LACTIC ACID BACTERIUM BELONGING TO GENUS LACTOCOCCUS AND VISCOUS LACTIC ACID BACTERIUM BELONGING TO GENUS LACTOCOCCUS EACH HAVING IMMUNOACTIVATING EFFECT, AND METHOD FOR PRODUCING VISCOUS FERMENTED MILK USING THEIR COMBINATION

摘要

PROBLEM TO BE SOLVED: To provide a lactic acid bacterium belonging to the genus Lactococcus having immunoactivating effect suitable to producing a fermented milk, to provide a lactic acid bacterium belonging to the genus Lactococcus, presenting viscosity through producing extracellular polysaccharides in milk, and to provide a method for producing a fermented milk with immunoactivating effect and viscosity using these lactic acid bacteria in combination. SOLUTION: The lactic acid bacterium, Lactococcus lactis subsp. cremoris, and the other lactic acid bacterium, Lactococcus lactis subsp. lactis biovar. diacetylactis YRC3784 strain(NITE P-144), having immunoactivating effect and isolated from kefir, are provided, respectively. The method for producing the fermented milk involving using these lactic acid bacteria as starters is also provided. COPYRIGHT: (C)2008,JPO&INPIT