Microbiology

Bacteriocins of Lactic Acid Bacteria: Microbiology, Genetics by Luc De Vuyst, Erick J. Vandamme

By Luc De Vuyst, Erick J. Vandamme

As antibacterial compounds, bacteriocins have continually lived within the shadow of these medically vital, effective and sometimes broad-spectrum low-molecular­ mass antimicrobials, renowned even to laypeople as antibiotics. this can be although bacteriocins have been came upon as early as 1928, a yr ahead of the penicillin saga begun. Bacteriocins are antimicrobial proteins or oligopeptides, showing a far narrower job spectrum than antibiotics; they're usually lively opposed to bacterial traces taxonomically heavily regarding the manufacturer pressure, that's often proof against its personal bacteriocin. They shape a heterogenous team with reference to the taxonomy of the manufacturing bacterial traces, mode of motion, inhibitory spectrum and protein constitution and composition. top recognized are the colicins and microcins produced via Enterobacteriaceae. Many different Gram-negative in addition to Gram-positive micro organism have now been came upon to provide bacteriocins. within the final decade renewed curiosity has thinking about the bacteriocins from lactic acid micro organism, that are industrially and agriculturally extremely important. a few of these compounds are even lively opposed to foodstuff spoilage micro organism and endospore formers and in addition opposed to yes clinically vital (food-borne) pathogens. lately, bacteriocins from lactic acid micro organism were studied intensively from each attainable clinical attitude: microbiology, biochemistry, molecular biology and nutrients expertise. clever screening is happening to discover novel compounds with unforeseen houses, simply as has occurred (and remains to be occurring) with the antibiotics. wisdom, particularly approximately bacteriocins from lactic acid micro organism, is collecting very rapidly.

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Extra resources for Bacteriocins of Lactic Acid Bacteria: Microbiology, Genetics and Applications

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8 Bifidobacterium The history of Bifidobacterium starts in 1900 (Tissier, 1900) with the discovery of 'Bacillus bifidus communis' in the faeces of infants. The genus Bifidobacterium was described only in 1924 (Orla-Jensen, 1924) with the transfer of 'Bacillus' bifidus to Bifidobacterium bifidum. , 1957). Because of their importance in the gastrointestinal tract, particularly in neonates, bifidobacteria have been studied with increasing interest. The major topic in the period before 1957 was the host-bacterium interaction, and little progress was made on the physiology and taxonomy of these bacteria.

1960) 1) Asrococcus viridans (Schultes & Evans. • 1990) Lsuconostoc msssntsroidss (van lieghem. 1878) Balacoccus masen/aroides (Orla-Jensen. 1919) Lsuconostoc mIIssnteroidss ssp. enteroide. (Garvie. 1983) Bindobacterium acidophilum (Prevot. • 1923) 2) Lactobacillus gasserl (Lauer & Kandler. • 1992) LactDbacillus acidophH-aerogen9S (Bergey el a/.. 1923) Lactobacterium acidophi-aerogen9S (Krasilnikov. 1949) 1) Lactobacillus "'evls (NCFB Catalogue of cultures. 1990) 2) Invalid Bacteroides bifidus (Castellani & Chalmers.

1989b) LaetolMcillulI casei . p. , 1989b) LaetolMcillus paracasei ssp. , 1972) LactolMcillus viridescens (Kandler & Abo-Elnaga, 1966) Lactobacillus viridescens ssp. , 1 983a) Enterococcus diphteroides (Severi, 1943) Enterococcus glycerinaceus (Severi, 1942) Enterococcus laecalis var. liquefaciens (Mattick, 1949) Enterococcus laeca/is var. , 1953) Lactobacillus cerea/e (Holland, 1920) Lactobacillus cerea/e (Olsen, 1944) Lactobacillus ciliatus (Kitahara, 1940) Lactobacillus conglomeratus (Beijerinck, 1901) Lactobacillus coprophilus ssp.

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