Maximization of the Production of a Low-Cost Biosurfactant for Application in the Treatment of Soils Contaminated with Hydrocarbons
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(18), P. 7970 - 7970
Published: Sept. 12, 2024
Oil
spills
occur
during
different
operations
in
the
energy
sector,
such
as
crude
oil
transport,
tank
filling
and
cleaning,
fueling.
Such
are
one
of
major
causes
accumulation
derivatives
environment,
requiring
remediation
soil
marine
environments.
The
production
a
biosurfactant
by
Starmerella
bombicola
ATCC
222214
was
maximized
investigating
effect
carbon/nitrogen
sources
culture
conditions.
mineral
medium
selected
for
its
supplemented
with
2.0%
potato
peel
flour,
5.0%
waste
canola
frying
oil,
0.20%
urea.
conditions
were
200
rpm
shaking
speed,
fermentation
time
180
h,
4.0%
inoculum
size.
yield
isolated
7.72
g/L.
emulsification
rates
heavy
motor
65.55
95.00%,
respectively,
indicating
an
affinity
complex
hydrocarbons.
In
stability
tests
performed
at
pH
values,
temperatures,
NaCl
concentrations,
surface
tension
ranged
from
27.14
to
31.08
mN/m.
critical
micelle
concentration
2.0
g/L,
which
33.26
composed
6,6-dimethoxy-octanoic
acid
azelaic
acid,
it
exhibited
low
toxicity
Brassica
oleracea
Solanum
lycopersicum.
kinetic
test,
allowed
removal
82.30%,
96.65%,
98.25%
exhaust
sand,
silty
soil,
clay
while
static
test
packed
columns,
yields
66.62%,
63.03%,
58.45%,
respectively.
produced
this
study
is
promising
environmental
applications
sector.
Language: Английский
Surfactin inhibits enterococcal biofilm formation via interference with pilus and exopolysaccharide biosynthesis
Chun-Yi Wu,
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Hung‐Tse Huang,
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Yu-Ting Chiang
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et al.
BMC Microbiology,
Journal Year:
2025,
Volume and Issue:
25(1)
Published: Feb. 24, 2025
Enterococcus
faecalis
is
a
significant
pathogen
in
healthcare
settings
and
frequently
resistant
to
multiple
antibiotics.
This
resistance
compounded
by
its
ability
form
biofilms,
dense
bacterial
communities
that
are
challenging
eliminate
via
standard
antibiotic
therapies.
As
such,
targeting
biofilm
formation
considered
viable
strategy
for
addressing
these
infections.
study
assessed
the
effectiveness
of
surfactin,
cyclic
lipopeptide
biosurfactant
synthesized
Bacillus
subtilis
natto
NTU-18,
preventing
E.
faecalis.
Analytical
characterization
surfactin
was
performed
liquid
chromatography‒mass
spectrometry
(LC‒MS).
Additionally,
transcriptomic
sequencing
quantitative
PCR
(qPCR)
were
used
investigate
alterations
gene
expression
following
treatment
with
surfactin.
The
data
revealed
notable
suppression
crucial
virulence-related
genes
responsible
pilus
construction
exopolysaccharide
synthesis,
both
which
vital
adhesion
structure.
Functional
tests
confirmed
substantially
reduced
attachment
Caco-2
cell
monolayers
curtailed
production.
Moreover,
confocal
laser
scanning
microscopy
thinning
biofilms.
These
observations
support
potential
utility
as
therapeutic
agent
manage
biofilm-associated
infections
caused
Language: Английский
Microbial Responses to Hydrocarbon Contamination and Its Bioremediation
Susmita Paul,
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Birson Ingti,
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Dipayan Das
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et al.
Published: Jan. 1, 2025
Language: Английский
Bioremediation of Hydrocarbon-Contaminated Environments: Harnessing the Potential of Biosurfactants – A review
U. Sowbaranika,
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Ashok Kumar K,
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M. Jayanthi
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et al.
Journal Of Advanced Zoology,
Journal Year:
2023,
Volume and Issue:
44(4), P. 522 - 526
Published: Nov. 21, 2023
Hydrocarbon
contamination
from
industries
like
petrochemicals
threatens
the
environment
and
public
health.
Benzene,
toluene,
xylene,
polycyclic
aromatic
hydrocarbons
in
petroleum
products
are
highly
toxic.
Conventional
cleanup
methods
costly
risk
secondary
pollution.
This
review
highlights
biosurfactants,
microbially
produced
compounds
that
enhance
hydrocarbon
degradation
by
lowering
surface
tension
increasing
bioavailability.
Biosurfactants
biodegradable
eco-friendly,
making
them
a
sustainable
alternative
to
synthetic
surfactants.
The
intends
cover
biosurfactant
sources,
types,
mechanisms,
their
applications
hydrocarbon-contaminated
environments.
Recent
bioremediation
advancements,
including
microbial-enhanced
oil
recovery,
soil
water
cleanup,
heavy
metal
removal,
discussed.
Optimizing
production
is
also
explored,
offering
green
effective
solution
combat
promote
environmental
restoration.
Language: Английский