Biotechnological Applications of the Ubiquitous Fungus Penicillium sp. 8L2: Biosorption of Zn(II) and Synthesis of ZnO Nanoparticles as Biocidal Agents
Sustainability,
Journal Year:
2025,
Volume and Issue:
17(6), P. 2379 - 2379
Published: March 8, 2025
In
this
study,
the
capacity
of
ubiquitous
filamentous
fungus
Penicillium
sp.
8L2
to
remove
Zn(II)
ions
present
in
synthetic
solutions
was
studied
and
optimal
operating
conditions
were
obtained
based
on
a
response
surface
methodology
(RSM).
The
contact
time
optimized
through
kinetic
tests.
Equilibrium
tests
then
carried
out,
which
allowed
biosorption
isotherms
be
for
several
mathematical
models.
At
same
time,
fungal
cell
extract
transform
metal
into
ZnO
nanoparticles
with
biocidal
evaluated.
Its
inhibitory
five
microbial
strains
determined.
mechanisms
nanoparticle
synthesis
characterized
by
different
crystallographic,
spectrophotometric
microscopic
analytical
techniques.
It
confirmed
that
bound
superficially
but
also
periplasmic
space
strong
bond
phosphate
groups,
both
stage
during
consolidation
nanoparticles.
addition,
presence
hydroxyl,
amino,
carbonyl
methylene
groups
identified,
could
promote
nanoparticles,
since
some
them
have
reducing
nature.
kinetics
showed
occurred
two
stages,
first
very
fast
second
slower.
identified
maximum
52.14
mg/g
Langmuir
model
under
conditions:
5
days,
pH
5.6
0.2
g/L
biomass
dose.
success
biological
route
an
average
size
18
nm
obtained.
data
good
inhibition
ability
against
tested
microorganisms,
values
ranging
from
62.5
1000
µg/mL.
is
promising
microorganism
field
heavy
applied
biotechnology.
Language: Английский
Biosorption, Recovery and Reuse of Cu(II) by Penicillium sp. 8L2: A Proposal Framed Within Environmental Regeneration and the Sustainability of Mineral Resources
Sustainability,
Journal Year:
2024,
Volume and Issue:
16(24), P. 11001 - 11001
Published: Dec. 15, 2024
The
copper
contamination
of
terrestrial
and
aquatic
ecosystems
is
a
major
global
environmental
problem.
Copper
metal
used
in
many
industrial
agricultural
processes
that
bioaccumulative
highly
toxic,
making
its
elimination,
recovery
reuse
great
interest
for
sustainability.
At
the
same
time,
use
ubiquitous
microorganisms
presented
as
crucial
tool
field
sustainability
mineral
resources,
which
cases
end
up
pollutants,
since
they
can
allow
metallic
ions
present
low
concentrations
and,
parallel,
reconversion
these
into
crystalline
species
be
other
technological
fields.
potential
microorganism,
Penicillium
sp.
8L2,
to
retain
Cu(II)
was
investigated,
well
ability
cellular
extract
synthesize
CuO
nanoparticles,
were
subsequently
evaluated
biocidal
agents
against
five
microorganisms.
A
response
surface
methodology
determine
optimal
operating
conditions
biosorption
process,
setting
pH
at
4.8
biomass
concentration
0.8
g/L
obtaining
maximum
capacity
equilibrium
25.79
mg/g
Langmuir
model.
Different
analytical
techniques
study
mechanisms,
revealed
presence
adsorption
intracellular
bioaccumulation
phenomena
involving
different
functional
groups.
fungal
cell
allowed
successful
synthesis
CuO-NPs
with
an
average
size
22
nm.
tests
performed
nanoparticles
showed
promising
values
minimum
inhibitory
between
62.5
500
µg/mL.
8L2
good
application
heavy
bioremediation
green
useful
biomedicine.
Language: Английский