Process Safety and Environmental Protection,
Journal Year:
2024,
Volume and Issue:
186, P. 833 - 849
Published: April 5, 2024
Plastic
has
an
extended
lifespan
in
the
environment,
hence
presenting
enduring
hazard
to
both
humans
and
diverse
organisms,
particularly
those
inhabiting
terrestrial
aquatic
ecosystems.
Conventional
techniques
for
breaking
down
waste
made
of
plastic,
such
as
dumping
it
landfills
using
chemical
procedures,
have
been
proven
be
disadvantageous
a
substantial
detrimental
impact
on
environmental
sustainability.
Plastics
exhibit
high
resistance
decomposition
when
left
their
own
devices.
Polymer
degradation
by
insects
currently
no
practical
applicability.
The
concept
degrading
plastics
is
widely
recognized,
although
precise
manner
which
occurs
remains
incompletely
understood.
Moreover,
advantages
utilizing
insect
larvae
involve
low
expenses
absence
secondary
pollution.
current
review
offers
extensive
overview
latest
research
papers
from
2016
2022
that
specifically
explore
disintegration
plastic
microorganisms.
aim
this
provide
insight
into
processes
involved
microorganisms,
while
also
emphasizing
advanced
viewpoints
possible
uses
biodegradation,
well
challenges
future
prospects
field.
Frontiers of Environmental Science & Engineering,
Journal Year:
2024,
Volume and Issue:
18(6)
Published: April 30, 2024
Abstract
Insects
damaging
and
penetrating
plastic
packaged
materials
has
been
reported
since
the
1950s.
Radical
innovation
breakthroughs
of
biodegradation
have
initiated
discovery
plastics
by
Tenebrio
molitor
larvae
in
2015
followed
Galleria
mellonella
2017.
Here
we
review
updated
studies
on
insect-mediated
plastics.
Plastic
insect
larvae,
mainly
some
species
darkling
beetles
(Tenebrionidae)
pyralid
moths
(Pyralidae)
is
currently
a
highly
active
potentially
transformative
area
research.
Over
past
eight
years,
publications
increased
explosively,
including
discoveries
ability
different
to
biodegrade
plastics,
performance,
contribution
host
microbiomes,
impacts
polymer
types
their
physic-chemical
properties,
responsible
enzymes
secreted
gut
microbes.
To
date,
almost
all
major
polyethylene
(PE),
polypropylene
(PP),
polyvinyl
chloride
(PVC),
terephthalate
(PET),
polyurethane
(PUR),
polystyrene
(PS)
can
be
biodegraded
T.
ten
other
representing
Tenebrionidae
Pyralidae
families.
The
processes
are
symbiotic
reactions
or
performed
synergistic
efforts
both
gut-microbes
rapidly
depolymerize
with
hourly
half-lives.
digestive
ezymens
bioreagents
screted
insects
play
an
essential
role
plasatic
certain
New
research
itself,
transcriptomes,
proteomes
metabolomes
evaluated
mechanisms
insects.
We
conclude
this
discussing
future
perspectives
Insects,
Journal Year:
2025,
Volume and Issue:
16(2), P. 165 - 165
Published: Feb. 5, 2025
Plastic
pollution
is
one
of
the
biggest
current
global
threats
to
environment
given
that
petroleum-based
plastic
recalcitrant
and
can
stay
in
for
decades,
even
centuries,
depending
on
specific
type.
Since
less
than
10%
all
made
recycled,
other
solutions
(such
as
incineration
or
landfill
storage)
are
pollutant
methods,
new,
environmentally
friendly
needed.
In
this
regard,
latest
biotechnological
discovery
topic
capability
insect
larvae
use
polymers
carbon
feedstock.
This
present
review
describes
most
relevant
information
capable
degrading
plastic,
mainly
Galleria
mellonella
(Fabricius,
1798),
Tenebrio
molitor
(Linnaeus,
1758),
Zophobas
atratus
1776),
also
adds
new
about
commonly
studied
“plastivore”
insects
such
termites.
covers
literature
from
very
first
work
describing
degradation
by
published
2014
way
research
available
(till
June
2024),
focusing
identification
a
wide
variety
plastic-degrading
microorganisms
isolated
guts
understanding
potential
molecular
mechanisms
take
place.
