Sustainable Chemistry and Pharmacy,
Journal Year:
2024,
Volume and Issue:
38, P. 101478 - 101478
Published: Feb. 14, 2024
Value
added
plant
bioactives
represent
a
renewable
group
of
compounds
with
increasing
demand
in
different
applications.
Conventional
solvent
extraction
and
purification
stages
require
effective
selective
solvents,
but
their
separation
recovery
are
also
determinant
to
limit
the
economical
environmental
impact,
associated
evaporation
toxic
vapors.
This
review
explores
recent
advances
very
simple,
not
new
always
feasible
approach,
consisting
directly
using
crude
natural
extract
or
fractions
avoiding
removal
stages.
The
should
be
compatible
final
product
and,
if
possible
improve
confer
novel
functional/technological
properties.
Considering
food,
cosmetic
pharmaceutical
uses,
water,
oil,
glycerol
deep
eutectic
solvents
surveyed.
possibility
developing
processes
less
unit
operations
intensification
strategies
further
explored
obtain
valuable
products.
iScience,
Journal Year:
2023,
Volume and Issue:
26(9), P. 107671 - 107671
Published: Aug. 19, 2023
Deep
eutectic
solvents
(DESs)
are
increasingly
being
recognized
as
sustainable
and
promising
because
of
their
unique
properties:
low
melting
point,
cost,
biocompatibility.
Some
DESs
possess
high
viscosity,
remarkable
stability,
minimal
toxicity,
enhancing
appeal
for
diverse
applications.
Notably,
they
hold
promise
in
biomass
pretreatment,
a
crucial
step
conversion,
although
potential
algal
carbohydrates
extraction
remains
largely
unexplored.
Understanding
the
correlation
between
DESs'
properties
behavior
carbohydrate
extraction,
alongside
cellulose
degradation
mechanisms,
gap.
This
review
provides
an
overview
use
extracting
from
lignocellulosic
biomass,
explores
factors
that
influence
sheds
light
on
mechanism
by
DESs.
Additionally,
discusses
future
developments
applications
DESs,
particularly
biomass.
Electrochimica Acta,
Journal Year:
2024,
Volume and Issue:
490, P. 144305 - 144305
Published: April 20, 2024
The
phenazine
dye
cresyl
violet
(CVio)
has
been
evaluated
as
precursor
for
the
preparation
of
a
new
electrochemical
sensor
based
on
poly(cresyl
violet)
deposited
multiwalled
carbon
nanotube
(CNT)
modified
glassy
electrodes
(GCE)
in
neutralized
acid-doped
ternary
deep
eutectic
solvents
(DES).
DES
with
choline
chloride
hydrogen
bond
acceptor
and
different
donors
(HBD),
namely
acetic
acid,
ethylene
glycol
oxalic
acid
were
CVio
electropolymerization
by
potential
cycling.
best
polymer
films
obtained
two
HBD
plus
doped
H2SO4
followed
NaOH
neutralization.
Electrochemical
characterization
(voltammetric
impedance)
showed
formation
anthraquinone
groups
during
electropolymerization,
which
is
initiated
CNT
cation
radical.
Anthraquinones
film
led
to
an
increased
response
at
electrode
determination
hydroquinone
(H2Q)
low
LOD
(0.25
µmol
L−1)
broad
linear
range
(1-80
L−1),
good
reproducibility,
repeatability,
stability.
was
successfully
applied
quantification
H2Q
dermatological
creams
no
matrix
effect
towards
response.
PeerJ Analytical Chemistry,
Journal Year:
2024,
Volume and Issue:
6, P. e29 - e29
Published: Jan. 3, 2024
This
study
investigated
the
influence
of
deep
eutectic
solvent
(DES)
acidity/alkalinity
on
extraction
profiles
phenolics
and
other
biomolecules
(phytic
acid,
reducing
sugar,
protein)
in
defatted
rice
bran
(DFRB).
The
DES
with
varying
pH
levels
were
prepared
using
different
hydrogen
bond
acceptors
(choline
chloride
(ChCl)
potassium
carbonate
(K
2
CO
3
))
donors
(lactic
urea,
glycerol).
results
reveal
that
acidic
(ChCl-lactic
acid;
0.42)
demonstrated
superior
efficiency
for
total
phenolic
acids
(4.33
mg/g),
phytic
acid
(50.30
sugar
(57.05
mg/g)
while
having
lowest
protein
content
(5.96
mg/g).
alkaline
-glycerol;
11.21)
showed
highest
(5.49
(12.81
lower
quantities
(1.04
(2.28
weakly
(ChCl-glycerol;
4.72)
exhibited
predominantly
(3.46
(6.22
(1.68
(0.20
(ChCl-urea;
8.41)
resulted
yields
(2.81
(7.45
(0.10
(7.36
also
explored
distribution
among
various
DESs,
-glycerol)
containing
concentration
free
phenolics.
Notably,
ChCl-based
DESs
contained
soluble
esterified
bound
glycosylated
Furthermore,
a
significant
correlation
between
antioxidant
activities
contents
was
observed.
In
conclusion,
this
has
revealed
acidity
alkalinity
significantly
impact
value-added
DFRB.
These
findings
highlight
potential
manipulating
properties
through
variation,
making
them
versatile
solvents
extracting
isolating
valuable
compounds
from
agricultural
by-products
like
DFRB
offering
opportunities
sustainable
utilization
value
addition
industries.
Heliyon,
Journal Year:
2025,
Volume and Issue:
11(2), P. e41790 - e41790
Published: Jan. 1, 2025
This
study
aimed
to
extract
polysaccharides
from
Tenebrio
molitor
using
ultrasound-assisted
deep
eutectic
solvent
(DESs)
and
evaluate
their
structural
features,
as
well
antimicrobial,
antioxidant,
α-amylase
inhibitory
activities.
Various
DESs
were
tested
for
extraction,
the
process
was
optimized
response
surface
methodology
(RSM).
A
preliminary
analysis
of
conducted
infrared
spectrum.
The
characterized
by
measuring
pH,
viscosity,
conductivity,
refractive
index,
density.
optimal
extraction
agent
parameters
determined.
Significant
differences
in
conductivity
observed
among
DESs,
whereas
index
density
not
significant.
Choline
chloride-lactic
acid
identified
agent.
a
DES
molar
ratio
1:2.1,
water
content
27
%,
an
temperature
70
°C,
time
44
min,
resulting
yield
18.62
%.
extracted
exhibited
strong
effects
against
Salmonella,
along
with
antioxidant
activity
demonstrated
that
can
be
efficiently
showcasing
significant
biological
activities,
including
antibacterial,
properties.
These
findings
highlight
potential
applications
valuable
resources.
