SSRN Electronic Journal,
Год журнала:
2022,
Номер
unknown
Опубликована: Янв. 1, 2022
Diesel
fuel
bioremediation
in
polluted
seawater
is
extremely
challenging,
especially
at
low
temperatures.
Here,
we
isolated
bacterial
consortia
from
rhizosphere
soil
of
Deschampsia
antarctica
(Livingston
Island)
with
the
ability
to
metabolize
petroleum
hydrocarbons,
including
naphthalene,
anthracene,
phenanthrene,
and
n-alkanes.
The
LR-30
(30ºC)
LR-10
(10ºC)
communities
also
degraded
33.4
31.2
(g/L)
out
50
(gDiesel/L)
seawater,
respectively,
7-day
batch
bioreactors.
Profiles
16S
rRNA
gene
sequencing
revealed
that
dominating
genera
community
end
process
were
Achromobacter
(49.3%),
Pseudomonas
(16.7%)
Rhodonobacter
(16.3%),
whereas
for
consortium
(75.3%)
(12.1%)
predominant
members.
Both
microbial
secreted
emulsifying
agents
enabled
access
hydrophobic
hydrocarbon
compounds.
We
developed
a
continuous
diesel
biodegradation
where
bioremediated
an
unprecedent
rate
(34.4
g/L
day),
while
achieved
(24.5
day).
abundance
fluctuated
before
reaching
steady-state,
yet
microbes
redundant
terms
metabolic
capacities
catabolism,
exhibiting
similar
composition
those
found
but
differed
some
composing
compared
Scientific Reports,
Год журнала:
2024,
Номер
14(1)
Опубликована: Янв. 2, 2024
The
pollution
of
soil
and
aquatic
systems
by
inorganic
organic
chemicals
has
become
a
global
concern.
Economical,
eco-friendly,
sustainable
solutions
are
direly
required
to
alleviate
the
deleterious
effects
these
ensure
human
well-being
environmental
sustainability.
In
recent
decades,
biochar
emerged
as
an
efficient
material
encompassing
huge
potential
decontaminate
wide
range
pollutants
from
systems.
However,
application
raw
biochars
for
pollutant
remediation
is
confronting
major
challenge
not
getting
desired
decontamination
results
due
its
specific
properties.
Thus,
multiple
functionalizing/modification
techniques
have
been
introduced
alter
physicochemical
molecular
attributes
increase
their
efficacy
in
remediation.
This
review
provides
comprehensive
overview
latest
advancements
developing
functionalized/modified
via
biological
other
physiochemical
techniques.
Related
mechanisms
further
applications
modified
water
discussed
summarized.
Furthermore,
existing
research
gaps
challenges
discussed,
well
study
needs
suggested.
work
epitomizes
scientific
prospects
complete
understanding
employing
candidate
polluted
regenerative
development.
Frontiers in Microbiology,
Год журнала:
2023,
Номер
13
Опубликована: Март 2, 2023
Accumulating
plastics
in
the
biosphere
implicates
adverse
effects,
raising
serious
concern
among
scientists
worldwide.
Plastic
waste
nature
disintegrates
into
microplastics.
Because
of
their
minute
appearance,
at
a
scale
<5
mm,
microplastics
easily
penetrate
different
pristine
water
bodies
and
terrestrial
niches,
posing
detrimental
effects
on
flora
fauna.
The
potential
bioremediative
application
microbial
enzymes
is
sustainable
solution
for
degradation
Studies
have
reported
plethora
bacterial
fungal
species
that
can
degrade
synthetic
by
excreting
plastic-degrading
enzymes.
Identified
enzymes,
such
as
IsPETase
IsMHETase
from
Ideonella
sakaiensis
201-F6
Thermobifida
fusca
cutinase
(Tfc),
are
able
to
depolymerize
plastic
polymer
chains
producing
ecologically
harmless
molecules
like
carbon
dioxide
water.
However,
thermal
stability
pH
sensitivity
biochemical
limitations
affect
overall
catalytic
activities.
biotechnological
approaches
improves
enzyme
action
production.
Protein-based
engineering
yields
variants
with
higher
enzymatic
activity
temperature-stable
properties,
while
site-directed
mutagenesis
using
Escherichia
coli
model
system
expresses
mutant
thermostable
Furthermore,
microalgal
chassis
promising
"green"
microplastic
biodegradation.
Hence,
properties
genuinely
encouraging
biodegradation
polymers.
