International Journal of Medical Microbiology,
Год журнала:
2023,
Номер
313(3), С. 151582 - 151582
Опубликована: Май 1, 2023
Polaprezinc
(PZ)
plays
a
role
in
the
protection
of
gastric
mucosa
and
inhibiting
Helicobacter
pylori
(H.
pylori)
growth
vitro.
The
objective
this
study
was
to
determine
protective
effects
PZ
on
human
epithelial
cells
(GES-1)
against
H.
pylori-induced
damage,
while
also
examining
heat
shock
protein
70
(HSP70)
as
potential
underlying
factor
protection.
Our
findings
revealed
that
exerted
bactericidal
strains.
We
observed
mitigated
damage
GES-1
by
increasing
cell
viability,
reducing
LDH
release,
decreasing
secretion
pro-inflammatory
factors
such
MCP-1
IL-6.
Co-culturing
with
significantly
up-regulated
HSP70
expression
both
time
dose-dependent
manner.
Pre-incubating
(for
12
h)
or
co-culturing
24
reversed
down-regulation
caused
infection.
However,
when
quercetin
used
inhibit
up-regulation
cells,
effect
reduced.
Based
results
study,
exhibits
injury,
well
direct
pylori.
is
involved
PZ-driven
host
injury.
These
provide
insight
into
alternative
strategies
for
treatment.
Comprehensive Reviews in Food Science and Food Safety,
Год журнала:
2024,
Номер
23(5)
Опубликована: Сен. 1, 2024
Abstract
Shrimp
consumption
is
in
great
demand
among
the
seafood
used
globally.
However,
this
expansion
has
resulted
substantial
generation
and
disposal
of
shrimp
shell
waste.
Through
literature
search,
it
been
observed
that
since
2020,
global
scholars
have
shown
unprecedented
interest
waste
its
chitin/chitosan.
these
new
insights
lack
corresponding
comprehensive
summarization
analysis.
Therefore,
article
provides
a
detailed
review
extraction
methods,
applications,
latest
research
developments
on
chitin/chitosan
from
shells,
including
micro‐nano
derivatives,
2020
to
present.
The
results
indicate
chemical
remains
primary
technique
for
preparation
shells.
With
further
refinement
development,
adjusting
parameters
process
or
employing
auxiliary
techniques
such
as
microwave
radiation
enable
customization
target
products
with
different
characteristics
(e.g.,
deacetylation
degree,
molecular
weight,
degree
acetylation)
according
specific
needs.
Additionally,
pursuit
environmentally
friendly,
efficient,
gentle
processes,
recent
shifted
toward
microbial
fermentation
green
solvent
methods
extraction.
Beyond
traditional
antibacterial,
film‐forming,
encapsulation
functionalities,
into
applications
chitosan
biomedical,
food
processing,
materials,
water
treatment,
adsorption
fields
gradually
deepening.
Chitin/chitosan
derivatives
their
modified
also
focal
point
years.
rapid
expansion,
future
development
still
faces
challenges
related
unclear
mechanism
action
complexities
associated
industrial
scale‐up.
Foods,
Год журнала:
2023,
Номер
12(14), С. 2642 - 2642
Опубликована: Июль 8, 2023
In
this
study,
a
composite
film
was
prepared
using
irradiated
chitosan,
lysozyme,
and
carrageenan
for
crayfish
preservation.
First,
the
chitosan
degraded
by
gamma
rays,
with
best
antimicrobial
properties
being
found
at
100
KGy.
By
response
surface
method,
components
of
were
(CS)
0.016
g/mL,
lysozyme
(LM)
0.0015
(CA)
0.002
g/mL.
When
compared
to
natural
film,
Fourier-transform
infrared
spectroscopy
(FTIR)
X-ray
diffraction
(XRD)
results
demonstrated
that
chemical
did
not
change
addition
LM
CA,
while
physical
antibacterial
increased,
including
tensile
strength
(16.87
→
20.28
N),
hydrophobicity
(67.9
86.3°),
oxygen
permeability
(31.66
24.31
m3∙um/m2∙day∙kPa).
Moreover,
activity
films
increased
especially
Shewanella
putrefaciens:
zone
inhibition
(mm)
CS,
CS/LM,
CS/LM/CA
9.97
±
0.29,
14.32
0.31,
14.78
0.21,
respectively.
Finally,
could
preserve
10
days
4
°C,
whereas
polyethylene
(PE)
only
them
6
days.
excellent
inhibiting
oxidative
deterioration
(TBARS
value:
2.12
mg/kg,
day10)
keeping
texture
muscle.
Overall,
our
suggested
produced
can
be
applied
as
biodegradable
in
aquatic
product
packaging.
Foods,
Год журнала:
2024,
Номер
13(15), С. 2375 - 2375
Опубликована: Июль 27, 2024
spp.
is
a
Gram-negative
bacteria
known
for
its
ability
to
cause
foodborne
infection
in
association
with
eating
raw
or
undercooked
seafood.
The
majority
of
these
illnesses
are
caused
by
mollusks,
especially
bivalves.
Thus,
the
prevalence
Foods,
Год журнала:
2023,
Номер
12(20), С. 3854 - 3854
Опубликована: Окт. 20, 2023
Chitooligosaccharide
(CHOS),
a
depolymerized
chitosan,
can
be
prepared
via
physical,
chemical,
and
enzymatic
hydrolysis,
or
combination
of
these
techniques.
The
superior
properties
CHOS
have
attracted
attention
as
alternative
additives
bioactive
compounds
for
various
food
biomedical
applications.
To
increase
the
bioactivities
CHOS,
its
derivatives
been
different
methods
were
characterized
using
analytical
including
FTIR
NMR
spectroscopy.
such
carboxylated
quaternized
others
showed
their
potential
potent
anti-inflammatory,
anti-obesity,
neuroprotective,
anti-cancer
agents,
which
could
further
used
human
health
benefits.
Moreover,
enhanced
antibacterial
antioxidant
bioactivities,
especially
CHOS-polyphenol
conjugate,
play
profound
role
in
shelf-life
extension
safety
assurance
perishable
foods
inhibition
spoilage
microorganisms
pathogens
lipid
oxidation.
Also,
effectiveness
augmented
when
with
other
preservative
technologies.
Therefore,
this
review
provides
an
overview
production
derivatives,
well
applications
either
nutraceuticals.
Furthermore,
it
revisits
recent
advancements
translational
research
vivo
studies
on
medical-related
field.
