Ultrasonics Sonochemistry,
Год журнала:
2024,
Номер
104, С. 106844 - 106844
Опубликована: Март 1, 2024
An
efficient,
cost-effective
and
environmentally
friendly
ultrasound-assisted
hot
water
method
for
Imperata
cylindrica
polysaccharide
(ICPs)
extraction
was
developed.
According
to
the
response
surface
results,
optimal
ultrasonic
time
85
min,
power
192.75
W,
temperature
90.74
°C,
liquid–solid
ratio
26.1,
yield
28.50
%.
The
mainly
consisted
of
arabinose
(Ara),
galactose
(Gal),
glucose
(Glc),
with
a
molecular
weight
62.3
kDa.
Ultrasound-assisted
(UICP)
exhibited
stronger
anti-oxidant
activity
ability
ameliorate
cellular
damage
due
uric
acid
stimulation
compared
traditional
(ICPC-b).
It
also
higher
thermal
stability,
indicating
its
potential
value
applications
in
food
industry.
Ultrasonics Sonochemistry,
Год журнала:
2024,
Номер
106, С. 106895 - 106895
Опубликована: Май 1, 2024
Tartary
buckwheat
(Fagopyrum
tataricum
(L.)
Gaertn)
leaf
has
abundant
rhamnogalacturonan-I
enriched
pectic
polysaccharides,
which
exert
various
health-promoting
effects.
Nevertheless,
the
potential
relationship
between
chemical
structure
and
biological
function
of
polysaccharides
from
leaves
(TBP)
remains
unclear.
Therefore,
to
bridge
gap
TBP,
impacts
ultrasound-assisted
Fenton
degradation
(UFD)
mild
alkaline
de-esterification
(MAD)
on
structural
properties
effects
TBP
were
systematically
studied.
Compared
with
native
(molecular
mass,
9.537
×
104
Da),
molecular
masses
degraded
TBPs
(TBP-MMW,
4.811
Da;
TBP-LMW,
2.101
Da)
significantly
reduced
by
UFD
modification,
while
their
primary
structures
overall
stable.
Besides,
compared
(esterification
degree,
22.73
%),
esterification
degrees
de-esterified
(TBP-MDE,
14.27
%;
TBP-LDE,
6.59
%)
notably
MAD
also
Furthermore,
results
revealed
that
both
modifications
could
improve
antioxidant,
antiglycation,
immunostimulatory
TBP.
Indeed,
TBP's
negatively
correlated
its
mass
positively
linked
free
uronic
acids.
The
findings
demonstrate
are
promising
techniques
for
modification
can
remarkedly
promote
present
conducive
better
understanding
structure-bioactivity
relationship.
