Processes,
Journal Year:
2024,
Volume and Issue:
12(11), P. 2422 - 2422
Published: Nov. 2, 2024
Tryptophan
is
an
essential
aromatic
amino
acid
widely
used
in
the
pharmaceutical,
agricultural,
and
feed
industries.
Microbial
fermentation,
mainly
using
Escherichia
coli,
has
become
preferred
method
for
its
production
due
to
sustainability
lower
costs.
Optimizing
tryptophan
requires
careful
control
of
various
fermentation
parameters,
including
nutrients,
pH,
temperature,
dissolved
oxygen
(DO)
levels.
Glucose,
as
primary
carbon
source,
must
be
fed
at
controlled
rates
avoid
metabolic
overflow,
which
leads
by-product
accumulation
reduced
efficiency.
Nitrogen
sources,
both
organic
(such
yeast
extract)
inorganic
(like
ammonium),
influence
biomass
growth
yield,
with
ammonium
levels
requiring
regulation
toxic
accumulation.
Phosphate
enhances
but
can
lead
formation
if
excessively.
pH
another
critical
factor,
optimal
range
between
6.5
7.2,
where
enzyme
activity
maximized.
Temperature
promotes
production,
particularly
30
°C
37
°C.
High
DO
increase
titers
by
boosting
pentose
phosphate
pathway
reducing
by-products
like
acetate.
Furthermore,
surfactants
supplements
such
betaine
monohydrate
citrate
help
alleviate
osmotic
stress
enhance
precursor
availability,
improving
Careful
manipulation
these
parameters
allows
high-density
cell
cultures
significant
accumulation,
making
microbial
competitive
large-scale
production.
Fermentation,
Journal Year:
2025,
Volume and Issue:
11(3), P. 110 - 110
Published: Feb. 25, 2025
To
diversify
fermented
plant-based
products,
vegetables
can
be
with
fruits.
This
study
aimed
to
evaluate
the
effect
of
spontaneous
fermentation
on
amino
acid
nutritional
profile
sliced
carrot
(Daucus
carota)
and
celeriac
(Apium
graveolens),
without
addition
apple
(Malus
domestica).
Lactic
bacteria
rapidly
lowered
pH,
ensuring
product’s
microbiological
stability
safety.
The
apples
root
had
a
beneficial
maintaining
high
number
active
lactic
bacteria.
process
significantly
influenced
composition,
reducing
content
acidic
acids
(aspartic
glutamic
acid)
while
increasing
levels
several
essential
acids.
Leucine
was
found
limiting
in
all
variants,
although
its
increased
during
fermentation.
Essential
Amino
Acid
Index
(EAAI)
products
generally
higher
variants
(carrot
=
1.13,
1.03).
results
indicate
that
enhances
protein
quality
contributes
development
nutritionally
valuable,
microbiologically
safe
foods.
supports
sustainable
dietary
practices
by
utilizing
locally
available
create
innovative
products.
Caderno Pedagógico,
Journal Year:
2025,
Volume and Issue:
22(5), P. e14990 - e14990
Published: March 24, 2025
The
search
for
more
sustainable
agriculture
has
stimulated
interest
in
organic
fertilizers.
rising
costs
of
chemical
fertilizers
and
the
many
benefits
identified
by
use
biofertilizers
have
motivated
this
trend.
However,
there
are
options
on
market
assessing
impact
each
yield
crop
development
is
therefore
a
key
aspect
making
best
choice.
Vorax®
Biostimulant
composed
glutamic
acid,
source
carbohydrate
absorbed
plant.
Therefore,
aim
work
was
to
evaluate
biostimulant,
extracted
from
Corynebacterium
glutamicum,
corn
off-season.
Two
experiments
were
carried
out
using
biofertilizer
different
combinations
dose,
number
applications
phenological
stages
randomized
block
design
with
four
replications.
It
found
that
when
applied
at
V8
lower
doses,
maximum
two
applications,
(non-significant)
gain
ear
weight.
International Journal of Phytoremediation,
Journal Year:
2025,
Volume and Issue:
unknown, P. 1 - 9
Published: March 4, 2025
This
study
investigated
the
impacts
of
exogenous
amino
acid
supplementation
on
uptake,
translocation,
and
accumulation
yttrium
(Y)
in
tomato
plants
(Solanum
lycopersicum).
To
understand
how
acids
enhance
nutrient
uptake
plant
growth
by
using
Hoagland
solution.
The
results
indicated
that
combination
Y
with
glutamic
(Y
+
Glu)
significantly
increased
concentration
leaves
to
28.5
±
1.42
µg
g-1,
while
histidine
His)
resulted
a
markedly
lower
2.7
0.06
g-1.
