Download or read book Enzymatic Synthesis of Structured Triglycerides written by María Luján Ferreira and published by Springer. This book was released on 2017-02-28 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brief presents the state of the art on enzymatic synthesis of structured triglycerides and diglycerides, focusing on glycerol as the substrate and covering interesterification of vegetable oils in one and two steps. It critically reviews the available literature on enzymatic and chemo-enzymatic synthesis of di- and triglycerides in one or more steps. The effects of the structure, length and unsaturation of the fatty acids are carefully considered, as well as the inhibitory potential of highly unsaturated complex fatty acid structures. The brief also addresses acyl migration and the use of adsorbents, taking into account the most recent literature and presenting the problem in an industrial context. It discusses experimental and analytical problems concerning, e.g. the lab scale and the scaling up to bench and pilot plants. Several examples are presented, and their successes and failures are assessed. Biocatalysts based on lipases are analyzed with regard to problems of immobilization, stability on storage time and activity after multiple uses. The need for specific Sn-2 lipases is presented and strategies for optimizing Sn-2 esterification are discussed. Lastly, practical aspects are examined, e.g. lipase “leaching” with loss of activity, taking into account the latest findings on continuous and batch reactor configurations and presenting the advantages and disadvantages of each.
Download or read book Structural Modified Food Fats written by Armond B. Christophe and published by The American Oil Chemists Society. This book was released on 1998-08-30 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on fats which have recently been synthesized and which are currently used in diseased states or have potential for clinical nutrition such as partial glycerides, structural lipids, salatrims, and triglycerides with specified fatty acid combinations or enriched in specific fatty foods. Chapters address technological aspects of fat modification, the synthesis of foods with specific nutritional properties, aspects of the metabolism of structural modified lipids, and the effect of fat structure on lipemia and lipoproteinemia. Annotation copyrighted by Book News, Inc., Portland, OR
Download or read book Food Components to Enhance Performance written by Institute of Medicine and published by National Academies Press. This book was released on 1994-02-01 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: The physiological or psychological stresses that employees bring to their workplace affect not only their own performance but that of their co-workers and others. These stresses are often compounded by those of the job itself. Medical personnel, firefighters, police, and military personnel in combat settingsâ€"among othersâ€"experience highly unpredictable timing and types of stressors. This book reviews and comments on the performance-enhancing potential of specific food components. It reflects the views of military and non-military scientists from such fields as neuroscience, nutrition, physiology, various medical specialties, and performance psychology on the most up-to-date research available on physical and mental performance enhancement in stressful conditions. Although placed within the context of military tasks, the volume will have wide-reaching implications for individuals in any job setting.
Download or read book Glycerine Production and Transformation written by Marco Frediani and published by BoD – Books on Demand. This book was released on 2019-09-11 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The increase in the amount of glycerin in the market is a burden for all producers, especially those operating in the biodiesel sector: reuse options are in fact limited for the management of this by-product. Glycerol enhancement has therefore become a priority to improve the sustainability of the biodiesel industry. Nevertheless, the multifunctionality of glycerol makes it a promising precursor for different types of production (fuel/biofuel, chemical products). This conversion has therefore become a subject of multifaceted research that requires an exchange of knowledge across many sectors. In this book, different disciplines (chemistry, biology, engineering, etc.) have been taken into consideration to propose an interdisciplinary point of view on different aspects.
Download or read book Enzymes in Lipid Modification written by Uwe Theo Bornscheuer and published by Wiley-Blackwell. This book was released on 2000-09-13 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzymatic methods of lipid modification, particularly of fats and oils, have developed rapidly since the 1980s. In parallel to the rapid progress in research a wide range of applications have emerged, e.g. in the food industry. The book is written by leading experts in the field and reflects the state-of-the-art of enzymatic lipid modification. It provides the reader with guidelines how to select suitable enzymes and how to apply them efficiently. Applications of lipases and phospholipases, lipoxygenases and P450-monooxygenases and the use of whole-cell systems in lipid modification are described. Cloning, expression and mutagenesis as well as attempts to understand the molecular basis of specificity and stereoselectivity are outlined. In addition engineering aspects and the choice of solvent systems are addressed.
Download or read book Fat Detection written by Jean-Pierre Montmayeur and published by CRC Press. This book was released on 2009-09-14 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the State-of-the-Art in Fat Taste TransductionA bite of cheese, a few potato chips, a delectable piece of bacon - a small taste of high-fat foods often draws you back for more. But why are fatty foods so appealing? Why do we crave them? Fat Detection: Taste, Texture, and Post Ingestive Effects covers the many factors responsible for the se
Download or read book Fats in Food Products written by D. P. Moran and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of fats and the characteristics of some food products based on fats have been documented in several books. Individual fats such as milkfat, however, have received less attention despite many successful initiatives to increase their utilization in food products. Moreover, the availability of data on the function of fats in the context of major manufactured food products has often been constrained by the general reluctance of manufacturers to disclose details of working practices. In some areas, such as yellow fat spreads, the market has changed dramatically over the last decade or so by the introduction of a broad class of new products resulting from a trend among consumers in the developed world towards reduced fat consumption. A review of this general area therefore now seems very timely. In the preparation of this book, we have been fortunate to have had the support of internationally recognised specialists with much relevant experience and achievement in their subject areas. We believe that their contributions not only subscribe to the main aim of this book, by providing useful insight into the functional properties of the major fats in foods, but also offer information concerning recent and novel methods of processing these fats. Opportunities for possible future developments are indicated throughout.
