezug auf die Software WINSORP der RASCHIG GmbH, mit der beispielsweise die fluiddynamische Auslegung von Packungs- und Füllkörperkolonnen für Absorption- und Rektifikationsprozesse möglich ist. WINSORP ist auf Anfrage kostenfrei bei der Firma RASCHIG GmbH erhältlich. Die gewählte vernetzte Darstellung von Arbeitsabläufen zeigt Studierenden und im Berufsleben stehenden Ingenieuren, Chemikern und Physiker in der Verfahrens-, Bioverfahrens- und Lebensmitteltechnik, im Chemieingenieurwesen, Umweltschutz, Anlagen- und Apparatebau den Realfall der industriellen Praxis.

Handbook of Industrial Drying Fourth Edition

Author: Arun S. Mujumdar
Publisher: CRC Press
ISBN: 1466596651
Format: PDF, Docs
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By far the most commonly encountered and energy-intensive unit operation in almost all industrial sectors, industrial drying continues to attract the interest of scientists, researchers, and engineers. The Handbook of Industrial Drying, Fourth Edition not only delivers a comprehensive treatment of the current state of the art, but also serves as a consultative reference for streamlining industrial drying operations. New to the Fourth Edition: Computational fluid dynamic simulation Solar, impingement, and pulse combustion drying Drying of fruits, vegetables, sugar, biomass, and coal Physicochemical aspects of sludge drying Life-cycle assessment of drying systems Covering commonly encountered dryers as well as innovative dryers with future potential, the Handbook of Industrial Drying, Fourth Edition not only details the latest developments in the field, but also explains how improvements in dryer design and operation can increase energy efficiency and cost-effectiveness.

Conventional and Advanced Food Processing Technologies

Author: Suvendu Bhattacharya
Publisher: John Wiley & Sons
ISBN: 1118406303
Format: PDF, ePub
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Food processing technologies are an essential link in the food chain. These technologies are many and varied, changing in popularity with changing consumption patterns and product popularity. Newer process technologies are also being evolved to provide the added advantages. Conventional and Advanced Food Processing Technologies fuses the practical (application, machinery), theoretical (model, equation) and cutting-edge (recent trends), making it ideal for industrial, academic and reference use. It consists of two sections, one covering conventional or well-established existing processes and the other covering emerging or novel process technologies that are expected to be employed in the near future for the processing of foods in the commercial sector. All are examined in great detail, considering their current and future applications with added examples and the very latest data. Conventional and Advanced Food Processing Technologies is a comprehensive treatment of the current state of knowledge on food processing technology. In its extensive coverage, and the selection of reputed research scientists who have contributed to each topic, this book will be a definitive text in this field for students, food professionals and researchers.