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Author : Thomas Richardson
ISBN : 0870555049
Genre : Technology & Engineering
File Size : 41.20 MB
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This volume results from the Eighth Basic Symposium held by the Institute of Food Technologists in Anaheim, California on June 8-9, 1984. The theme of the symposium was "Chemical Changes in Food during Processing." The speakers included a mix of individuals from academic institu tions, governmental agencies, and the food industry. Twenty speakers discussed topics ranging from the basic chemistry relating to food constituents to the more applied aspects of chemical changes in food components during food processing. It was the intent of the organizers to bring together a group of speakers who could address the chemistry of changes in food compo nents during processing from a mechanistic point of view. As a con sequence, the proceedings of this symposium emphasize the basic chemistry of changes in food constituents from a generic perspective which is intended to provide the reader with a background to address more specific problems that may arise.
Chemical changes that occur in foods during processing and storage are manifold and might be both desirable and undesirable in nature. While many of the processes are carried out intentionally, there are also certain unwanted changes that naturally occur in food and might have to be controlled. Therefore, efforts are made to devise processing technologies in which desirable attributes of foods are retained and their deleterious ef fects are minimized. While proteins, lipids and carbohydrates are the main nutrients of food that are affected by processing, it is their interaction with one another, as well as in volvement oflow-molecular-weight constituents that affects their flavor, color and overall acceptability. Thus, generation of aroma via thermal processing and bioconversion is of utmost importance in food preparation. Furthermore, processing operations must be opti mized in order to eliminate or reduce the content of antinutrients that are present in foods and retain their bioactive components. Therefore, while novel processing technologies such as freezing, irradiation, microwaving, high pressure treatment and fermentation might be employed, control process conditions in a manner that both the desirable sensory attributes and wholesomeness of foods are safeguarded is essential. Obviously, method ologies should also be established to quantitate the changes that occur in foods as a result of processing. This volume was developed from contributions provided by a group of internation ally-recognized lead scientists.
Author : Edward P. Ortleb
ISBN : 9780787782955
Genre : Science
File Size : 30.97 MB
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This book presents a program of basic studies in physical and chemical changes of matter. The definition of matter is presented along with explanations of states and properties of matter. Topics include atoms, molecules, elements, compounds, mixtures, solutions, symbols, and formulas. Each of the twelve teaching units in this book is introduced by a color transparency (print books) or PowerPoint slide (eBooks) that emphasizes the basic concept of the unit and presents questions for discussion. Reproducible student pages provide reinforcement and follow-up activities. The teaching guide offers descriptions of the basic concepts to be presented, background information, suggestions for enrichment activities, and a complete answer key.
Author : Darlene R. Stille
ISBN : 0756517176
Genre : Juvenile Nonfiction
File Size : 31.49 MB
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Explains how matter creates new substances through processes including explosion, oxidation, and digestion, and discusses the social significance and history of modern chemical industry.
Specials! are a teaching resource designed for KS3 students, whose literacy skills are considerably lower than their age. These books have an 'older format' to counteract the simple text, and cover various topics. They include activities, visuals, and assessment sheets, as well as teacher pages.
Author : Brian Bayly
ISBN : 0195361881
Genre : Science
File Size : 58.63 MB
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This book is the first to detail the chemical changes that occur in deforming materials subjected to unequal compressions. While thermodynamics provides, at the macroscopic level, an excellent means of understanding and predicting the behavior of materials in equilibrium and non-equilibrium states, much less is understood about nonhydrostatic stress and interdiffusion at the chemical level. Little is known, for example, about the chemistry of a state resulting from a cylinder of deforming material being more strongly compressed along its length than radially, a state of non-equilibrium that remains no matter how ideal the cylinder's condition in other respects. M. Brian Bayly here provides the outline of a comprehensive approach to gaining a simplified and unified understanding of such phenomena. The author's perspective differs from those commonly found in the technical literature in that he emphasizes two little-used equations that allow for a description and clarification of viscous deformation at the chemical level. Written at a level that will be accessible to many non-specialists, this book requires only a fundamental understanding of elementary mathematics, the nonhydrostatic stress state, and chemical potential. Geochemists, petrologists, structural geologists, and materials scientists will find Chemical Change in Deforming Materials interesting and useful.
Author : David Arthur Johnson
ISBN : 0854046658
Genre : Science
File Size : 32.23 MB
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This book looks at how molecules react, and how the feasibility and outcome of chemical reactions can be predicted. Beginning with an introduction to the concept of an activity series of metals, Metals and Chemical Change then introduces chemical thermodynamics (enthalpy, entropy and free energy) and applies the concept to both inorganic and organic elements. A Case Study on batteries and fuel cells is also included. The accompanying CD-ROM includes video sequences of the reactions of metals with water, acid and aqueous ions, and gives the reader an opportunity to make experimental observations and predictions about chemical behaviour. A comprehensive Data Book of chemical and physical constants is included, along with a set of interactive self-assessment questions. The Molecular World series provides an integrated introduction to all branches of chemistry for both students wishing to specialise and those wishing to gain a broad understanding of chemistry and its relevance to the everyday world and to other areas of science. The books, with their Case Studies and accompanying multi-media interactive CD-ROMs, will also provide valuable resource material for teachers and lecturers. (The CD-ROMs are designed for use on a PC running Windows 95, 98, ME or 2000.)
Describes different types of reactions, including acid-base reactions and oxidation; presents potential uses for chemical reactions; and gives an overview of the building blocks of elements and compounds.
Author : Martin Wenham
ISBN : 1412901634
Genre : Education
File Size : 34.61 MB
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This new edition provides even more of the background knowledge that teachers need in order to plan effective programs and answer children’s questions with confidence.
Author : Kristi Lew
ISBN : 9781438102351
Genre : Chemical reaction, Conditions and laws of
File Size : 38.90 MB
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Reaching beyond the typical high school chemistry textbook, each title in this series offers real-life, concrete examples that illustrate the practical importance of the topic at hand, and includes a full-color periodic table, color photographs, sidebars, and a glossary.
Author : Richard Spilsbury
ISBN : 9781406261073
Genre : Chemical industry
File Size : 51.5 MB
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The calm of the night is shattered by an explosion and flames: a chemical factory is on fire, and a dangerous gas is drifting across town! This book looks at the topic of chemical reactions to explain the properties of chemicals and how they react, what has caused the explosion, and how the resulting fire and pollution can be tackled. It shows how the emergency services use their knowledge of science and technology to make the factory safe, and how investigators can analyse the evidence to determine the cause of the disaster.
Author : Gennadiĭ Efremovich Zaikov
ISBN : 1600210945
Genre : Science
File Size : 78.57 MB
Format : PDF
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This book includes reviews on the ozone influence on natural and synthetic rubbers, interactions between micro-organisms and polymers, chitosan (natural polysaccharide) oxidation, nano-phases and kinetic model of chain reactions of polypropylene with peroxides, heat stability of vinylchloride polymers subjected intensive force influences of the pressure with shear type, bio-damages of materials and adhesion of micro-organisms on materials surface, intensification of dust removal process, stationary kinetics of the linear polymerisation till the high conversions, stationary kinetics of 3D polymerisation till the high conversions, and the study of the grossing process in the grosses of fluted type.
