South African Journal of Chemical Engineering,
Год журнала:
2023,
Номер
46, С. 330 - 342
Опубликована: Авг. 22, 2023
Orthosiphon
aristatus
(O.
aristatus),
Andrographis
paniculata
(A.
paniculata),
and
Gynura
segetum
(G.
segetum)
leaves
were
subjected
as
raw
material
to
obtain
phytochemical
compounds
using
sub-critical
water
extraction
(SWE)
technique.
In
a
semi-batch
process,
the
was
performed
for
∼150
min
time
at
120
–
160°C
3
10
MPa.
The
Fourier-transform
infrared
spectroscopy
(FT–IR)
spectrum
depicted
that
phenolic
flavonoid
liberated
from
each
medicinal
plant
in
aforementioned-temperature
range.
second-order
kinetic
Weibull
models
also
may
properly
represent
describe
kinetics
curves
of
sample
these
operating
conditions
(120
MPa).
amounts
could
approach
284.73
mg
GAE/g
dried
(140°C,
MPa)
232.89
CE/g
MPa),
respectively.
Ultrasonics Sonochemistry,
Год журнала:
2023,
Номер
101, С. 106677 - 106677
Опубликована: Ноя. 3, 2023
The
demand
for
sustainable
and
eco-friendly
extraction
methods
bioactive
compounds
from
natural
sources
has
increased
significantly
in
recent
years.
In
this
study,
we
investigated
the
effectiveness
of
microwave
pretreated
ultrasound-assisted
(MPUAE)
process
antioxidants
(TPC,
DPPH,
FRAP)
papaya
pulp
peel.
optimized
variables
MPUAE
were
determined
using
Box-Behnken
design
tool
response
surface
methodology.
Our
results
showed
that
peel
675.76
669.70
W
power,
150
s
irradiation
time,
30
°C
ultrasound
temperature,
19.70
16.46
min
ultrasonic
respectively.
Moreover,
was
found
to
be
more
energy-efficient
environmentally
friendly
compared
conventional
ultrasound-associated
(UAE)
technique.
emitted
less
CO2
environment
had
a
shorter
resulting
cost-effective
process.
study
suggests
potential
promising
alternative
industrial
other
sources.
TrAC Trends in Analytical Chemistry,
Год журнала:
2023,
Номер
166, С. 117201 - 117201
Опубликована: Июль 22, 2023
Pressurized
hot
water
extraction
(PHWE)
is
a
sustainable
technique
that
represents
an
alternative
to
conventional
methods
using
organic
solvents.
It
enables
the
recovery
of
bioactive
compounds,
such
as
phenolic
proteins,
and
polysaccharides,
among
others,
from
different
natural
sources.
Hence,
primary
objective
this
review
offer
brief
overview
on
PHWE
fundamentals,
providing
up-to-date
account
its
applications
in
compounds
2019
present.
This
builds
upon
previous
works
(Plaza
Turner
(Trends
Analytical
Chemistry
71
(2015)
39–57)
Plaza
Marina
116
(2019)
236–247)).
Additionally,
highlights
latest
trends
PHWE,
including
combination
with
other
advanced
techniques
well
use
deep
eutectic
solvents
modifiers,
enhance
yields.
These
advances
aim
improve
efficiency
versatility
technique.
TrAC Trends in Analytical Chemistry,
Год журнала:
2024,
Номер
171, С. 117536 - 117536
Опубликована: Янв. 11, 2024
Concerning
the
high
impact
of
climatic
change
in
environment,
scientific
community
has
focused
on
a
circular
economy
perspective
and
revalorization
waste
generated
by
food
industry
for
bioactive
uses.
These
applications
are
possible
due
to
presence
compounds
these
wastes.
In
this
sense,
phenolic
highlight
their
positive
health
implications,
as
they
possess
potent
activity
prevent
diseases
such
cancer,
inflammation
obesity,
among
others.
For
purpose,
optimized
extraction
target
from
by-products
with
novel
green
chemistry
approach,
using
environmentally
clean
friendly
techniques,
commonly
known
extractions,
well
those
permitted
foods
safe
(GRAS
solvents)
is
applied.
Following
research
line,
systematic
review
was
conducted
different
databases
(Web
Science,
PubMed
Scopus)
following
PRISMA
guidelines
assess
optimization
GRAS
solvent
techniques
by-products,
best
conditions,
experimental
design
applied
obtained
maximum
amounts
interest,
considering
published
date.
Thus,
67
studies
282
records
identified
met
inclusion
criteria.
A
distinction
been
made
between
technologies
used
processes,
paying
special
attention
designs
independent
variables.
Finally,
quantitative
qualitative
comparison
matrices
studied.
Journal of Environmental Management,
Год журнала:
2022,
Номер
322, С. 116150 - 116150
Опубликована: Сен. 5, 2022
An
increasing
understanding
of
the
negative
environmental
effects
waste
discharges
has
made
valorization
distillery
by-products
to
recover
added-value
compounds
a
sound
option
for
stillage
management.
In
this
study,
recovery
bioactive
compounds,
i.e.
polyphenols,
from
was
performed
by
microwave-assisted
extraction
(MAE),
ultrasound-assisted
(UAE)
and
conventional
solid-liquid
(CSLE)
investigate
time,
concentration
ethyl
acetate
(EA)
in
solvent
mixture
with
ethanol
water,
solid-to-solvent
ratio
on
yield
antioxidant
activity
extracts.
The
highest
yields
total
polyphenol
content
(TPC)
(3.73
mg
gallic
acid
equivalent/g)
phenolic
(2.51
μg/g)
were
obtained
8-min
MAE
70%
EA.
provided
1.2-
1.4-times
higher
acids
1.6-times
than
UAE
CSLE,
respectively.
Due
approximately
3-times
rate
extraction,
between
energy
consumption
better
UAE.
Principal
component
analysis
(PCA)
showed
that
extracts
positively
correlated
TPC
content.
Six
identified
present
mainly
their
free
forms
(up
95%
total),
predominance
ferulic
0.80
p-coumaric
0.72
acids.
Current Opinion in Food Science,
Год журнала:
2023,
Номер
52, С. 101065 - 101065
Опубликована: Июнь 8, 2023
The
by-products
generated
by
agri-food
industries
represent
an
interesting
and
valuable
source
of
potential
health-promoting
compounds.
Increasing
scientific
evidences
highlight
the
role
food-related
bioactive
compounds
in
prevention
or
amelioration
some
diseases.
In
this
regard,
efficient
sustainable
extraction
procedures,
followed
comprehensive
chemical
functional
characterization
with
high-throughput
bioanalytical
omics
technologies,
significant
methodological
advances
to
scientifically
support
health
claims
new
molecules.
This
short
review
critically
summarizes
selected
cutting-edge
investigations
dealing
advanced
strategies
obtain
evaluate
biological
activity
ingredients
from
food
by-products.
