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It is clearly demonstrated that significant progress has been made during the past seven years.
A fundamental understanding of polymers has evolved in recent years concurrent with advances in analytical instrumentation. The theories and methodologies developed for the galacturonan biopolymers (collectively called pectins) have seldom been discoursed comprehensively in the context of the new knowledge. This text explains the scientific and technical basis of many of the practices followed in processing and preparing foods fabricated with or containing pectin. The material is presented in a very readable fashion for those with limited technical training. - Structural analysis - Commercial extractions methods - Pectin formulations and tropical fruit analysis - Molecular mechanisms of gelatin - Enzymology - Polymer comformation techniques - Analytical methods of polymer analysis
The book describes the new advances in the science and technology of hydrocolloids which are used in food and related systems. The focus is on the technofunctionality and the biofunctionality of hydrocolloids, giving an appropriate emphasis to the manipulative skills of the food scientist and recognising the special part hydrocolloids can play in supporting human health. Gums and Stabilisers for the Food Industry 17 captures the latest research findings of leading scientists which were presented at the Gums and Stabilisers for the Food Industry Conference. Covering a wide range of topics, including; functional properties of proteins, alternative protein surces, low moisture foods, value added co-products from biorefining and bioactive polysaccharides. This book is a useful information source to researchers and other professionals in industry and academia, particularly those involved with food science.
This book deepens the study and knowledge on pectins, especially in the processes of extraction, purification, and characterization, in short its many and wide applications. Among the most prominent applications are the food, pharmaceutical, and other industries. The development of pectins has a very promising future with a marked annual increase and with a wide range of sources. As written above, this book will help its readers to expand their knowledge on this biopolymer with vast application in the industry worldwide.
Pectins are one of the classes of complex structural plant cell wall polysaccharides. They are localized in the middle lamella and primary cell wall of higher plants. Pectins have a long-standing use as gelling agents whereas their enzymatic degradation or modification plays an important role in the processing of agricultural crops and the manufacturing of foods and beverages. Progress in pectin and pectinase research has been most prominent in two areas over the past 5 years. The first one concerns the analysis and elucidation of the complex chemical structure of pectin and identification of novel enzymes involved in the degradation of these structures. The second area concerns the mode of action and the 3-dimensional structure of various pectin degrading enzymes as well as the cloning of a large number of genes encoding enzymes involved in pectin degradation and modification. This book covers the following topics. First the structural, physical and chemical properties of pectin are treated followed by information about its biosynthesis and about the biological effects of pectin and its degradation products in biological systems such as plant-pathogen interactions and human nutrition. Identification of novel enzymes, the mode of action of different pectinases and the 3-D structure of bacterial pectate lyases forms the second block. This is followed by the genetics and regulation of pectinase biosynthesis in saprophytic and phytopathogenic microbial systems as well as in plant systems. Finally, developments in pectin manufacturing and application of pectinases in traditional (food, beverage) and novel technologies are treated. This book is meant for those actively involved in fundamental and applied aspects of pectin and pectinase research but it is also of value for those interested in plant cell wall biosynthesis and architecture, phytopathology, food technology and human nutrition. This book not only reflects the present status of research in the field but it will turn out to be a very useful reference work as well.
​This text presents the technological and physiological properties of pectin in an educational approach that encompasses all of the essential information a researcher needs to fully understand their function and use in foods. Utilizing basic information on pectin as well as recent technological advances, this book is designed to be the primary resource for individuals seeking out an up to date reference work covering all the necessary informational and functional aspects of pectin. Pectin: technological and physiological properties is the first book to fully focus on the introductory concepts on pectin. Individual chapters cover localization and function, the structural aspects of pectin, pectinases, isolation and characterization and recovery from agricultural wastes. Important current advances such as emulsions, films, digestion, metabolism and bioactive properties are also focused on. With its combination of vital basic information and technological advances, this book presents full and up to date coverage on this pectin and its many forms and uses in foods.
The second international symposium on Pectins and Pectinases was organised by Wageningen University and Research Centre and was held in Rotterdam, May 6-10, 2001. This fruitful meeting was attended by around 130 participants from more than 20 countries, representing almost all of the groups/industries working worldwide on pectins and pectinases. Following the first meeting on this subject held in December 1995, the symposium definitely forms a platform for researchers and industries working in the field, all within their own discipline and expertise. The symposium book contains most keynote lectures and other oral presentations and provides an update about the current research. It is clearly demonstrated that significant progress has been made during the past seven years. The progress in the elucidation of the chemical structure of pectin and mode of action and 3-D structure of the pectin-degrading enzymes allows us more and more to identify (and influence) the functionality of pectins and pectic enzymes, both in vitro after isolation as well as in the plants themselves (in planta). Other contributions deal with new applications of both pectin and pectin-degrading enzymes, while more and more attention is paid to health and nutritional aspects of pectins.
Nanosensors for Smart Cities covers the fundamental design concepts and emerging applications of nanosensors for the creation of smart city infrastructures. Examples of major applications include logistics management, where nanosensors could be used in active transport tracking devices for smart tracking and tracing, and in agri-food productions, where nanosensors are used in nanochips for identity, and food inspection, and smart storage. This book is essential reading for researchers working in the field of advanced sensors technology, smart city technology and nanotechnology, and stakeholders involved in city management. Nanomaterials based sensors (nanosensors) can offer many advantages over their microcounterparts, including lower power consumption, high sensitivity, lower concentration of analytes, and smaller interaction distance between object and sensor. With the support of artificial intelligence (AI) tools, such as fuzzy logic, genetic algorithms, neural networks, and ambient-intelligence, sensor systems are becoming smarter. - Provides information on the fabrication and fundamental design concepts of nanosensors for intelligent systems - Explores how nanosensors are being used to better monitor and maintain infrastructure services, including street lighting, traffic management and pollution control - Assesses the challenges for creating nanomaterials-enhanced sensors for mass-market consumer products
Pectins are biopolymers with multiple applications because of their structural diversity and complexity. Although pectins from different sources have some common structural characteristics, many aspects of the common structure change according to the species and the physiological stage of the plant. Moreover, the application of pectin is determined by its chemical features, including galacturonic acid content, methoxyl content, degree of esterification and acetyl value. The most traditional raw materials used for the extraction of pectins are either apple pomace or citrus peels that are supplied as by-products of juice production. Both materials contain significant amounts of pectic substances, but with different chemical characteristics that make them suitable for specific applications. Considering that pectin is widely used as a functional ingredient, many researchers have been testing the use of other materials and alternative methods of extraction for industrial exploitation. This book discusses the chemical properties of pectin. It addition, it includes the uses and health benefits that pectin may have.