Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonates
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Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonates
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Author : A. G. J. Voragen
language : en
Publisher: Bernan Press(PA)
Release Date : 1972
Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonates written by A. G. J. Voragen and has been published by Bernan Press(PA) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Cooking categories.
Pectin lyases (EC 4.2.99.8; poly-α-1,4-D-methyl-galacturonate lyase) were found to be very common in commercial 'pectinase' preparations. From each of three 'pectinase' preparations a pectin lyase was isolated free of other pectolytic enzymes. Their pH optimum, pH stability, isoelectric point and activation energy were determined. Information on the action of the enzymes on pectins with various degrees of esterification ( DE ) was obtained by kinetic studies, by determining the extent of degradation and by analysing the composition of the reaction mixtures. The breakdown mechanism on pectin and pattern of action on methyl oligogalacturonates was studied. Divalent cations were found to activate pectin lyase activity, their activation depended on the pH and DE. Literature on the isolation and characterization of oligogalacturonides and on pectin degrading enzymes is reviewed.
Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonates
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Author : A. G. J. Voragen
language : en
Publisher: Bernan Press(PA)
Release Date : 1972-01-01
Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonates written by A. G. J. Voragen and has been published by Bernan Press(PA) this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972-01-01 with Pectin categories.
Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonates
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Author : Centrum voor Landbouwpublikaties en Landbouwdocumentatie (Netherlands)
language : en
Publisher:
Release Date : 1972
Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonates written by Centrum voor Landbouwpublikaties en Landbouwdocumentatie (Netherlands) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with categories.
Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonatos
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Author : A. G. J. Voragen
language : en
Publisher:
Release Date : 1972
Characterization Of Pectin Lyases On Pectins And Methyl Oligogalacturonatos written by A. G. J. Voragen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with categories.
Agricultural Systems In Ethiopia
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Author :
language : en
Publisher:
Release Date : 1975
Agricultural Systems In Ethiopia written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Agriculture categories.
The Chemistry And Technology Of Pectin
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Author : Reginald H. Walter
language : en
Publisher: Academic Press
Release Date : 2012-12-02
The Chemistry And Technology Of Pectin written by Reginald H. Walter and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Technology & Engineering categories.
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
Advances In Pectin And Pectinase Research
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Author : Fons Voragen
language : en
Publisher: Springer
Release Date : 2013-03-09
Advances In Pectin And Pectinase Research written by Fons Voragen and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
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.
Pectins And Pectinases
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Author : J. Visser
language : en
Publisher: Elsevier
Release Date : 1996-12-06
Pectins And Pectinases written by J. Visser and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-12-06 with Science categories.
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.
Pectins And Their Manipulation
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Author : Graham B. Seymour
language : en
Publisher: CRC Press
Release Date : 2002
Pectins And Their Manipulation written by Graham B. Seymour and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Cooking categories.
Because of their ability to form gels and because of their contributions to the mechanical and textural properties of fruits and vegetables, pectins are extremely valuable in the food industry. These polysaccharide also perform critical functions that impact upon development and defense. This book provides an overview of the current understandings relating to pectin structure and its manipulations. It also addresses the ways by which pectin functions in growing plants and the industrial uses of pectins.
Characterization Of Pectin Lyass On Pectins And Methyl Oliogalacturonates
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Author : A. G. J. Voragen
language : en
Publisher:
Release Date : 1972
Characterization Of Pectin Lyass On Pectins And Methyl Oliogalacturonates written by A. G. J. Voragen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1972 with Pectin categories.