NEW LACTIC ACID BACTERIA

The invention relates to a polynucleotide comprising a lacZ gene (lacZFS) encoding a β-galactosidase characterized by a particular profile regarding its efficiency of hydrolysis of lactose. The invention is also directed to a Streptococcus thermophilus strain comprising a lacZFS allele and bacterial...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LUGAND, Damien, DESFOUGERES, Thomas, JEDRZEJOWSKI, Anais, VAN DILLEN, Sabine, FREMAUX, Christophe, JODEAU, Max Charles
Format:	Patent
Sprache:	eng
Schlagworte:	BEER BIOCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF CULTURE MEDIA DAIRY PRODUCTS, e.g. MILK, BUTTER, CHEESE ENZYMOLOGY FERMENTATION OR ENZYME-USING PROCESSES TO SYNTHESISE A DESIREDCHEMICAL COMPOUND OR COMPOSITION OR TO SEPARATE OPTICAL ISOMERSFROM A RACEMIC MIXTURE FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HUMAN NECESSITIES INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MAKING THEREOF MEASURING METALLURGY MICROBIOLOGY MICROORGANISMS OR ENZYMES MILK OR CHEESE SUBSTITUTES MUTATION OR GENETIC ENGINEERING PHYSICS PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS SPIRITS TESTING THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES VINEGAR WINE
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Beschreibung
Zusammenfassung:	The invention relates to a polynucleotide comprising a lacZ gene (lacZFS) encoding a β-galactosidase characterized by a particular profile regarding its efficiency of hydrolysis of lactose. The invention is also directed to a Streptococcus thermophilus strain comprising a lacZFS allele and bacterial composition thereof, and their use to obtain fermented milk not undergoing post-acidification.