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Yang-Gong
A
NEW
FAVORITE HEAUTH
FOOD.
STACHYOSE
The normal bacterial
inhabitants
-
the "microflora"
of
the large bowel are
important to health
as
they
help
to com-
plete digestion through fermentation,
stimulate development ol the
immune
system and
some
of
them,
e.9.,
Bifidobacteria protect the large
bowel
against
disease-causing
bacteria. The
growth and metabolism depend prima-
rily on
the substrates available to them,
most of
which
come from
the
diet.
Thus,
attempts to
modify
their structure
and
metabolic activities of
these
bacteria
through
diet
changes
are
feasible
using
the so-called "probiotics"
which
are live bacteria, e.9., lactic acid bacte-
ria
and bifidobacteria found
in
yoghurts
and other dairy products.
These
bacte-
ria
are
not
disease-causing and
retain
viability during storage, and
survive
passage through stomach and bowels.
Probiotics have been
used
to treat or
prevent diarrhea and to improve symp-
toms
in
lactose intolerance.
On the
other hand, "prebiotics" are non-digest-
ible
food ingredients, e.9., oligosaccha-
ride sugars which include stachyose
sugars
that
have become popular as a
health
food. These sugars can stimu-
late selectively the growth or activities,
or both, of lactobacilli or bifidobacterial
in
the colon. Probiotics and prebiotics
suppress mutation; lactobacilli
also
degrade cancer-causing
chemicals.
Many
other potential health
benefits
have been described
by
the author and
further
studies
are warranted.
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