Fuente: WIPO "milk" A culture containing a viable mass of Bifodobacteria and lactic acid bacteria is obtained by incubating separately or together microorganisms of the genus Bifidobacterium and Lactobacillus, and the species Streptococcus thermophilus in a medium containing milk as the main ingredient. The Streptococcus thermophilus is a strain having high oxygen uptake. When incubated separately, the microorganisms are mixed together after incubating. In the presence of the high oxygen uptake Streptococcus thermophilus, a high survival fraction of the Bifidobacteria is obtained when the culture is stored under aerobic conditions. The culture is useful in preparing food, medicine or feed.