Superior Probiotic Potential of Saccharomyces cerevisiae YH14: In vitro and In vivo Evaluation for Animal Nutrition and Health
Abstract
The
gastrointestinal
tract
of
native
animals
represents
a
valuable
reservoir
probiotic
candidates.
In
this
study,
yeast
strains
were
isolated
from
the
feces
healthy
pigs
raised
in
southern
Thailand
and
evaluated
for
potential,
safety,
extracellular
enzyme
production
vitro.
most
promising
isolate,
Saccharomyces
cerevisiae
YH14,
was
selected
in
vivo
evaluation
murine
model.
YH14
exhibited
robust
growth
at
37°C
demonstrated
high
tolerance
to
acidic
(127.38%)
bile
salt
(139.94%)
conditions.
strain
showed
strong
auto-aggregation
(90.09%),
cell
surface
hydrophobicity
(59.21%),
notable
adhesion
Caco-2
cells
(43.18%).
Co-aggregation
with
enteric
pathogens—including
enterohemorrhagic
E.
coli
(55.37%),
enteropathogenic
(57.91%),
Salmonella
Typhimurium
(56.62%)—was
observed
intermediate
levels.
non-hemolytic
produced
beneficial
feed
enzymes,
including
xylanase
phytase.
In
vivo ,
administration
induced
no
mortality,
behavioral
changes,
or
adverse
effects
on
intake
body
weight
gain.
Histological
examination
revealed
preserved
tissue
architecture
intestine,
liver,
spleen,
signs
inflammation.
Moreover,
modulated
gut
microbiota
by
promoting
bacterial
populations
suppressing
potential
pathogens,
without
significantly
altering
overall
microbiome
diversity.
These
findings
support
application
S.
as
additive
improving
health
digestive
efficiency
livestock.
Published: May 7, 2025
Language: Английский