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Impact of Gums on the Growth, Viability, and Enzyme Activity of Lactobacillus Species
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Impact of Gums on the Growth, Viability, and Enzyme Activity of Lactobacillus Species
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462.pdf
Description
Title
Impact
of
Gums
on the
Growth
,
Viability
, and
Enzyme
Activity
of
Lactobacillus
Species
Subject
Energy
and
Environmental
Systems
Description
This
study
investigated
the
impact
of
ten
selected
gums
(carrageenan
,
carrageenan-maltodextrin
,
guar
,
locust
bean
,
pectin
,
pectin-
dextrose
,
pectin-carrageenan
,
guar-locust
bean-carrageenan
,
inulin
, and
xanthan)
on the
growth
of
eight
Lactobacillus
strains
in
laboratory
media
. The
bacterial
population
for
eight
Lactobacillus
strains
was
determined
in
modified
basal
media
at
different
concentration
(0%
,
0.25%
and
0.5%
w/v)
of
gums
stored
up
to
12
hours
at
37
°C
.
Findings
show
significant
differences
(p
<
0.05)
between
the
treated
and
control
sample
.
Guar
was
found
to be the
best
gum
to
enhance
growth
of
L
.
rhamnosus
GG
B101
,
L
.
rhamnosus
GG
B101
,
L
.
delbrueckii
subsp
.
bulgaricus
SD35
,
L
.
delbrueckii
subsp
.
bulgaricus
SD33
,
L
.
acidophilus
SD
16
,
L
.
acidophilus
EF7
,
L
.
reuteri
DSM20016
,
L
.
reuteri
CF2-2F
during
12
hours
of
storage
at
37
C
in
laboratory
media
. The
population
of
L
.
rhamnosus
GGB101
in the
samples
containing
gums
were
significantly
(p
<
0.05)
higher
than the
control
without
gums
.
Samples
containing
0.5%
gums
showed
slightly
higher
bacterial
population
than those with
0.25%
of
gum
. A
minimum
of
12
hour
of
incubation
period
was
shown
to be
adequate
to
reach
a
bacterial
population
of
6
log
CFU/mL
in the
presence
of
gums
.
Addition
of
guar
(0.5%)
led
to the
highest
(1.31
log
CFU/mL)
increase
in
population
of the
treated
L
.
rhamnosus
GGB101
over
the
control
. There was
no
marked
(p
<
0.05)
change
in
pH
and
titratable
acidity
.
Creator
Karlton-Senaye
,
Bernice
D
.
Publisher
North Carolina Agricultural and Technical State University
Date
2014
Type
TEXT
Format
PDF
Language
English
Major Professor
Ibrahim
,
Salam
A.
Academic Department
Energy
and
Environmental
Systems
Degree
DOCTOR
OF
PHILOSOPHY
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