Bioconversion of feather and production of alkaline protease for detergent and dehairing applications
Matthews Mokoba,
No information about this author
Amare Gessesse
No information about this author
Research Square (Research Square),
Journal Year:
2025,
Volume and Issue:
unknown
Published: March 3, 2025
Abstract
Annually
the
poultry
industry
releases
millions
of
tons
feather
waste
into
environment.
With
a
protein
content
91%,
offers
huge
potential
to
serve
as
an
animal
feed
supplement.
However,
keratin,
main
component
feather,
is
highly
resistant
hydrolysis
by
and
plant
proteases.
The
use
physicochemical
methods
hydrolyze
in
addition
being
expensive,
cause
decomposition
some
amino
acids.
Thus,
microbial
bioconversion
attractive
option
for
production
useful
products.
In
this
study,
alkaliphilic
degrading
strain,
Bacillus
pseudofirmus
BCC026
was
isolated
from
Makgadikgadi
salt
pan
Botswana.
When
grown
liquid
culture
containing
sole
source
nitrogen,
it
resulted
complete
solubilization
within
48
72
h.
organism
also
produced
alkaline
protease,
soluble
proteins,
peptides/amino
acids
medium.
enzyme
showed
optimum
activity
pH
range
7.5–10.5
at
70°C.
It
active
stable
commercial
detergents
removal
stain
cotton
fabrics.
effective
removing
hair
goatskin
indicating
its
dehairing
application.
Microbial
growth
substrates
are
known
account
significant
proportion
cost
industrial
enzymes.
Since
protease
using
cheap
readily
available
resource,
could
be
significantly
reduced.
Moreover,
after
recovery,
proteins
filtrate
used
different
applications.
Language: Английский
Biodegradation of different keratin waste by newly isolated thermophilic Brevibacillus gelatini LD5: Insights into the degradation mechanism based on genomic analysis and keratin structural changes
Xing‐Xing Fan,
No information about this author
Yicen Lin,
No information about this author
Shaobin Wang
No information about this author
et al.
International Journal of Biological Macromolecules,
Journal Year:
2024,
Volume and Issue:
unknown, P. 137757 - 137757
Published: Nov. 1, 2024
Language: Английский
Bioconversion of Agro-Industrial Byproducts Using Bacillus sp. CL18: Production of Feather Hydrolysates for Development of Bioactive Polymeric Nanofibers
Fermentation,
Journal Year:
2024,
Volume and Issue:
10(12), P. 615 - 615
Published: Nov. 30, 2024
Microbial
fermentation
represents
an
interesting
strategy
for
the
management
and
valorization
of
agro-industrial
byproducts.
In
this
study,
proteolytic
strain
Bacillus
sp.
CL18
was
used
to
produce
bioactive
hydrolysates
during
submerged
cultivation
with
various
protein-containing
substrates,
including
byproducts
from
poultry
(feathers),
cheese
(whey),
fish
(scales),
vegetable
oil
(soybean
meal)
industries.
The
feather
(BFHs)
showing
high
antioxidant
activity
were
incorporated
in
poly(vinyl
alcohol)
(PVA)
poly-ε-caprolactone
(PCL)
nanofibers
by
electrospinning
technique.
PVA
containing
5%
BFH
reached
activities
38.7%
76.3%
DPPH
ABTS
assays,
respectively.
Otherwise,
PCL
showed
49.6%
55.0%
scavenging
radicals,
Scanning
electron
microscopy
analysis
revealed
that
had
average
diameter
282
960
nm,
Moreover,
results
thermal
infrared
spectroscopy
incorporation
caused
no
significant
modification
properties
polymeric
matrix.
bioconversion
feathers
byproduct.
Furthermore,
effective
validation
biological
suggest
application
these
materials
as
coatings
packaging.
Language: Английский