Fermentation,
Journal Year:
2024,
Volume and Issue:
11(1), P. 3 - 3
Published: Dec. 24, 2024
This
study
investigates
the
potential
of
sequential
solid-state
and
submerged
fermentation
(SeqF)
to
enhance
lipase
production
by
Yarrowia
lipolytica
using
by-products
from
palm
oil
chain.
Palm
fiber
deodorizer
distillate
(PODD)
were
utilized
as
substrates
in
both
stages.
Solid-state
(SSF)
yielded
significant
activity
when
was
used
alone
(1.55
U/g
48
h),
while
(SmF)
showed
improved
enzymatic
with
combination
PODD
(1171
U/L
72
h).
The
integration
SSF
SmF
SeqF
achieved
superior
activities,
reaching
4464.5
U/L,
an
8.3-fold
increase
compared
alone,
Erlenmeyer
flasks.
SeqF-lyophilized
biocatalysts
experiments
better
hydrolytic
(131
U/g)
best
conditions
reproduced
a
4
L
bioreactor
(33
U/g).
biocatalyst
employed
esterification
reactions
synthesize
mono-
diacylglycerols,
achieving
24.3%
conversion
rate.
highlights
promising
sustainable
approach
for
valorizing
agro-industrial
residues,
contributing
advancing
circular
bioeconomy
initiatives.
Bioresource Technology Reports,
Journal Year:
2023,
Volume and Issue:
24, P. 101610 - 101610
Published: Sept. 9, 2023
The
incessant
dumping
of
solid
waste
has
been
an
issue
global
attention,
causing
significant
risks
to
the
environment
and
human
health.
biodegradable
organic
components
materials
pose
a
greater
opportunity
in
production
beneficial
products.
Therefore,
adequate
management
is
key
mitigate
environmental
pollution
promotes
its
reuse
as
feedstock
formation
valuable
Methods
such
pyrolysis,
gasification,
etc.
are
employed
for
valorization
waste.
However,
these
techniques
inept
treatment
due
release
gaseous
pollutants,
consumption
high
energy,
among
others.
Biorefinery
green
sustainable
technology
breakdown
into
biobased
products
biofertilizer,
bioethanol,
biohydrogen,
bioelectricity,
biogas,
bioplastics,
acids,
bioenzymes.
This
review,
therefore,
provides
understandings
on
biological
technologies
useful
Cleaner Chemical Engineering,
Journal Year:
2023,
Volume and Issue:
6, P. 100112 - 100112
Published: June 1, 2023
Yeasts
are
used
to
produce
several
bioproducts,
including
functional
bio-molecules,
enzymes,
biofuels,
lipids,
pigments,
vitamins,
organic
acids,
and
other
value-added
bioproducts.
When
the
production
of
bioproduct
occurs
intracellularly,
methods
disruption
traditionally
(mechanical
non-mechanical),
which
promote
release
but
also
total
degradation
cell
wall
with
consequent
loss
yeast
viability.
As
an
alternative,
permeabilization
can
be
through
use
external
agents
(chemical
or
physical),
form
pores
that
increase
transfer
product
membrane,
facilitating
separation
material,
increasing
metabolites
acting
as
effective
way
maintaining
cellular
viability
-
at
least
partially.
In
this
review,
we
summarize
advances
in
compared
traditional
rupture.
We
present
available
for
evaluating
yeast.
Fermentation,
Journal Year:
2023,
Volume and Issue:
9(9), P. 819 - 819
Published: Sept. 7, 2023
The
use
of
yeasts
for
the
production
proteases
has
increased
in
demand
recent
years.
Y.
lipolytica
been
reported
as
a
strain
with
high
yields
protease
production.
This
work
aimed
to
evaluate
impact
pH
and
temperature
on
using
solid-state
fermentation
(SSF).
Soybean,
canola
meal,
cottonseed
sesame
meal
wastes
were
used
nutrient
sources
at
seven
levels
(4,
5,
6,
7,
8,
9,
10)
five
temperatures
(25,
30,
35,
40,
45
°C).
waste
source
optimal
conditions
maximum
enzyme
(EP)
obtained
by
Box–Benhken
design.
results
revealed
that
30
°C,
48
h
cultivation
period,
showed
best
EP
188.75
U/L,
followed
soybean
117.07
66.71
lowest
production,
reaching
88.5
U/L
up
35
°C.
factor
exhibited
greatest
effect
biotechnological
economic
potential
enzymes
is
highlighted.
