Does Sorption to Mulch Film Increase Bioavailability of Two Model Pesticides for Earthworms and Bacteria in Soil?
Опубликована: Янв. 1, 2025
Язык: Английский
Exploring biodegradation limits of n-alkanes as polyethylene models using multi-omics approaches
The Science of The Total Environment,
Год журнала:
2025,
Номер
977, С. 179365 - 179365
Опубликована: Апрель 14, 2025
Polyethylene
(PE)
is
widely
regarded
as
non-biodegradable
in
natural
environments,
despite
reports
suggesting
partial
biotic
degradation.
Using
multi-omics
analysis,
this
study
investigated
the
biodegradation
mechanisms
of
n-alkanes-structural
analogs
PE-to
determine
threshold
carbon
number
PE
that
allows
for
environmental
biodegradation.
n-Alkanes
with
6-40
carbons
(C6-C40)
were
biodegraded
soil,
whereas
C44
and
not.
16S
rRNA
gene
amplicon
sequence
analysis
identified
distinct
microbial
communities
associated
non-degradable
compounds
(PEs
C44)
biodegradable
alkanes
(C6-C40).
Notably,
community
composition
C40
differed
from
those
below
C36.
Multi-omics
genera
Aeromicrobium,
Nocardia,
Nocardioides,
Rhodococcus,
Acinetobacter,
Fontimonas
key
degraders
n-alkanes
at
C36
below,
utilizing
alkane
hydroxylases
such
monooxygenase
(AlkB),
LC-alkane
Acinetobacter
(AlmA),
cytochrome
P450
(CYP153).
Conversely,
was
facilitated
by
taxa,
including
order
Acidimicrobiales
genera,
Acidovorax,
Sphingorhabdus,
Prosthecobacter,
Roseimicrobium
using
AlmA
CYP153-type
hydroxylases.
This
difference
may
explain
reduced
biodegradability
above
C40,
PE.
Язык: Английский
Enzymatic recycling and microbial upcycling for a circular plastics bioeconomy
Current Opinion in Biotechnology,
Год журнала:
2025,
Номер
93, С. 103307 - 103307
Опубликована: Май 1, 2025
Since
the
1950s,
plastics
have
become
commodity
materials
that
are
present
in
virtually
every
aspect
of
our
daily
lives.
However,
current
economic
model
is
fundamentally
linear,
with
less
than
10%
returning
to
value
chain
at
their
end
life.
In
recent
years,
efforts
been
dedicated
develop
new
technologies
can
change
this
a
circular
economy
for
plastics,
including
enzymatic
recycling
and
biological
upcycling
value-added
products.
Here,
we
will
review
advances
made
rapidly
evolving
field
discuss
how
further
development
these
could
contribute
reduce
share
postconsumer
plastic
waste
diverted
toward
landfilling
incineration.
Язык: Английский
Development and Evaluation of Mycelium-Based Composites from Agroforestry Residues: A Sustainable Approach to the Design of Innovative Building Materials
Buildings,
Год журнала:
2025,
Номер
15(11), С. 1764 - 1764
Опубликована: Май 22, 2025
This
study
explored
mycelium-based
composites
(MBCs)
as
a
sustainable
alternative
to
conventional
materials,
focusing
on
the
role
of
lignocellulosic
substrates
in
optimizing
their
physical,
mechanical,
and
biodegradability
properties.
It
also
addressed
valorization
agroforestry
by-products,
particularly
European
hazelnut
shells
(HZ)
radiata
pine
sawdust
(SW),
an
effort
reduce
waste
minimize
environmental
impacts.
The
MBCs
were
obtained
using
two
formulations
(HZ100
HZ75-SW25)
local
by-products
bound
together
with
natural
growth
fungal
mycelium
from
Ganoderma
sp.
We
examined
physical
mechanical
properties
these
novel
including
density,
shrinkage,
water
absorption,
hydrophobicity,
moduli
rupture
elasticity,
internal
bond
strength.
Additionally,
we
assessed
soil
estimate
time
required
for
complete
degradation.
results
clearly
indicated
differences
performance
between
HZ100
HZ75-SW25.
In
general,
HZ75-SW25
demonstrated
superior
compared
HZ100.
Water
absorption
was
low
both
cases,
suggesting
degree
hydrophobicity
surface.
biodegradation
that
fabricated
could
fully
decompose
less
than
one
year
when
buried
soil,
confirming
biocomposites
are
entirely
biodegradable.
Язык: Английский