could be also connected with fermentation. Bifidobacteria
strains, specifically, are able to metabolise
n-hexanal and pentanal in soymilk – the former is
responsible for the undesirable flavour (Desai et al.
2002). Furthermore, fermentation also reduces the
content of soy galactooligosaccharides: indigestible
carbohydrates, which can in higher amounts cause
undesirable flatulence (Scalabrini et al. 1998).
The aims of the present study were to compare
the growths of the yoghurt culture and two different
strains of bifidobacteria in cow milk and soymilk,
to evaluate the production of short fatty acids and
acetaldehyde, and to confirm the biotransformation
of isoflavone glycosides to aglycons during the
fermentation proces