Notably,
proved
be
particularly
effective
enhancing
xylem
sap.
control
exhibited
higher
sap
flow
rate
0.27
0.008
g
h-1,
which
was
greater
than
those
treated
(p
<
0.05).
Histidine
levels
were
elevated
His
treatment,
reaching
194.78
13.79
μmol
L-1,
tryptophan
aspartic
showed
their
highest
concentrations
respective
treatments
at
109.92
14.43
L-1
212.95
13.65
L-1.
These
findings
demonstrated
substantially
enhanced
phytoextraction
plants,
through
application
acid.
Further
exploration
into
molecular
mechanisms
governing
complexation
transport
within
phytoremediation
is
needed.
Microbiology Spectrum,
Journal Year:
2023,
Volume and Issue:
11(5)
Published: Sept. 14, 2023
ABSTRACT
The
yeast
strain
Yarrowia
lipolytica
IPS
21
was
tested
for
its
ability
to
degrade
potentially
toxic
chrome-tanned
leather
shavings
(CTLS)
in
a
liquid
environment.
Biological
and
chemical
parameters
were
monitored
during
48-h
period
of
biotransformation
the
protein-rich
waste.
CTLS
added
at
concentration
0.1–4%
(wt/wt)
modified
YPG
medium
(15
g
L
−1
extract
5
NaCl).
Biodegradation
bioconversion
performed
one-step
process.
It
found
that
higher
degradation
rate
depended
on
activity
proteases
pH
medium,
but
not
initial
inoculum
ratio
dehydrogenase.
highest
efficiency
process
obtained
4%
day
2
(degradation
58–67%,
biomass
production
2.11–2.20
,
protease
312
U
mg
protein,
9.20).
Our
results
showed
total
chromium
probably
transported
across
cytoplasmic
membrane
Y.
IPS21
(III)
oxidized
(VI).
phytotoxicity
selected
amino
acid
supernatants
[2.5%
(vol/vol)]
after
had
stimulating
effect
plants
tested.
root
elongation
29–28%
than
reference
samples.
This
result
makes
potential
candidate
safely
converting
wastes
into
valuable
products
without
enzyme
isolation,
e.g.,
fertilizers.
IMPORTANCE
Enzyme
technologies
have
greatest
practical
relevance
environmental
trends.
Overcoming
barrier
high
cost
carbon
substrates
used
is
main
challenge
these
methods.
huge
use
extracellular
species
or
acids
various
industries
indicates
need
extension
basic
research
waste
as
source
this
yeast.
experiments
demonstrated
it
possible
single-step
produce
high-value
supernatant
having
an
isolated
enzyme.
In
our
study,
we
show
2.5%
(vol/vol)
from
system
provide
information
factors
migration
chromium.
Food Bioscience,
Journal Year:
2024,
Volume and Issue:
59, P. 103933 - 103933
Published: March 28, 2024
Carrot
juice
is
a
rich
source
of
vitamins,
carotenes,
minerals,
and
other
micronutrients
with
positive
health
effects.
The
´Kamaran
F1´,
´Baltimore
´Naval
´Niagara
´Flakkese
2
–
Vita
longa´
varieties
were
included
in
the
study
conducted
during
years
2021–2022.
examined
influence
selenization
on
selenium
level
additionally
also
qualitative
quantitative
indicators
carrot
juice.
For
total
50
mg/L
sodium
selenate
was
applied.
process
making
involved
cleaning
washing
roots,
crushing,
pressing
them,
pasteurizing
for
5
min
at
85
°C,
aseptic
filling.
In
addition
to
content,
parameters
(1
-
root
average
weight,
roots
yield,
yield)
(carotenoids,
sugars,
acids,
soluble
solids)
monitored.
Our
findings
revealed
higher
that
followed
this
processing
method.
content
Se
fresh
without
fortification
14
μg/L,
while
fortified
variant
186
μg/L
(13-fold
increase).
pasteurized
11-fold
increase
found
variant.
This
indicates
form
thermostable,
meaning
retains
its
composition,
adding
additional
value.
Based
assessed
application
recommended
dose
did
not
significantly
affect
height
yields,
which
an
important
economic
criterion.
Temas Agrarios,
Journal Year:
2024,
Volume and Issue:
29(1), P. 113 - 125
Published: Sept. 3, 2024
El
crecimiento
exponencial
de
la
población
mundial
hace
necesario
buscar
alternativas
para
incrementar
producción
alimentos.
Los
aminoácidos
se
utilizan
ampliamente
mejorar
productividad
los
cultivos,
sin
embargo,
en
el
cultivo
remolacha
roja
no
está
generalizado
su
uso.
