Read e-book online An Introduction to Polysaccharide Biotechnology PDF

By Stephen E. Harding, Michael P. Tombs, Gary G. Adams, Berit Smestad Paulsen, Kari Tvete Inngjerdingen, Hilde Barsett

ISBN-10: 148224697X

ISBN-13: 9781482246971

Polysaccharides and similar excessive molecular weight glycans are highly assorted with vast program in Biotechnology and nice possibilities for additional exploitation. An creation to Polysaccharide Biotechnology – a moment variation of the preferred unique textual content by way of Tombs and Harding – introduces scholars, researchers, clinicians and industrialists to the homes of a few of the major fabrics concerned, how those are utilized, a number of the monetary components referring to their creation and the way they're characterised for regulatory purposes.

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Thus, they are very large molecules of low solubility. 1 An Introduction to Polysaccharides heterogeneous attack on the insoluble substrate. Because of the branching at least two enzymes are needed to bring about complete hydrolysis, and enzymatic hydrolysis is a fertile area for biotechnology. The red algae produce a so-called floridean starch which occurs in granules, but behaves like glycogen when treated with hydrolytic enzymes, and appears to contain a high proportion of 1→6 linkages. The green seaweeds contain both amylose- and amylopectin-like materials, though not at high levels.

An alternative and previously popularly used strategy is to generate peptides from the amino acid sequence and raise antibodies to these and also generate monoclonal antibodies. Isolation of purified enzyme from a plant tissue can be challenging depending on the levels of the specific protein in a particular tissue. 1% of the protein in a typical plant tissue. This will have about 20% protein, so that the amount of enzyme present is about 1 g in 5 kg of source material. The overall yield for a highly purified protein is likely to be around 5%, and very unlikely to exceed 10%.

The general enzyme classification has six classes: 1. Oxidoreductases. The main limitation on the use of this class is their requirement for cofactors such as NAD and NADH. While it is possible to include ancillary systems to produce these, in practice the only applications are very small scale as in diagnostics and monitors. Glucose oxidase is the best known example. 2 The Potential for Biotechnology 2. Transferases. These are of particular interest in polysaccharide synthesis, and have been exploited in making cyclic dextrans.

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An Introduction to Polysaccharide Biotechnology by Stephen E. Harding, Michael P. Tombs, Gary G. Adams, Berit Smestad Paulsen, Kari Tvete Inngjerdingen, Hilde Barsett

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