International Journal of Molecular Sciences,
Journal Year:
2022,
Volume and Issue:
23(20), P. 12484 - 12484
Published: Oct. 18, 2022
Recently,
the
treatment
of
effluent
by
agricultural
waste
biomass
has
significantly
attracted
wide
interest
among
researchers
due
to
its
availability,
efficacy,
and
low
cost.
The
removal
toxic
Remazol
Brilliant
Blue-R
(RBBR)
from
aqueous
solutions
using
HNO3-treated
Juglans
nigra
(walnut)
shell
carbon
as
an
adsorbent
been
examined
under
various
experimental
conditions,
such
initial
pH,
adsorbate
concentration,
dosage,
particle
size,
agitation
speed,
type
electrolyte.
experiments
are
designed
achieve
maximum
dye
efficiency
response
surface
methodology
(RSM).
optimum
size
were
found
be
1.5,
7
g
L-1,
64
μm,
respectively
for
decolorization
(98.24%).
prepared
was
characterized
Brunauer-Emmett-Teller
(BET)
area,
pore
volume,
zero-point
charge
(pHzpc),
Fourier
transform
infrared
spectroscopy
(FT-IR),
field
emission
scanning
electron
microscopy/energy
dispersive
X-ray
(FE-SEM/EDX),
diffraction
(XRD),
thermogravimetric
analysis
(TGA).
Based
on
fitting
data
with
models,
isotherm
kinetic
mechanism
more
appropriate
Langmuir
pseudo-second-order
kinetics.
adsorption
can
described
intra-particle
diffusion
model,
Bangham,
Boyd
plots.
overall
rate
is
controlled
external
film
molecules.
monolayer
capacity,
(qmax)
54.38
mg
g-1
RBBR
dye,
obtained
at
a
temperature
301
K.
From
thermodynamic
standpoint,
process
endothermic,
spontaneous,
chemisorption
favored
high
temperatures.
Desorption
studies
conducted
desorbing
reagents
in
runs
desorption
(61.78%
third
run)
solvent
methanol.
Reusability
demonstrated
that
effective
up
three
operation.
investigation
outcomes
concluded
walnut
activated
(WSBAC)
cost-effective,
eco-friendly,
bio-sustainable
material
used
synthetic
media.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: July 2, 2024
Abstract
The
dyeing
process
of
textile
materials
is
inherently
intricate,
influenced
by
a
myriad
factors,
including
dye
concentration,
time,
pH
level,
temperature,
type
dye,
fiber
composition,
mechanical
agitation,
salt
mordants,
fixatives,
water
quality,
method,
and
pre-treatment
processes.
intricacy
achieving
optimal
settings
during
poses
significant
challenge.
In
response,
this
study
introduces
novel
algorithmic
approach
that
integrates
response
surface
methodology
(RSM),
artificial
neural
network
(ANN),
genetic
algorithm
(GA)
techniques
for
the
precise
fine-tuning
pH,
temperature.
primary
focus
on
quantifying
color
strength,
represented
as
K/S,
variable
in
polyamide
6
woolen
fabric,
utilizing
plum-tree
leaves
sustainable
source.
Results
indicate
ANN
(R
2
~
1)
performs
much
better
than
RSM
>
0.92).
optimization
results,
employing
ANN-GA
integration,
concentration
100
wt.%,
time
86.06
min,
level
8.28,
temperature
°C
yield
K/S
value
10.21
fabric.
Similarly,
55.85
120
5,
7.65
This
proposed
not
only
paves
way
but
also
facilitates
diverse
processes
materials.
Molecules,
Journal Year:
2021,
Volume and Issue:
26(10), P. 3013 - 3013
Published: May 19, 2021
Husk
and
pellicle
as
the
agri-food
waste
in
walnut-product
industry
are
soaring
demand
because
of
their
rich
polyphenol
content.
This
study
investigated
differential
compounds
related
to
walnut
between
husk
during
fruit
development
stage.
By
using
ultra-high
performance
liquid
chromatography-quadrupole-orbitrap
(UHPLC-Q-Orbitrap),
a
total
110
bioactive
components,
including
hydrolysable
tannins,
flavonoids,
phenolic
acids
quinones,
were
tentatively
identified,
33
which
different
pellicle.
