Yeasts In Biotechnology

I belie ve that the book would provide an overview of the recent developments in the domain of yeast research with some new ideas, which could serve as an inspiration and challenge for researchers in this field. Ne w Delhi Prof. Asis Datta Dec. 24, 2007 F ormer Vice-chancellor, JNU Director, NCPGR (New Delhi) Pr eface Yeasts are eukaryotic unicellular microfungi that are widely distributed in the natural environments. Although yeasts are not as ubiquitous as bacteria in the na- ral environments, they have been isolated from terrestrial, aquatic and atmospheric environments. Yeast communities have been found in association with plants, a- mals and insects. Several species of yeasts have also been isolated from specialized or extreme environments like those with low water potential (e. g. high sugar/salt concentrations), low temperature (e. g. yeasts isolated from Antarctica), and low oxygen availability (e. g. intestinal tracts of animals). Around 1500 species of yeasts belonging to over 100 genera have been described so far. It is estimated that only 1% of the extant yeasts on earth have been described till date. Therefore, global efforts are underway to recover new yeast species from a variety of normal and extreme environments. Yeasts play an important role in food chains, and carbon, nitrogen and sulphur cycles. Yeasts can be genetically manipulated by hybridization, mutation, rare m- ing, cytoduction, spheroplast fusion, single chromosomal transfer and transfor- tion using recombinant technology. Yeasts (e. g.

This book offers a broad understanding of several ways in which yeasts can be applied to the biotechnology industry. The seven chapters are grouped into three sections (apart from the "Introduction" section). The Animal Nutrition section comprises two chapters dealing with the utilization of yeast as a probiotic for animal nutrition. The Food Industry section addresses the utilization of yeast in food products. Finally, the Industrial Bioproducts section deals with the development of new yeast platforms as cell factories for biochemical production.

This is the first book to extensively and exclusively cover nonconventional yeasts - all yeasts other than S. cerevisiae and S. pombe. In addition to useful background information, the author includes detailed protocols allowing the investigation of basic and applied aspects for a wide range of these organisms. Due to the increasing importance of nonconventional yeasts in biotechnological applications, this book should become the standard reference for both pure and applied scientists working in the fields of microbiology and biochemistry.

This book provides a comprehensive overview on biotechnological applications of unicellular and multicellular fungi in a variety of industrial branches. Targeted genetic and metabolic engineering of fungi allows production of native and transgenic enzymes and proteins in industrial scales. Those most prominently find application in biorefineries for the production of value-added chemicals and biofuels, in the pharmaceutical industry as well as in biomedicine. Each chapter is dedicated to applications and potential beneficial use of particular strains of yeasts and filamentous fungi and their produced biomolecules. The book targets researchers from both academia and industry and graduate students working in microbial biotechnology.

Hefen sind die weltweit wichtigste industriell genutzte Klasse von Mikroorganismen. Viele Lehrbücher beschäftigen sich mit der Molekularbiologie und Genetik dieser Spezies; die Physiologie dagegen ist nur selten ein Thema. Das vorliegende Lehrbuch will diese Lücke füllen - Wachstum und Stoffwechsel der Hefezellen werden behandelt, und stets werden Verbindungen zur biotechnologischen Anwendung aufgezeigt. 06/98

This volume scopes several aspects of non-conventional yeast research prepared by the leading specialists in the field. An introduction on taxonomy and systematics enhances the reader’s knowledge on yeasts beyond established ones such as Saccharomyces cerevisiae. Biotechnological approaches that involve fungal utilization of unusual substrates, production of biofuels and useful chemicals as citric acid, glutathione or erythritol are discussed. Further, strategies for metabolic engineering based on knowledge on regulation of gene expression as well as sensing and signaling pathways are presented. The book targets researchers and advanced students working in Microbiology, Microbial Biotechnology and Biochemistry.

Biotechnology Biotechnology is is now now established established as as a a major major area area of of technology, technology, concerned concerned with with the' the' application application of of biological biological organisms, organisms, systems systems or or processes processes to to manufac turing turing or or service service industries'. industries'. Although Although the the exploitation exploitation of of organisms organisms by by man man is is not not new, new, many many of of the the techniques techniques which which are are stimulating stimulating the the rapid rapid advances advances in in biotechnology biotechnology have have developed developed from from recent recent scientific scientific discoveries. discoveries. Throughout Throughout history history man man has, has, knowingly knowingly or or not, not, been been exploiting exploiting yeast yeast in in the the production production of of alcoholic alcoholic beverages beverages and and bread, bread, and and these these processes processes still still represent represent major major biotechnological biotechnological industries. industries. The The brewer's brewer's and and baker's baker's yeast yeast Sac charomyces charomyces cerevisiae cerevisiae is, is, however, however, also also a a favoured favoured organism organism for for the the production production of of many many new new biotechnological biotechnological products. products.