Ultrasonics Sonochemistry,
Год журнала:
2023,
Номер
93, С. 106295 - 106295
Опубликована: Янв. 10, 2023
Response
surface
methodology
(RSM)
was
used
to
optimize
the
ultrasound-assisted
extraction
conditions
of
Ginkgo
biloba
leaves
polysaccharide
(GBLP).
The
optimum
for
GBLP
were
obtained
as
liquid
material
ratio
30
mL/g,
ultrasonic
power
340
W,
and
time
50
min.
Under
these
conditions,
yield
5.37
%.
Two
chemically
modified
polysaccharides,
CM-GBLP
Ac-GBLP,
by
carboxymethylation
acetylation
GBLP.
physicochemical
properties
three
polysaccharides
comparatively
studied
their
in
vitro
antioxidant
activities
evaluated
comprehensively.
results
showed
that
solubility
significantly
enhanced
activity
somewhat
improved.
This
suggests
are
effective
methods
enhance
properties,
but
exhibited
some
uncontrollability.
At
same
time,
has
also
shown
high
potential
research
application.
Ultrasonics Sonochemistry,
Год журнала:
2023,
Номер
98, С. 106507 - 106507
Опубликована: Июнь 28, 2023
In
this
study,
Shatian
pomelo
peel
was
used
as
the
raw
material
for
extracting
polysaccharides
using
hot
water
extraction
(HW)
and
ultrasonic-assisted
enzyme
(UVE)
methods,
respectively.
The
optimal
parameters
extractingShatian
(StPP)
ultrasound-assisted
enzymatic
method
were
determined
response
surface
methodology
(RSM).
conditions
of
StPP
follows:
ultrasound
power
350
W,
time
50
min,
digestion
compound
addition
1.5%,
temperature
55
°C.
yield
found
to
be
30.1310%
under
these
conditions.
Comparing
physicochemical
properties
antioxidant
activity
extracted
different
it
observed
that
resulted
in
higher
yield,
sugar
content
glucuronic
acid
compared
traditional
extraction.
Additionally,
by
showed
better
activity.
These
results
suggest
is
an
effective
enhance
natural
polysaccharides.
Ultrasonics Sonochemistry,
Год журнала:
2023,
Номер
95, С. 106395 - 106395
Опубликована: Апрель 1, 2023
The
maidenhairtree
polysaccharides
(MTPs)
have
important
application
prospects.
So,
the
extraction,
purification,
structure,
derivatization
and
biological
activities
of
from
leaves,
fruits,
testae
were
disscussed.
Polysaccharides
extracted
by
collaborative
extraction
methods
such
as
ultrasound-assisted
microwave-assisted
extraction.
had
higher
content
efficiency.
structural
characteristics
structure-activity
relationship
studied
in
order
to
provide
theoretical
basis
technical
support
for
further
development
utilization
polysaccharides.
Ultrasonics Sonochemistry,
Год журнала:
2023,
Номер
95, С. 106416 - 106416
Опубликована: Апрель 20, 2023
Antitumor,
antioxidant,
hypoglycemic,
and
immunomodulatory
properties
are
all
exhibited
by
maize
polysaccharides.
With
the
increasing
sophistication
of
polysaccharide
extraction
methods,
enzymatic
method
is
no
longer
limited
to
a
single
enzyme
extract
polysaccharides,
more
often
used
in
combination
with
ultrasound
or
microwave,
different
enzymes.
Ultrasound
has
good
cell
wall-breaking
effect,
making
it
easier
dislodge
lignin
hemicellulose
from
cellulose
surface
husk.
The
"water
alcohol
precipitation"
simplest
but
most
resource-
time-consuming
process.
However,
"ultrasound-assisted
extraction"
"microwave-assisted
methods
not
only
compensate
for
shortcoming,
also
increase
rate.
Herein,
preparation,
structural
analysis,
activities
polysaccharides
were
analyzed
discussed.
Biomedicine & Pharmacotherapy,
Год журнала:
2023,
Номер
159, С. 114229 - 114229
Опубликована: Янв. 16, 2023
Neurological
disorders
are
characterized
by
high
morbidity,
disability,
and
mortality
rates,
which
seriously
threaten
human
health.
However,
clinically
satisfactory
agents
for
treatment
still
currently
lacking.
Therefore,
finding
neuroprotective
with
minimum
side
effects
better
efficacy
is
a
challenge.
Chinese
herbal
medicine,
particularly
natural
preparations
extracted
from
herbs
or
plants,
has
become
an
unparalleled
resource
discovering
new
agent
candidates.
Astragali
Radix
important
Qi
tonic
drug
in
traditional
medicine
long
medicinal
history.
As
it
good
prevention
effect
on
neurological
disorders.
Here,
the
role
mechanism
of
astragaloside
IV
were
evaluated
discussed
through
previous
research
results.
Related
information
major
scientific
databases,
such
as
PubMed,
MEDLINE,
Web
Science,
ScienceDirect,
Embase,
BIOSIS
Previews,
Cochrane
Central
Register
Controlled
Trials
Library,
covering
between
2001
2021
was
compiled,
using
"Astragaloside
IV"
"Neurological
disorders,"
IV,"
"Neurodegenerative
diseases"
reference
terms.
By
summarizing
results,
we
found
that
may
play
various
mechanisms:
anti-inflammatory,
anti-oxidative,
anti-apoptotic
protection
nerve
cells
regulation
growth
factor,
well
inhibiting
neurodegeneration
promoting
regeneration.
Astragaloside
promising
agent.
determining
its
pharmacological
mechanism,
be
candidate
Ultrasonics Sonochemistry,
Год журнала:
2023,
Номер
96, С. 106420 - 106420
Опубликована: Апрель 28, 2023
Ipomoea
batatas
polysaccharides
(IBPs)
have
many
important
physiological
functions.
The
optimal
extraction
conditions
were
time
of
40
min,
solid-liquid
ratio
1:8
and
ultrasonic
power
240
W.
1D/2D
nuclear
magnetic
resonance
(1D/2D
NMR)
analysis
showed
that
the
main
chain
IBP-1A
was
mainly
composed
→4)-α-D-Glcp-(1→
→3,
6)-β-D-Glcp-(1→
residues.
In
vivo
experiments
polysaccharide
significantly
increased
levels
antioxidation-related
enzymes
metabolites
in
older
mice.
It
could
relieve
oxidative
stress
injury
delay
aging.
Therefore,
this
study
provided
a
new
theoretical
basis
for
development
IBPs
as
antioxidant
food.
