Lactic acid bacteria having improved sugar metabolism

The invention relates to a method for generating a Streptococcus thermophilus strain exhibiting a "high galactose utilization" profile, which is characterized by a high percentage of consumed galactose at the maximum speed of lactose consumption and optionally a high percentage of consumed...

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Bibliographische Detailangaben
Hauptverfasser:	PIANFETTI, Mikael, VAN DILLEN, Sabine, FREMAUX, Christophe, HORVATH, Philippe, GUILLOU, Elodie, JEDRZEJOWSKI, Anäis
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA ENZYMOLOGY METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MUTATION OR GENETIC ENGINEERING ORGANIC CHEMISTRY PEPTIDES PROCESSES USING MICROORGANISMS PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention relates to a method for generating a Streptococcus thermophilus strain exhibiting a "high galactose utilization" profile, which is characterized by a high percentage of consumed galactose at the maximum speed of lactose consumption and optionally a high percentage of consumed galactose at the end of lactose consumption (both as determined by assay I), comprising modifying the sequence of the gal-lac gene cluster. The invention also relates to a Streptococcus thermophilus strain obtained or obtainable by this method, to a Streptococcus thermophilus strain characterized both by the sequence of its gal-lac gene cluster and its "high galactose utilization" profile, to a culture and kit-of part comprising such strains, as well as to the use of such strains in food applications.