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  • 1
    Keywords: Life sciences ; Microbiology ; Microbial ecology ; Bacteriology ; Life sciences ; Microbial ecology ; Applied Microbiology ; Bacteriology ; Springer eBooks
    Description / Table of Contents: 1 Systematics of acetic acid bacteria -- 2 Acetic acid bacteria in productions of vinegars and traditional fermented foods -- 3 Acetic acid bacteria in fermented food and beverage ecosystems -- 4 Acetic Acid Bacteria as Plant Growth Promoters -- 5 Acetic acid bacteria as symbionts of insects -- 6 Drosophila-Acetobacter as a model system for understanding animal-microbiota interactions -- 7 Distribution, evolution and physiology of oxidative fermentation -- 8 Physiology of Acetobacter spp.: Involvement of molecular chaperones during acetic acid fermentation -- 9 Physiology of Komagataeibacter spp. during acetic acid fermentation -- 10 Physiology of Acetobacter and Komagataeibacter spp.: Acetic acid resistance mechanism in acetic acid fermentation -- 11 Central carbon metabolism and respiration in Gluconobacter oxydans -- 12 Metabolic features of Acetobacter aceti -- 13 Membrane-bound dehydrogenases of acetic acid bacteria -- 14 Cellulose and other capsular polysaccharides of acetic acid bacteria -- 15 Industrial application of acetic acid bacteria (vitamin C & others)
    Abstract: This book provides all facets of acetic acid bacteria (AAB) and offers the future targets and directions of AAB research. It summarizes the distinctive physiological properties of AAB and the recent progress on AAB study, especially in the following five areas: 1) Molecular phylogeny and genome study of AAB; 2) Ecological features of AAB: interaction with plants, natural fermentation systems, and insects; 3) Physiological features and living strategies of AAB, including rapid oxidation ability, acid resistance, biofilm formation, and genetic instability; 4) Molecular mechanisms of several oxidative fermentations such as acetate fermentation, sorbose fermentation, and ketogluconate fermentation; 5) Recent biotechnological aspects of AAB: biocatalysts, biosensors, biocellulose, and other useful polysaccharides. AAB research has a long history since the discovery of AAB by Louis Pasteur and the identification of AAB by Martinus Beijerinck in the nineteenth century. In the twentieth century, basic research on the taxonomic study of AAB and on biochemical study for the unique oxidative reactions of AAB had progressed as well as the industrial application of AAB not only in vinegar fermentation but also in the bioconversion process for useful chemical or pharmaceutical products. Entering the twenty-first century, AAB research has expanded more, and further progress is expected to be seen in all fields of AAB: classification and ecology, physiology and biochemistry, genetics, and biotechnology of vinegar fermentation and other oxidative fermentations. Far-reaching development in the last decade makes these bacteria more valuable for various industrial uses. Readers can obtain useful and comprehensive information which is exciting in aspects of basic science and provides hints for the better application of these bacteria to various kinds of practical production scenarios as well
    Pages: VIII, 350 p. 68 illus., 46 illus. in color. : online resource.
    ISBN: 9784431559337
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  • 2
    ISSN: 1617-4623
    Keywords: Microbial protease ; Proenzyme ; Secretion ; Yeast
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The aspartic protease gene of a zygomycete fungus Mucor pusillus was expressed in Saccharomyces cerevisiae under the control of the yeast GAL7 promoter. A putative preproenzyme with an NH2-terminal extension of 66 amino acids directed by the gene was processed in yeast cells and the mature enzyme, whose NH2-terminus was identical to that of the Mucor enzyme, was efficiently secreted into the medium at a concentration exceeding 150 mg/l. The enzyme secreted from the recombinant yeast was more glycosylated than the native Mucor enzyme but its enzymatic properties were almost identical with those of the native enzyme, which has been used as a milk coagulant in cheese manufacture.
    Type of Medium: Electronic Resource
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