Por
lo
que
objetivo
investigación
fue
evaluar
efecto
aplicación
foliar
una
solución
índices
fisiológicos
y
roja.
Se
diseñó
un
experimento
bloques
al
azar
con
cinco
tratamientos
seis
réplicas.
Fueron
evaluadas
cuatro
concentraciones
VA1
(0,3
ml
L-1),
VA2(0,6
VA3(0,9
VA4(1,2
L-1)
tratamiento
control
VA0
(0).
evaluó
biomasa
seca
las
plantas,
área
foliar,
tasas
crecimiento,
contenido
clorofilas
totales,
temperatura
hojas,
relativo
agua
rendimiento
agrícola.
resultados
mostraron
menor
cuando
usó
incremento
significativo
plantas
todas
sus
variantes.
Las
clorofilas,
así
como
también
fueron
beneficiadas
por
aminoácidos.
La
mayor
eficiencia
productiva
obtuvo
0,6;
0,9
1,2
L-1
mejor
respuesta
dosis
L-1.
es
alternativa
Sustainability,
Journal Year:
2023,
Volume and Issue:
15(23), P. 16328 - 16328
Published: Nov. 27, 2023
The
frequent
use
of
chemical
fertilizers
in
agricultural
practices
has
developed
into
a
serious
environmental
concern
which
urgently
needs
solution
to
restrain
their
systems.
Hence,
there
is
an
urgent
need
investigate
potential
organic
from
various
natural
resources
decrease
the
fertilizers.
Seaweed
among
with
sustainability
value.
Our
previous
work
shown
effectiveness
seaweed
fertilizer
for
increasing
plant
growth
and
soil
beneficial
microbiota.
This
study
aims
evaluate
functional
genes
present
rice
plants
treated
fertilization.
It
involves
amendments
reduced
concentrations
three
groups:
CF
(only
fertilizer),
CFSF1
(50%
dose
+
1
ton/ha),
CFSF2
2
ton/ha).
supplemented
were
taller
faster
mature
compared
CF.
In
addition,
primary
macronutrients
nitrogen
(N),
phosphorus
(P),
potassium
(K)
also
significantly
higher
SF.
findings
showed
increased
ammonia-oxidizing
archaea
Crenarchaeota
abundance
SF
treatments.
PICRUSt
analyses
indicated
enriched
proteins
relation
amino
acid,
nucleotide,
protein,
carbohydrate
metabolism
based
on
KEGG,
BioCyc,
PFAM
databases.
current
outcomes
enhanced
our
understanding
regarding
importance
microbial
community
quality.
Furthermore,
supplementation
improvement
fertility,
increases
productivity.
Journal of the Saudi Society of Agricultural Sciences,
Journal Year:
2024,
Volume and Issue:
23(8), P. 521 - 532
Published: June 15, 2024
Tuk-Tuk
and
Sanren
F1
are
two
shallot
cultivars
that
exhibit
divergent
bulb
multiplication
traits.
typically
produces
one
bulb.
In
contrast,
tends
to
produce
multiple
bulbs.
This
study
used
metabolomics
during
development
harvesting.
The
objective
of
the
was
identify
metabolites
might
affect
shallot.
initial
samples
both
were
collected
bulbs
developmental
stage
i.e,
11
weeks
after
sowing
(WAS),
while
second
sample
gathered
harvesting
(16
WAS).
Proton
Nuclear
Magnetic
Resonance
(1H
NMR)
analysis
applied
freeze-dried
for
analysis.
Multivariate
utilizing
Principal
Component
Analysis
(PCA)
followed
by
Orthogonal
Projections
Discriminant
(OPLS-DA)
conducted
using
MetaboAnalyst
5.0.
1H
NMR
spectra
revealed
28
putative
metabolites.
All
data,
including
harvesting,
not
clearly
separated
PCA.
However
in
stage,
observed
have
higher
histidine
than
Tuk-Tuk,
indicating
involvement
kinase
signaling
system
multiplication.
Hence,
known
its
role
cytokinin
which
contributing
cell
division
regulation
may
Four
i.e.,
sucrose,
arginine,
acetic
acid,
myricetin
F1,
a
cultivar
single
Valine,
phenylalanine,
formic
α-linolenic
acid
considerably
There
also
several
with
greater
relative
concentrations
others.
Though
all
those
significantly
differed
amongst
examined
cultivars,
it
thought
they
had
an
impact
on
development.
It
would
be
great
interest
ascertain
whether
detected
at
levels
potential
function
as
chemical
markers
distinguishing
capable
producing