33 NOVEL LACTIC ACID BACTERIA ABSTRACT THE PRESENT INVENTION RELATES TO BACTERIA OF A GENUS LACTOCOCCUS HAVING BACTERIOLOGICAL PROPERTIES OF. (1) FERMENTABILITY WHICH CURDLES A 10(W/W) 5 RECONSTITUTED SKIM MILK MEDIUM WHEN CULTIVATED AT A TEMPERATURE OF 25'C TO 37'C FOR 16 HOURS; (2) BIFIDOBACLERIUM LONGUM GROWTH-PROMOTING PROPERTIES WHICH LEAD TO A VIABLE COUNT OF BIJIDOBACTERIUM LONGUM OF 5X108 CFU/G OR MORE, WHEN CO-CULTIVATED WITH BIFIDOBACTERIUM LONGUNI IN THE 10(W(W) RECONSTITUTED SKIM MILK MEDIUM UNTIL THE PH THEREOF IS 4.4 TO 4.6; AND (3) BIFIDOBACLERIUM LONGUM SURVIVABILITY-IMPROVING PROPERTIES 10 DURING STORAGE, WHICH LEAD TO A SURVIVAL RATE OF BIJIDOBACTERIUN? LONGUM OF 30OR MORE, AFTER CO-CULTIVATION WITH BIJIDOBACTERIUM LONGUM IN THE 10(W/W) RECONSTITUTED SKIM MILK MEDIUM UNTIL THE PH THEREOF IS 4.4 TO 4.6, RAPID COOLING, AND TWO WEEKS STORAGE AT 100C.