The
trend
dynamic
content
16
polyphenols
was
clarified
stage
by
high-performance
chromatography
(HPLC).
is
first
time
comprehensive
identification
pellicle,
our
results
indicated
that
resource
polyphenols.
some
consistent
with
phenols.
characterization
quantification
main
will
be
beneficial
for
understanding
potential
application
value
exploiting
its
metabolism
pathway.
Antioxidants,
Journal Year:
2021,
Volume and Issue:
10(4), P. 607 - 607
Published: April 15, 2021
The
extraction
of
bioactive
compounds
present
in
walnut
(Juglans
regia
L.)
male
flowers
(WMFs)
was
performed
based
on
an
experimental
design
using
ultrasonic-assisted
extraction.
Solvent
nature,
time,
and
water
content
were
selected
as
variables,
phenolic,
flavonoidic,
condensed
tannins
contents
antioxidant
properties
evaluated.
Acetone
the
solvent
with
highest
performance,
extracts
obtained
this
displaying
increased
concentration
activities.
For
several
high
content,
individual
polyphenolic
tocopherolic
evaluated
by
means
LC-MS
LC-MS/MS.
best
conditions
for
(2.86
mg
gallic
acid
equivalents/g
WMF)
(29.4
µg/g
acetone
40%
(N20)
20%
(N15),
respectively.
Although
total
tocopherol
concentrations
lower
than
other
Juglans
parts,
most
quantity
provided
highly
biologically
active
δ-tocopherol
(84%).
Significant
quantities
quercetin
(101.9
µg/g),
hyperoside
(2662.9
quercitrin
(405.7
isoquercitrin
(1293.7
µg/g)
determined
WMF
(N20).
Both
inhibited
enzymatic
activity
α-glucosidase
tyrosinase;
however,
inhibition
observed
N20,
extract
higher
content.
Conversely,
N15
had
anticancerous
cell
lines
used,
a
moderate
selectivity
towards
cancerous
phenotype
being
both
extracts.
At
non-cytotoxic
concentrations,
displayed
good
activities
cellular
cultures,
decreasing
basal
H2O2-induced
oxidative
stress.
This
is
first
characterization
hydrophilic
lipophilic
phytochemicals
outcomes
our
study
reveal
that
have
strong
biological
activities,
thus
justifying
further
research
to
demonstrate
their
usefulness
food,
pharmaceutical,
and/or
cosmetic
industries.
LWT,
Journal Year:
2022,
Volume and Issue:
172, P. 114179 - 114179
Published: Nov. 16, 2022
Inhibiting
the
activity
of
α-glucosidase
is
considered
an
effective
strategy
to
regulate
blood
sugar
levels
and
manage
food-linked
hyperglycemia.
Green
walnut
husk
(GWH)
main
processing
by-product
walnut,
still
rich
in
natural
bioactive
compounds
with
inhibition.
The
objective
this
study
was
screen
specific
components
GWH
responsible
for
inhibitory
effects
investigate
mechanisms
through
enzyme
kinetic
analysis,
multi-spectroscopic
techniques,
molecular
docking
analysis.
Affinity
ultrafiltration-liquid-chromatography-mass
spectrometry
employed
rapidly
identify
Catechin,
hyperoside,
quercetin
exhibited
significant
activities
IC50
values
12.78,
77.24,
92.87
μg/mL,
respectively.
inhibition
analysis
indicated
that
catechin
were
competitive
inhibitors,
while
hyperoside
uncompetitive
inhibitor.
UV
spectra,
Fourier-transform
infrared
spectroscopy,
fluorescence
quenching
demonstrated
these
inhibitions
led
conformational
changes
α-glucosidase.
Circular
dichroism
spectra
suggested
secondary
structures
induced
by
inhibitors.
illustrated
interaction
forces
between
inhibitors
hydrogen
bonds
hydrophobic
interactions,
binding
energy
−8.3,
−9.5,
−9.5
kcal/mol,
Therefore,
provided
a
potential
source
developing