Download or read book Lipids and Lipid Polymers in Higher Plants written by M. Tevini and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a number of papers dealing with the main topics of a Symposium on "Lipids and Lipid Polymers in Higher Plants", held in July 1976 at the Botanical Institute of the University of Karlsruhe. The symposium was organized by Professors E. Heinz, H.K. Lichtenthaler, H.K. Mangold, and M. Tevini. The sponsorship by the Deutsche Forschungsgemeinschaft and the Erwin-Riesch-Stiftung is gratefully acknowledged. The intention of the Symposium was to bring together in one place scientists working in very different fields of plant lipids, such as fatty acids, glycolipids, phospholipids, prenyllipids, sterols, and lipid polymers. The emphasis was placed on biosynthesis, distribution, function, and physiology of the various higher plant lipids and their role in biomembranes and epidermal cell walls. By combining the major contributions in this book, we hope to give all plant scientists access to the recent developments in biochemistry and physiology of plant lipid metabolism. The editors are very grateful to the contributors, who have taken great care to present up-to-date reviews. Karlsruhe, May 1977 M. TEVINI H.K. LICHTENTHALER Contents Section 1. Function, Organization and Lipid Composition of Biomembranes Chapter 1. Functional Organization of Biomembranes P. SITTE (With 15 Figures) A. Introduction. . . . . 1 B. Membrane Functions . 2 I. Membrane Diversity 2 II. Membranes as Barriers 4 III. Lipids and Permeability . 5 IV. Specific Transport . . . 8 V. Membrane Flow and Membrane Families 9 VI. General Principles of Cellular Compartmentation 10 C. Membrane Biogenesis. . . . . . . . . . . . .
Download or read book Lipases and Phospholipases written by Georgina Sandoval and published by Humana. This book was released on 2019-12-10 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides an essential update on fundamental issues, current and new applications, as well as practical protocols to explore the extensive applications of lipases and the potential application of phospholipases. After an overview, the book delves into activity screening and expression, optimization of the biocatalyst production and performances, and applications of lipases, phospholipases, and esterases. Written for the highly successful Methods in Molecular Biology series, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Authoritative and accessible, Lipases and Phospholipases: Methods and Protocols, Second Editionserves as an updated reference book for the large scientific community, both seasoned and novice, working with lipases, phospholipases, and related enzymes.
Download or read book Diet and Health written by National Research Council and published by National Academies Press. This book was released on 1989-01-01 with total page 765 pages. Available in PDF, EPUB and Kindle. Book excerpt: Diet and Health examines the many complex issues concerning diet and its role in increasing or decreasing the risk of chronic disease. It proposes dietary recommendations for reducing the risk of the major diseases and causes of death today: atherosclerotic cardiovascular diseases (including heart attack and stroke), cancer, high blood pressure, obesity, osteoporosis, diabetes mellitus, liver disease, and dental caries.
Download or read book Catalysis for Renewables written by Gabriele Centi and published by John Wiley & Sons. This book was released on 2008-01-08 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its focus on catalysis and addressing two very hot and timely topics with significant implications for our future lives, this will be a white book in the field. The authority behind this practical work is the IDECAT Network of Excellence, and the authors here outline how the use of catalysis will promote the more extensive use of renewable feedstocks in chemical and energy production. They present the latest applications, their applicability and results, making this a ready reference for researchers and engineers working in catalysis, chemistry, and industrial processes wishing to analyze options, outlooks and opportunities in the field.
Download or read book Fat Absorption written by Arnis Kuksis and published by CRC Press. This book was released on 2018-01-18 with total page 582 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an authoritative and comprehensive source of information on the biochemical an metabolic aspects of digestion and absorption of different dietary fats and other lipids, with minimal discussion of the physical chemistry of the process, which has been covered in great detail in previous reviews. It is intended for both researchers and practitioners in the biomedical field who require detailed knowledge of the biomedical and metabolic transformations involed in the intestinal digestion and resynthesis of dietary fats and other lipids.
