Journal of Separation Science,
Journal Year:
2021,
Volume and Issue:
45(1), P. 210 - 222
Published: Sept. 7, 2021
Dispersive
liquid-liquid
microextraction
is
one
of
the
most
widely
used
techniques
currently
in
analytical
chemistry
field,
mainly
due
to
its
simplicity
and
rapidity.
The
operational
mode
this
approach
has
been
constantly
changing
since
introduction,
adapting
new
trends
applications.
Most
these
changes
are
related
nature
solvent
employed
for
microextraction.
From
classical
halogenated
solvents
(e.g.,
chloroform
or
dichloromethane),
different
alternatives
have
proposed
order
obtain
safer
non-pollutants
In
sense,
low-density
solvents,
such
as
alkanols,
switchable
hydrophobicity
ionic
liquids
were
first
popular
replacements
which
provided
similar
better
results
than
dispersive
solvents.
However,
despite
good
performances
obtained
with
liquids,
researchers
continued
investigating
even
greener
For
that
reason,
review,
evolution
over
last
five
years
three
types
already
mentioned
two
promising
(i.e.,
deep
eutectic
supramolecular
solvents),
studied
detail
purpose
discussing
provides
greenest
alternative.
Agronomy,
Journal Year:
2017,
Volume and Issue:
7(3), P. 47 - 47
Published: July 7, 2017
Vegetable
sources
and
agro-industrial
residues
represent
an
important
source
of
phenolic
compounds
that
are
useful
in
a
wide
range
applications,
especially
those
with
biological
activities.
Conventional
techniques
phytochemical
extraction
have
been
associated
high
consumption
organic
solvents
limits
the
application
bioactive
extracts,
leading
to
implementation
novel
technologies
using
mechanisms
such
as
Ultrasound
Assisted
Extraction
(UAE).
In
present
review,
analysis
involved
variables
yield
through
UAE
is
presented,
highlighting
advantages
this
technology
based
on
results
obtained
various
optimized
studies.
A
comparison
other
proposal
its
possible
for
agro
industrial
raw
material
also
indicated.
Finally,
it
concluded
placed
within
area
Sustainable
Chemistry
since
promotes
use
renewable
materials
compounds,
implementing
substitution
do
not
toxic
effects,
lowering
energy
when
compared
conventional
methods
minimizing
process
times
temperatures,
which
thermo-labile
compounds.
Microchemical Journal,
Journal Year:
2019,
Volume and Issue:
152, P. 104384 - 104384
Published: Nov. 1, 2019
Over
the
past
decade,
deep
eutectic
solvents
(DES)
have
been
widely
studied
and
applied
in
sample
preparation
techniques.
Until
recently,
most
of
synthesized
DES
were
hydrophilic,
which
prevented
their
use
extraction
aqueous
samples.
However,
after
2015
studies
on
synthesis
application
hydrophobic
(HDES)
has
rapidly
expanded.
Due
to
unique
properties
HDES
i.e.
density,
viscosity,
acidity
or
basicity,
polarity
volatility,
good
extractabilities
for
various
target
analytes,
could
be
altered
by
careful
selection
hydrogen
bond
donor
(HBD)
acceptor
(HBA)
components,
are
promising
alternatives
traditional
organic
employed
preparation.
Moreover,
possibility
non-toxic
ingredients,
makes
meet
all
standards
green
analytical
chemistry.
Practical
applications
include
conventional
liquid-liquid
extraction,
several
types
liquid-phase
microextraction,
as
well
solid
phase
extraction.
The
present
review
covers
a
comprehensive
summarizing
available
literature
data
important
physicochemical
playing
key
role
methods,
limitations
challenges
this
area,
perspective
future
described.
Ultrasonics Sonochemistry,
Journal Year:
2021,
Volume and Issue:
73, P. 105506 - 105506
Published: March 1, 2021
The
use
of
non-thermal
processing
technologies
has
been
on
the
surge
due
to
ever
increasing
demand
for
highest
quality
convenient
foods
containing
natural
taste
&
flavor
and
being
free
chemical
additives
preservatives.