It
discoveries,
which
include
novel
enzymes
waxworm
saliva.
Frontiers in Immunology,
Journal Year:
2023,
Volume and Issue:
14
Published: Dec. 18, 2023
The
gut
is
a
crucial
organ
in
insect
defense
against
various
pathogens
and
harmful
substances
their
environment
diet.
Distinct
compartments
possess
unique
functionalities
contributing
to
physiological
processes,
including
immunity.
gut’s
cellular
composition
vital
for
humoral
peritrophic
membrane,
mucus
layer,
lumen,
microvilli,
cells
provide
essential
support
activating
regulating
immune
mechanisms.
These
components
also
secrete
molecules
enzymes
that
are
imperative
activities.
Additionally,
the
microbiota
initiates
signaling
pathways
produces
vitamins
minerals
help
maintain
homeostasis.
activated
within
when
insects
ingest
or
hazardous
materials.
pathway
induced
depends
on
infection
pathogen
type;
include
deficiency
(imd),
Toll,
JAK/STAT,
Duox-ROS,
JNK/FOXO
regulatory
pathways.
produce
different
antimicrobial
peptides
(AMPs)
Furthermore,
mechanisms
regulate
recovery
following
infection.
Although
some
questions
regarding
immunity
species
require
additional
study,
this
review
provides
insights
into
structure
composition,
commensal
microorganism
roles
Drosophila
melanogaster
Tenebrio
molitor
life
cycles,
involved
systems,
post-infection
through
Insect Science,
Journal Year:
2024,
Volume and Issue:
unknown
Published: July 11, 2024
Abstract
The
ubiquitous
incorporation
of
plastics
into
daily
life,
coupled
with
inefficient
recycling
practices,
has
resulted
in
the
accumulation
millions
metric
tons
plastic
waste,
that
poses
a
serious
threat
to
Earth's
sustainability.
Plastic
pollution,
global
problem,
disrupts
ecological
balance
and
endangers
various
life
forms.
Efforts
combat
pollution
are
underway,
promising
avenue
being
biological
degradation
facilitated
by
certain
insects
their
symbiotic
gut
microorganisms,
particularly
bacteria.
This
review
consolidates
existing
knowledge
on
influence
microbiota.
Additionally,
it
delves
potential
mechanisms
employed
symbiosis
bacteria,
exploring
bioconversion
waste
value‐added
biodegradable
polymers
through
mineralization.
These
insights
hold
significant
promise
for
bio‐upcycling
opening
new
horizons
future
biomanufacturing
high‐value
chemicals
from
plastic‐derived
compounds.
Finally,
we
weigh
pros
cons
research
endeavors
related
bioprospection
plastic‐degrading
bacteria
underexplored
insect
species.
We
also
underscore
importance
bioengineering
depolymerases
novel
characteristics,
aiming
application
remediation
valorization
plastics.
Polymers,
Journal Year:
2023,
Volume and Issue:
15(15), P. 3212 - 3212
Published: July 28, 2023
In
this
study
we
evaluated
the
potential
use
of
hazelnut
shell
powder
in
production
a
composite
material.
Polystyrene
was
used
as
polymer
matrix.
This
work
presents
results
modifying
particles
to
create
polystyrene
on
their
surfaces.
Modification
filler
increased
its
contact
angle
wetted
with
water
from
θ=60.16±1.03°
θ=87.02±1.10°.
Composite
materials
containing
10
50
wt.%
modified
were
prepared
and
studied.
As
result
experiments,
it
found
that
composites
have
optimal
physical,
mechanical,
operational
properties
at
following
ratio:
60–80
wt.%,
20–40
wt.%.
If
introduction
more
than
90
flexural
strength
Vickers
hardness
quite
low
load
200
g,
accordingly,
durability
such
not
satisfactory.
These
samples
are
characterized
by
small
percentages
shells;
therefore,
resulting
material
will
be
pale,
unsaturated
color.
The
upper
limit
working
temperature
range
for
lies
between
265.0–376.0
°C,
depending
percentage
filling.
