Download Agriculture and Food Production by George G. Khachatourians and Dilip K. Arora (Eds.) PDF

By George G. Khachatourians and Dilip K. Arora (Eds.)

ISBN-10: 0444510303

ISBN-13: 9780444510303

This quantity of utilized Mycology and Biotechnology completes the set of 2 volumes devoted to the assurance of contemporary advancements at the subject "Agriculture and nutrition Production". the 1st quantity supplied evaluate on fungal body structure, metabolism, genetics and biotechnology and highlighted their reference to specific functions to nutrients construction. the second one quantity examines a number of particular functions of mycology and fungal biotechnology to meals construction and processing. within the moment quantity insurance on last parts of the topic, meals crop creation and functions within the meals and drinks zone, is gifted. The interdisciplinary and intricate nature of the topic sector, mixed with the necessity to reflect on the sustainability of agri-food practices, its economics and commercial views, calls for a undeniable concentration and selectivity of matters. during this context the new literature contained during this paintings can help readers arrive at entire, intensive info at the position of fungi in agricultural nutrients and feed know-how. As a certified reference this booklet is focused in the direction of agri-food manufacturer learn institutions, govt and educational devices. lecturers and scholars, either in undergraduate and graduate experiences, in departments of foodstuff technological know-how, nutrients know-how, nutrients engineering, microbiology, utilized molecular genetics and biotechnology also will locate this paintings precious.

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Capensis), low volatile acidity (var. rosei) [22], film-forming strains with strong oxidative capabilities (var. beticus and cheresiensis), high concentrations of acetaldehyde production and tolerance (var. montuliensis and rouxii) and others [12, 23, 24, 25, 26], all varieties belonging to the same species, S. cerevisiae. In conclusion, assignment of traditional wine yeast strains to the single species S. cerevisiae does not imply that they are similar, either phenotypically or genetically. The strains differ significantly not only in their metabolic features such as fermentative capacities, or production of aromatic compounds [11, 26] but also in their genetic configuration such as DNA content, 25 chromosomal pattern or mtDNA sequence [12, 23, 27], as will be discussed below.

Yeasts of the genera Kloeckera, Candida, Pichia and others described above eventually died out, leaving S. cerevisiae as the dominant species to complete the fermentation [91]. Further inoculation of musts with strains of S. cerevisiae selected among indigenous yeasts occurring naturally in the wine making area contributed to a better control of alcoholic fermentation of wines [91]. Furthermore, inoculation of Torulaspora delbrueckii and S. cerevisiae sequentially, the former with low acetogenic power and the latter with high alcoholgenic power, was beneficial for the production of wines with low volatile acidity [91].

Whereas a standard haploid laboratory strain displays 15 bands corresponding to 16 chromosomes, great variations have been found in all sorts of industrial yeasts, both in the number and size of the chromosomes, resulting in variations both in the number and position of the chromosomal bands [27, 31-34]. Differences in the number of chromosomal bands are mostly the result of homologous chromosomes of different sizes [27]. In some cases polymorphism is so high that nearly each strain can be identified unequivocally by its specific chromosomal pattern [35].

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