The bifidobacteria that we used were originally isolated from
humans, and therefore their nutrient requirements may be very
specific. Even though Bifidobacterium RBL 00079 can utilize
sugars found in soy beverage, the slow initial growth of the
bifidobacteria in the soy beverage may indicate a need for other
nutrients that only become available in large quantities after the
two yoghurt starter culture bacteria have established the
fermentation process.