Characterization of polystyrene-degrading bacteria isolated from plastic processing plants
Abstract
In
this
study,
the
occurrence
of
most
common
types
bacteria
and
fungi
on
surfaces
production
lines,
raw
materials
finished
products
in
plastics
processing
plants
was
investigated.
addition,
ability
selected
bacterial
strains
to
form
biofilms
degrade
PS
determined.
The
examined
mainly
contained
aerobic
mesophilic
(42.0%
samples),
followed
by
moulds
(30.0%)
representatives
genera
Bacillus
(28.3%)
Staphylococcus
(19.9%).
Growth
solid
medium
with
polystyrene
confirmed
63
(63.4%)
96
strains,
but
only
3
(3.0%)
them
were
able
a
clear
zone
around
colonies.
highest
weight
loss
observed
presence
strains.
degree
degradation
after
30
60
days
ranged
from
0.12–0.78%
0.21–2.15%,
respectively.
number
living
cells
lowest
for
Gram-negative
Burkholderia
Moraxella
some
Micrococcus
Fourier
transform
infrared
spectroscopy
revealed
differences
ratios
vibrational
bands
exposure
although
no
oxygen-containing
functional
groups
surface
samples.
average
contact
angle
values
exposed
tested
decreased
80.55
±
0.39°
73.64
0.45°
incubation.
Some
isolated
plastic
show
potential
more
intensive
such
materials,
which
could
have
an
impact
quality
shelf
life
products.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Июнь 13, 2024
Язык: Английский