Download or read book Physiology and Physiopathology of Adipose Tissue written by Jean-Philippe Bastard and published by Springer Science & Business Media. This book was released on 2012-11-28 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The scientific advances in the physiology and pathophysiology of adipose tissue over the last two decades have been considerable. Today, the cellular and molecular mechanisms of adipogenesis are well known. In addition, adipose tissue is now recognized as a real endocrine organ that produces hormones such as the leptin acting to regulate food intake and energy balance in the central nervous system, a finding that has completely revolutionized the paradigm of energy homeostasis. Other adipokines have now been described and these molecules are taking on increasing importance in physiology and pathophysiology. Moreover, numerous works have shown that in obesity, but also in cases of lipodystophy, adipose tissue was the site of a local low-grade inflammation that involves immune cells such as macrophages and certain populations of lymphocytes. This new information is an important step in the pathophysiology of both obesity and related metabolic and cardiovascular complications. Finally, it is a unique and original work focusing on adipose tissue, covering biology and pathology by investigating aspects of molecular and cellular biology, general, metabolic, genetic and genomic biochemistry.
Download or read book Anatomy and Physiology written by J. Gordon Betts and published by . This book was released on 2013-04-25 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Intestinal Lipid Metabolism written by Charles M. Mansbach II and published by Springer Science & Business Media. This book was released on 2011-06-28 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was stimulated by the enthusiasm shown by attendees at the meetings in Saxon River, VT, sponsored by the Federation ofAmerican Societies for Experimental Biology (FASEB), on the subject of the intestinal processing of lipids. When these meetings were first started in 1990, the original organizers, two of whom are editors ofthis volume (CMM and PT), had two major goals. The first was to bring together a diverse group ofinvestiga tors who had the common goal of gaining a better understanding of how the intestine ab sorbs lipids. The second was to stimulate the interest of younger individuals whom we wished to recruit into what we believed was an exciting and fruitful area ofresearch. Since that time, the field has opened up considerably with new questions being asked and new an swers obtained, suggesting that our original goals for the meetings were being met. In the same spirit, it occurred to us that there has not been a recentbook that draws to gethermuch ofthe informationavailableconcerninghow the intestineprocesses lipids. This book is intended to reach investigators with an interest in this area and their pre- and post doctoral students. The chapters are written by individuals who have a long-term interest in the areas about which they write, and many have been speakers at the subsequent FASEB conferences that have followed on the first.
Download or read book Lipids and Skin Health written by Apostolos Pappas and published by Springer. This book was released on 2014-12-15 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lipids and Skin Health is the first effort to summarize and review the studies, ideas, and research that link lipid metabolism to the largest organ of our body, the skin. The book covers the fundamental biology of the skin, and the major involvement of the transcriptional factors that govern lipid synthesis and the bioactive lipids in this intriguing organ. All layers of skin are presented, as well as their relevant lipids from the epidermis to dermis and even to the hypodermis. The important and unique-to-skin biological pathways are laid out, with a special focus on the various models that demonstrate the essential role of lipid synthesis in skin pathophysiology. The use of lipids in the cosmetic industry is emphasized, and last but not least the involvement of lipids in the clinical setting is also discussed. This book will appeal to healthcare professionals, researchers and dermatology professionals, and will help them to brainstorm new products and opportunities that will target the emerging importance of lipid metabolism in skin for acne, aging, and healthy skin. Apostolos Pappas, Ph.D., is a professional member of the Institute of Food Technology. He started his professional career as a research biochemist in the Skin Research Center of Johnson & Johnson and later served as a group leader at Munich Biotech, where he worked on cancer research. Thereafter he returned to Johnson & Johnson, where he is currently a Research Manager and Fellow focusing on lipid metabolism research. He has authored numerous scientific publications, patent applications, and books.
Download or read book Enzymes in Nonaqueous Solvents written by Evgeny N. Vulfson and published by Springer Science & Business Media. This book was released on 2008-02-05 with total page 677 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enzymatic catalysis has gained considerable attention in recent years as an efficient tool in the preparation of natural products, pharmaceuticals, fine chemicals, and food ingredients. The high selectivity and mild reaction con- tions associated with enzymatic transformations have made this approach an attractive alternative in the synthesis of complex bioactive compounds, which are often difficult to obtain by standard chemical routes. However, the maj- ity of organic compounds are not very soluble in water, which was traditi- ally perceived as the only suitable reaction medium for the application of biocatalysts. The realization that most enzymes can function perfectly well under nearly anhydrous conditions and, in addition, display a number of useful properties, e. g. , highly enhanced stability and different selectivity, has d- matically widened the scope of their application to the organic synthesis. Another great attraction of using organic solvents rather than water as a reaction solvent is the ability to perform synthetic transformations with re- tively inexpensive hydrolytic enzymes. It is worth reminding the reader that in vivo, the synthetic and hydrolytic pathways are catalyzed by different enzymes. However, elimination of water from the reaction mixture enables the “reversal” of hydrolytic enzymes and thus avoids the use of the expensive cofactors or activated substrates that are required for their synthetic count- parts.
