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 regularly lived within the shadow of these medically very important, effective and infrequently broad-spectrum low-molecular­ mass antimicrobials, popular even to laypeople as antibiotics. this is often although bacteriocins have been chanced on as early as 1928, a yr ahead of the penicillin saga all started. Bacteriocins are antimicrobial proteins or oligopeptides, exhibiting a miles narrower job spectrum than antibiotics; they're almost always energetic opposed to bacterial traces taxonomically heavily regarding the manufacturer pressure, that's frequently resistant to 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. most sensible identified are the colicins and microcins produced via Enterobacteriaceae. Many different Gram-negative in addition to Gram-positive micro organism have now been came across to supply bacteriocins. within the final decade renewed curiosity has concerned with the bacteriocins from lactic acid micro organism, that are industrially and agriculturally vitally important. a few of these compounds are even lively opposed to foodstuff spoilage micro organism and endospore formers and likewise opposed to yes clinically vital (food-borne) pathogens. lately, bacteriocins from lactic acid micro organism were studied intensively from each attainable medical perspective: microbiology, biochemistry, molecular biology and nutrition know-how. clever screening is happening to discover novel compounds with unforeseen homes, simply as has occurred (and continues to be taking place) with the antibiotics. wisdom, specially approximately bacteriocins from lactic acid micro organism, is gathering very rapidly.

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

Sample text

1985), the streptococci were subdivided into three genera: Streptococcus sensu stricto comprising the majority of the known species, Enterococcus for the enterococcal group, and Lactococcus for the lactic streptococci. , 1989a) completely support the proposed subdivision. This chapter deals almost exclusively with the lactic streptococci (lactococci) and the faecal streptococci (enterococci). 4 Lactococcus The history of the lactic streptococci starts in 1878 when Joseph Lister described 'Bacterium' lactis, later named 'Streptococcus' lactis (Lohnis, 1909), (see also Table 2).

1889) Bacterium caucasicum (Lehman & Neuman. 1899) Lactobacillus caucasicus (Beijerinck. 1901) Betabacterium caucasicum (Orla-Jensen. 1919) Lactobacterium caucasicum (Krasilnikov. 1949) Lactobacillus Ireflr (NCFB Catalogue of cultures. 1990) Bifidobacterium constellatus (Prevot. 1 938) Pseudobacterium constellatus (Krasilnikov. 1949) Bifidobacterium asteroldes (Scardovi & lrovatelli. 1969) Bacteroides cornutus (Castellani & Chalmers. 1919) Bifidobaclerium cornu tum (Prevot. 1938) Mycobacterium cornu tum (Krasilnikov.

1988 Streptococcus thermophilus Original deacription of the apeciea a Strain deaignationa of type atrain Name of organiam Bifidobaclerium eriksonii (Holdeman & Moore. 1970) Bifidobactsrium dsntium (Scardovi el a/.. • 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.

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