Frontiers in Sustainable Food Systems,
Journal Year:
2023,
Volume and Issue:
7
Published: March 23, 2023
The
demand
for
dyes
from
natural
sources
to
substitute
synthetic
application
in
the
food
industry
has
been
continuously
increasing
due
some
being
associated
with
several
problems,
including
hypersensitivity,
carcinogenesis,
and
negative
environmental
impacts.
Furthermore,
(like
pigments)
are
generally
regarded
by
consumer
as
safer
or
fewer
side
effects—a
fact
that
requires
in-depth
investigation—,
which
increases
commercial
interest
such
products.
In
this
sense,
great
focus
given
biotechnological
potential
of
Monascus
sp.
produce
red,
orange,
yellow
pigments
using
different
types
fermentation
process
(submerged
solid-state
fermentation),
substrates,
parameters
(temperature,
pH,
agitation,
aeration,
etc.),
aiming
at
optimizing
reducing
costs
pigment
production.
general,
shown
stability
neutral
basic
elevated
temperatures
a
few
hours,
metallic
ions
while
not
showing
acidic
many
presence
light.
Applications
colorant
function
foods
(candies,
bread,
yogurt,
cheese,
beer,
meat
products)
reported
improvement
color
aspect
sensory
analysis.
still
seems
promising
incipient,
demonstrating
it
needs
be
further
studied,
mainly
concerning
vivo
systems
(inside
food)
where
adverse
conditions
combined.
Regulatory
issues
heterogeneous
around
world,
creates
difficulties
expand
production
commercialization
but
also
demonstrates
need
studies
confirm
its
safety.
mini-review
presents
potential,
strategies,
challenges
application.
Cleaner Chemical Engineering,
Journal Year:
2023,
Volume and Issue:
7, P. 100109 - 100109
Published: June 4, 2023
Poly(ethylene
terephthalate)
(PET)
is
a
widely
used
polyester
with
several
applications,
including
offshore
platforms
and
mooring
lines
of
the
Oil
&
Gas
industry.
Due
to
widespread
use
PET
growing
concern
about
its
environmental
impact,
biotechnology
emerges
as
potential
solution
mitigate
this
problem.
This
work
aims
evaluate,
for
first
time,
Y.
lipolytica
IMUFRJ
50682
in
biodegradation
from
waste
platforms.
In
study,
by
yeast
Yarrowia
was
investigated
through
submerged
cultivation
or
solid-state
fermentation.
After
fermentation
complete,
sampled
culture
medium
evidenced
an
increase
transmittance
areas
related
ester
group
detected
Attenuated
Total
Reflectance
Fourier-Transform
Infrared
Spectroscopy
(ATR-FTIR)
both
strategies
all
media
tested.
Besides,
crystallinity
increased
79%
72%
after
using
CSL-G
+
DMSO
(2%
corn
steep
liquor,
2%
glycerol,
5%
Dimethyl
sulfoxide)
fermentation,
respectively.
Scanning
electron
microscopy
revealed
formation
scratches
erosions
on
polymer's
surface
microbial
cultivation.
The
presence
monomer,
terephthalic
acid
(TPA)
(up
142
µmol
L
−
1),
some
intermediates,
such
bis(2-hydroxyethyl)
terephthalate
(BHET)
mono-(hydroxyethyl)
(MHET)
growth
proves
that
polymer
being
degraded.
These
results
suggest
good
biotechnological
depolymerization
lines.
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(10), P. e20735 - e20735
Published: Oct. 1, 2023
This
study
presents
an
approach
that
utilizes
low-value
agro-industrial
by-products
as
culture
media
for
producing
high-value
proteolytic
enzymes.
The
objective
was
to
assess
the
impact
of
six
on
production
Bacillus
subtilis
strains,
confirmed
through
comprehensive
biochemical,
morphological,
and
molecular
analyses,
were
isolated
identified.
Enzymatic
activity
evaluated
using
azocasein
casein
substrates,
sizes
purified
extract
components
determined.
results
demonstrated
bacteria
exhibited
higher
metabolic
enzymatic
when
cultured
in
containing
1
%
soybean
oil
cake
or
feather
meal.
Furthermore,
concentrations
found
hinder
protease.
Optimal
protease
synthesis
meal
achieved
after
4
days,
both
methods.
Semi-purification
obtained
from
resulted
a
significant
increase
azocaseinolytic
caseinolytic
activities.
Gel
electrophoresis
analysis
revealed
multiple
bands
fractions
with
highest
cake,
indicating
presence
various
enzymes
varying
sizes.
These
findings
highlight
potential
utilizing
efficient
sustainable
economically
viable
promising
applications
industries.