Letters in Applied Microbiology,
Год журнала:
2024,
Номер
77(9)
Опубликована: Авг. 15, 2024
Abstract
Xanthan
gum
is
a
microbial
polysaccharide
produced
by
Xanthomonas
and
widely
used
in
various
industries.
To
produce
xanthan
gum,
the
native
citri-386
was
cheese-whey-based
culture
medium.
The
conditions
were
investigated
batch
experiments
based
on
response
surface
methodology
to
increase
production
viscosity.
Three
independent
variables
this
study
included
feeding
times
of
acetate,
pyruvate,
citrate.
maximum
viscosity
within
120
h
X.
using
Box–Behnken
design
25.7
g/l
65
500
cP,
respectively,
with
151%
394%
as
compared
control
sample.
Overall,
findings
recommend
use
medium
an
economical
optimal
amounts
citrate
for
commercial
industrial
scale.
adjustment
pyruvate
acetate
concentrations
optimized
environment.
Polymers for Advanced Technologies,
Год журнала:
2024,
Номер
35(11)
Опубликована: Ноя. 1, 2024
ABSTRACT
Biopolymers
are
molecules
widely
used
in
many
industries
because
they
biodegradable
and
have
a
natural
origin.
Therefore,
can
be
obtained
from
renewable
resources
organisms
such
as
animals,
plants,
or
microorganisms.
Among
the
best‐known
biopolymers,
xanthan
gum
is
an
anionic
biopolymer
composed
of
glucose,
mannose,
glucuronic
acid,
pyruvic
acetyl
groups.
It
by
fermentation
with
bacteria
genus
Xanthomonas
,
has
good
physicochemical
properties,
it
biocompatible
human
cells.
However,
disadvantages
very
susceptible
to
microbial
contamination.
various
physical,
chemical,
enzymatic
modification
methods
been
developed
improve
its
biological
properties.
Modifications
backbone
chains
made
possible
create
derivatives
new
uses,
drug
delivery
systems
improving
absorption
pharmaceutical
industry
enhance
efficacy
several
treatments
therapeutic
processes,
promote
cell
proliferation
for
tissue
engineering
biomedical
applications
when
hydrogels
films.
They
also
food
products,
cosmetics,
recover
oil
water
ground,
treat
wastewater,
granting
soil
conditions
plant
vegetables
growth.
Hence,
important
know
develop
impart
properties
obtain
novel
gum.
Resources Conservation and Recycling,
Год журнала:
2024,
Номер
207, С. 107688 - 107688
Опубликована: Май 11, 2024
Aerobic
granular
sludge
(AGS)
provides
the
opportunity
to
recover
resources
such
as
phosphorus,
alginate-like
exopolysaccharides,
polyhydroxyalkanoates,
tryptophan,
etc.
Recently,
xanthan,
a
versatile
biopolymer
with
applications
in
food,
oil,
geotechnical,
and
biomedical
industries,
has
been
identified
aerobic
granule
matrix.
The
production
of
xanthan
from
waste
is
encouraged
because
conventional
processes
for
its
are
costly
require
specialized
laboratories.
This
paper
presents
an
overview
recovery
potential
AGS
systems.
Xanthan
yields
20.92
g/L
30.64
have
reported
blended
wastewaters
different
stages
white
rose
wine
processes,
respectively.
Additionally,
yield
range
4.28–15.56
obtained
confectionary
brewery
wastewaters.
Currently,
there
lack
information
scientific
literature
on
factors
that
govern
biosynthesis
Factors
substrate
type,
carbon-to-nitrogen
ratio,
feeding
strategy,
hydrodynamic
shear
force,
organic
loading
rate,
hydraulic
retention
time,
solids
feast/famine
period
optimization
simultaneous
efficient
wastewater
treatment
high
biosynthesis.
Moreover,
quorum
sensing
quenching
approaches
exploration
Further
research
also
needed
development
extraction
purification
protocols
granules.
Letters in Applied Microbiology,
Год журнала:
2024,
Номер
77(9)
Опубликована: Авг. 15, 2024
Abstract
Xanthan
gum
is
a
microbial
polysaccharide
produced
by
Xanthomonas
and
widely
used
in
various
industries.
To
produce
xanthan
gum,
the
native
citri-386
was
cheese-whey-based
culture
medium.
The
conditions
were
investigated
batch
experiments
based
on
response
surface
methodology
to
increase
production
viscosity.
Three
independent
variables
this
study
included
feeding
times
of
acetate,
pyruvate,
citrate.
maximum
viscosity
within
120
h
X.
using
Box–Behnken
design
25.7
g/l
65
500
cP,
respectively,
with
151%
394%
as
compared
control
sample.
Overall,
findings
recommend
use
medium
an
economical
optimal
amounts
citrate
for
commercial
industrial
scale.
adjustment
pyruvate
acetate
concentrations
optimized
environment.
