Journal of Agricultural and Food Chemistry,
Год журнала:
2019,
Номер
67(9), С. 2530 - 2539
Опубликована: Фев. 15, 2019
Chitosan
ascorbates
with
different
substitution
degrees
were
synthesized
on
the
basis
of
salification
chitosan
and
ascorbic
acid
at
various
molar
ratios
in
water
successfully
used
to
prepare
antioxidative
films
by
casting
for
first
time.
Fourier
transform
infrared
1H
nuclear
magnetic
resonance
spectra
recorded
structural
characteristics
all
ascorbates;
meanwhile,
physicochemical
property
antioxidant
activity
produced
ascorbate
characterized,
acetate
film
serving
as
control,
these
properties
also
measured
comparison.
The
results
revealed
that
not
only
improved
total
color
difference,
chroma,
opacity,
capacity
blocking
ultraviolet–visible
light,
solubility
chitosan-based
but
decreased
content,
swelling
degree,
vapor
permeability
compared
film.
Also,
was
expected,
assays
showed
incorporation
into
matrix
effectively
enhanced
scavenging
against
DPPH
radical
reducing
power.
Cs2Vc8
Cs2Vc6
especially
exhibited
strongest
capacities
(EC50
<
0.025
mg/mL).
These
findings
offered
a
suggestion
prepared
can
be
applied
novel
green
oxidation-resistant
materials
food
packaging
industry.
International Journal of Molecular Sciences,
Год журнала:
2020,
Номер
21(2), С. 499 - 499
Опубликована: Янв. 13, 2020
As
a
natural
polysaccharide,
chitosan
possesses
good
biocompatibility,
biodegradability
and
biosafety.
Its
hydroxyl
amino
groups
make
it
an
ideal
carrier
material
in
the
construction
of
polymer-drug
conjugates.
In
recent
years,
various
synthetic
strategies
have
been
used
to
couple
with
active
substances
obtain
conjugates
diverse
structures
unique
functions.
particular,
antimicrobial
activity
shown
great
application
prospects
fields
medicine,
food,
agriculture
years.
Hence,
we
will
place
substantial
emphasis
on
approaches
for
preparing
their
applications,
which
are
not
well
summarized.
Meanwhile,
challenges,
limitations,
described
discussed.
Advanced Healthcare Materials,
Год журнала:
2023,
Номер
12(28)
Опубликована: Июль 12, 2023
Continuous
oxidative
stress
and
cellular
dysfunction
caused
by
hyperglycemia
are
distinguishing
features
of
diabetic
wounds.
It
has
been
a
great
challenge
to
develop
smart
dressing
that
can
accelerate
wound
healing
through
regulating
abnormal
microenvironments.
In
this
study,
platelet
rich
plasma
(PRP)
loaded
multifunctional
hydrogel
with
reactive
oxygen
species
(ROS)
glucose
dual-responsive
property
is
reported.
be
conveniently
prepared
PRP,
dopamine
(DA)
grafted
alginate
(Alg-DA),
6-aminobenzo[c][1,2]oxaborol-1(3H)-ol
(ABO)
conjugated
hyaluronic
acid
(HA-ABO)
ionic
crosslinks,
hydrogen-bond
interactions,
boronate
ester
bonds.
The
possesses
injectability,
moldability,
tissue
adhesion,
self-healing,
low
hemolysis,
hemostasis
performances.
Its
excellent
antioxidant
create
microenvironment
for
other
biological
events.
Under
an
and/or
state,
the
degrade
at
accelerated
rate
release
variety
cytokines
derived
from
activated
blood
platelets.
result
series
positive
changes
favorable
healing,
including
fast
anti-inflammation,
macrophage
polarization
toward
M2
phenotype,
promoted
migration
proliferation
fibroblasts,
as
well
expedited
angiogenesis.
This
work
provides
efficient
strategy
chronic
management
offers
alternative
developing
new-type
PRP-based
bioactive
dressing.
Food Hydrocolloids,
Год журнала:
2023,
Номер
146, С. 109221 - 109221
Опубликована: Авг. 28, 2023
In
recent
years,
the
consumption
of
functional
foods
containing
health-beneficial
ingredients
has
become
increasingly
popular.
Polyphenols
are
among
most
important
and
bioactive
molecules
found
in
a
variety
fresh
produce
food
products.
However,
limited
solubility
polyphenols
water
can
significantly
affect
their
bioavailability,
thereby
reducing
potential
health
benefits.
To
overcome
this
limitation,
various
approaches
have
been
explored,
including
molecular
enhancers,
nanoparticles,
encapsulation
systems,
conjugation
methods.
review,
we
focus
on
advances
methods
for
enhancing
bioavailability
polyphenols.
We
provide
concise
overview
types
determination
and,
subsequently,
discuss
concept
methods,
different
synthesizing
confirmation
procedures,
effects
polysaccharides
Overall,
review
provides
comprehensive
update
that
be
used
to
improve
highlights
these
enhance
benefits
polyphenol-rich
foods.
