Polymers,
Год журнала:
2024,
Номер
16(20), С. 2863 - 2863
Опубликована: Окт. 10, 2024
This
paper
presents
research
aimed
at
laboratory
experiments
on
static
and
cyclic
fatigue
testing
of
low-density
polyethylene
(LDPE)
recovered
from
post-consumer
waste
in
order
to
develop
a
recycled
product
exhibiting
satisfactory
mechanical
thermo-mechanical
properties.
The
results
the
tests
set
up
80%
maximum
load
tensile
demonstrated
functionality
material
developed
by
using
injection
molding
process.
There
was
no
significant
change
strength
under
tests.
Under
loading,
there
quasi-static
effect
manifested
plastic
deformation,
displacement
increased
significantly.
indicated
improvement
performance
LDPE
as
compared
virgin
material,
owing
high
quality
regranulates.
Fourier
Transform
Infrared
Spectroscopy
(FTIR)
conducted
analyze
functional
groups
samples.
analysis
showed
transmittance
spectra.
thermal
degradation
also
analyzed
Differential
Scanning
Calorimetry
(DSC)
Dynamic
Mechanical
Analysis
(DMA).
were
quite
similar
for
both
LDPE.
Journal of Basic Microbiology,
Год журнала:
2024,
Номер
unknown
Опубликована: Ноя. 21, 2024
ABSTRACT
Bacillus
cereus
group
produces
diverse
antimicrobial
compounds
through
different
metabolic
pathways,
including
amino
acid‐based
compounds,
sugar
derivatives,
volatile
and
miscellaneous
compounds.
These
exhibit
antibacterial
antifungal
activities
against
various
plant
pathogens,
promoting
growth
enhancing
tolerance
to
abiotic
stresses.
They
also
nematicidal
nematodes
antagonistic
effects
pathogens
in
aquatic
animals,
inducing
immune
responses.
Moreover,
B.
bacteria
play
a
significant
role
bioremediation
by
breaking
down
or
neutralizing
environmental
pollutants,
such
as
plastics,
petroleum
products,
heavy
metals,
insecticides.
produce
enzymes
like
laccases,
lipases,
proteases,
oxidases,
contributing
the
degradation
of
these
pollutants.
In
food
industry,
they
can
cause
poisoning
due
their
production
enterotoxins.
However,
are
utilized
industrial
applications,
producing
environmentally
friendly
bio‐based
materials,
biofertilizers,
nanoparticles.
Notably,
transforms
selenite
into
selenium
nanoparticles,
which
have
health
benefits,
cancer
prevention.
summary,
applications
agriculture,
bioremediation,
medicine,
sustainable
eco‐friendly
solutions
across
multiple
fields.
this
review,
we
revised
characteristics
every
species;
highlighted
more
important
secreted
species
The
aim
is
explain
available
secondary
metabolites
classify
from
group,
increasing
knowledge
about
taxonomy
group.
Journal of Industrial Microbiology & Biotechnology,
Год журнала:
2024,
Номер
51
Опубликована: Янв. 1, 2024
There
is
a
growing
interest
in
developing
methodology
for
effectively
cleaving
carbon-carbon
(C-C)
bonds
polymer
backbones
through
bioconversion
processes
that
utilize
microorganisms
and
their
enzymes.
This
upsurge
of
driven
by
the
goal
achieving
circular
economy.
Polyolefin
post-consumer
plastics
are
substantial
source
carbon,
but
recycling
potential
severely
limited.
Upcycling
routes
needed
converting
polyolefin
into
value-added
products
while
concurrently
mitigating
adverse
environmental
effects.
These
materials
contain
carbon-based
chemicals
can,
principle,
serve
as
feedstock
microbial
metabolism.
Some
microbes
have
been
reported
to
grow
on
plastics,
rate
biodegradation
insufficient
industrial
processes.
In
this
study,
low-density
polyethylene
(LDPE)
films
were
subjected
two
mild
ozone-based
oxidation
treatments,
which
facilitated
biodegradation.
The
degree
was
determined
Fourier
transform
infrared
spectroscopy
via
analysis
carbonyl
index
(1,710/1,460
cm-1),
ranged
from
0.3
2.0,
also
carboxylic
acid
content.
Following
films,
studies
conducted
investigate
ability
panel
polyvinyl
alcohol-degrading
degrade
oxidized
films.
A
defined
minimal
medium
used
cultivate
assess
growth
45
days
cultivation,
most
effective
strains
further
cultivated
up
three
additional
generations
film
substrates
improve
LDPE
After
these
enrichments,
we
identified
strain
third
generation
Pseudomonas
sp.
Rh926
exhibited
significant
cell
reduced
mass
25%
30
days,
demonstrating
an
enhanced
capacity
degrading
Polymers,
Год журнала:
2024,
Номер
16(20), С. 2863 - 2863
Опубликована: Окт. 10, 2024
This
paper
presents
research
aimed
at
laboratory
experiments
on
static
and
cyclic
fatigue
testing
of
low-density
polyethylene
(LDPE)
recovered
from
post-consumer
waste
in
order
to
develop
a
recycled
product
exhibiting
satisfactory
mechanical
thermo-mechanical
properties.
The
results
the
tests
set
up
80%
maximum
load
tensile
demonstrated
functionality
material
developed
by
using
injection
molding
process.
There
was
no
significant
change
strength
under
tests.
Under
loading,
there
quasi-static
effect
manifested
plastic
deformation,
displacement
increased
significantly.
indicated
improvement
performance
LDPE
as
compared
virgin
material,
owing
high
quality
regranulates.
Fourier
Transform
Infrared
Spectroscopy
(FTIR)
conducted
analyze
functional
groups
samples.
analysis
showed
transmittance
spectra.
thermal
degradation
also
analyzed
Differential
Scanning
Calorimetry
(DSC)
Dynamic
Mechanical
Analysis
(DMA).
were
quite
similar
for
both
LDPE.