Among
various
methods,
ultrasound
technology
proven
be
very
valuable.
Ultrasound
processing,
used
alone
or
in
combination
with
other
yields
significant
positive
results
foods,
thus
considered
efficacious.
Food
processes
performed
under
action
are
believed
affected
part
by
cavitation
phenomenon
mass
transfer
enhancement.
It
is
an
emerging
promising
applied
efficiently
food
industry
several
such
as
freezing,
filtration,
drying,
separation,
emulsion,
sterilization,
extraction.
Various
researches
have
opined
that
leads
increase
performance
process
improves
factors
food.
present
paper
will
discuss
mechanical,
biochemical
effects
produced
propagation
high
intensity
ultrasonic
waves
through
medium.
This
review
outlines
current
knowledge
about
application
including
preservation
In
addition,
advantages
which
when
combined
different
(such
microwave,
supercritical
CO2,
pressure
enzymatic
extraction,
etc.)
examined.
These
include
array
effective
mixing,
retention
characteristics,
faster
energy
transfer,
reduced
thermal
concentration
gradients,
increased
production,
efficient
alternative
conventional
techniques.
Furthermore,
presents
necessary
theoretical
background
details
technology,
technique,
safety
precautions
ultrasound.
Critical Reviews in Food Science and Nutrition,
Journal Year:
2019,
Volume and Issue:
60(15), P. 2564 - 2592
Published: Aug. 13, 2019
The
principles
of
‘green
chemistry’
are
gaining
importance
in
agri-food
sector
due
to
the
need
reduce
pollution
from
toxic
chemicals,
make
industrial
processes
safer
and
more
sustainable,
offer
‘clean-labeled
products’
required
by
consumers.
application
natural
deep
eutectic
solvents
(NADES)
–
product-based
green
liquids
is
considered
promising
alternative
conventional
organic
solvents.
This
review
intended
summarize
discuss
recent
advances
related
physicochemical
properties
NADES,
their
applications,
compatibility
with
analytic
techniques
toxicological
profile,
pointing
out
challenges
necessary
improvements
for
wider
utilization
sector.
NADES
allow
extraction
wide
range
food
compounds
they
proven
be
convenient
food-related
applications.
However,
potential
scale-up
not
completely
investigated.
Examined
readily
biodegradable,
but
only
preliminary
studies
on
toxicity
which
include
limited
number
molecules
available.
Apart
fundamental
research
dealing
formation
nature
interactions
structure
underpinning
liquid
phase
formation,
question
purity
obtained
different
synthetic
methodologies
addressed
future.
Data
synthetized
still
needed
as
relevant
Topics in Current Chemistry,
Journal Year:
2018,
Volume and Issue:
376(1)
Published: Jan. 17, 2018
New
generations
of
biorefinery
combine
innovative
biomass
waste
resources
from
different
origins,
chemical
extraction
and/or
synthesis
biomaterials,
biofuels,
and
bioenergy
via
green
sustainable
processes.
From
the
very
beginning,
identifying
evaluating
all
potentially
high
value-added
chemicals
that
could
be
removed
available
renewable
feedstocks
requires
robust,
efficient,
selective,
reproducible,
benign
analytical
approaches.
With
this
in
mind,
separation
natural
products
agro-industrial
is
clearly
attractive
considering
both
socio-environmental
economic
aspects.
In
paper,
concepts
will
discussed,
highlighting
main
studies
conducted
on
topic
over
last
10
years.
The
principal
techniques
(such
as
solvent,
microwave,
ultrasound,
supercritical
treatments),
by-products
(e.g.,
citrus,
coffee,
corn,
sugarcane
waste)
target
compounds
(polyphenols,
proteins,
essential
oils,
etc.)
presented,
including
emerging
approaches
towards
bioeconomy
circular
economy
contexts.
