Foods,
Journal Year:
2024,
Volume and Issue:
13(19), P. 3212 - 3212
Published: Oct. 9, 2024
Plastic
food
packaging
causes
massive
pollution
in
the
environment
via
resource
extraction,
gas
emissions,
and
enduring
plastic
waste
accumulation.
Hence,
it
is
of
crucial
importance
to
discover
sustainable
alternatives
order
protect
ecosystems
conserve
precious
resources.
Recently,
seaweed
has
been
emerging
as
a
promising
solution
pollution.
Seaweed
fast-growing
marine
plant
that
abundant
tropical
coastlines
requires
minimal
resources
cultivate.
In
addition,
rich
valuable
polysaccharides
such
alginate,
fucoidan,
carrageenan,
agar,
ulva,
which
can
be
extracted
processed
into
biodegradable
films,
coatings,
wraps.
This
ability
allows
creation
an
alternative
packages
are
completely
biodegradable,
made
from
renewable
resources,
do
not
linger
landfills
or
oceans
for
centuries.
this
context,
review
discusses
main
classification
seaweed,
their
production
abundance
world,
provides
summary
seaweed-based
materials
developed
last
2–5
years
potential
usage
sector.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Feb. 26, 2024
Seaweeds,
including
the
green
Ulva
lactuca,
can
potentially
reduce
competition
between
feed,
food,
and
fuel.
They
also
contribute
to
improved
development
of
weaned
piglets.
However,
their
indigestible
polysaccharides
cell
wall
pose
a
challenge.
This
be
addressed
through
carbohydrase
supplementation,
such
as
recombinant
ulvan
lyase.
The
objective
our
study
was
assess
muscle
metabolism
piglets
fed
with
7%
U.
lactuca
0.01%
lyase
using
an
integrated
transcriptomics
(RNA-seq)
proteomics
(LC-MS)
approach.
Feeding
seaweed
enzyme
supplementation
resulted
in
reduced
macronutrient
availability,
leading
protein
degradation
proteasome
(PSMD2),
resulting
amino
acids
being
utilized
energy
source
(GOT2,
IDH3B).
Moreover,
mineral
element
accumulation
may
have
contributed
increased
oxidative
stress,
evident
from
elevated
levels
antioxidant
proteins
like
catalase,
response
maintaining
tissue
homeostasis.
upregulation
gene
AQP7,
associated
osmotic
stress
response,
further
supports
these
findings.
Consequently,
increase
chaperone
activity,
HSP90,
required
repair
damaged
proteins.
Our
results
suggest
that
enzymatic
exacerbate
effects
observed
feeding
alone,
due
side
during
digestion.
Foods,
Journal Year:
2024,
Volume and Issue:
13(11), P. 1630 - 1630
Published: May 23, 2024
Ulva
rigida
green
macroalgae
contain
a
variety
of
polysaccharides.
A
recent
study
investigated
the
optimum
concentration
and
yield
polysaccharide
extraction
from
oven-dried
U.
biomass
using
water-soluble
method
that
adhered
to
safety
standards.
This
utilised
complete
factorial
experiments
examine
effects
varying
factors
on
extraction.
Results
showed
positive
correlation
between
increased
levels
all
higher
yield.
also
found
main
their
interaction
had
significant
impact
extracted
polysaccharides
rigida.
The
highest
content
were
9.5
mg/mL
189
mg/g,
respectively.
Water-soluble
demonstrated
presence
reducing
sugar
(8
mg/g),
phenolics
(0.69
mg/g)
flavonoids
(1.42
exhibited
antioxidant
properties.
revealed
freeze-dried
powders
primarily
composed
monosaccharide
rhamnose.
Preliminary
results
effect
these
probiotics
supplementation
promoted
viable
Lactobacillus
rhamnosus
ATCC
53103
growth
during
cultivation.
discovery
has
potential
revolutionise
human
food
industry
promote
development
functional
ingredients
for
novel
future
products,
with
numerous
applications
in
nutraceutical
pharmaceutical
industries.
Foods,
Journal Year:
2024,
Volume and Issue:
13(17), P. 2820 - 2820
Published: Sept. 5, 2024
Ulvan
is
a
water-soluble
sulfated
polysaccharide
extracted
from
the
green
algae
cell
wall.
Compared
with
polysaccharides,
oligosaccharides
have
drawn
increasing
attention
in
various
industries
due
to
their
enhanced
biocompatibility
and
solubility.
lyase
degrades
polysaccharides
into
low
molecular
weight
through
β-elimination
mechanism.
The
elucidation
of
structure,
catalytic
mechanism,
modification
ulvan
will
be
helpful
obtain
high
value-added
products
marine
biomass
resources,
as
well
reduce
environmental
pollution
caused
by
eutrophication
algae.
This
review
summarizes
structure
bioactivity
ulvan,
microbial
origin
lyase,
its
sequence,
three-dimensional
enzymatic
In
addition,
prospects
challenges
application
methods
prepare
are
also
discussed.
It
provides
information
for
preparation
bioactive
Ulva
hydrolysis,
technological
bottlenecks,
possible
solutions
address
these
issues
within
process.
Chemosensors,
Journal Year:
2025,
Volume and Issue:
13(2), P. 75 - 75
Published: Feb. 19, 2025
Textile
solid-phase
extraction
(TSPE)
employing
an
acrylic
nonwoven
textile
impregnated
with
the
sulfated,
negatively
charged
marine
polysaccharide
ulvan
was
employed
for
of
four
positively
dyes,
namely
safranin
O,
methylene
blue,
malachite
green
and
crystal
violet,
from
aqueous
solutions.
The
extracted
dyes
were
analyzed
by
image
analysis
dyed
using
a
smartphone
application.
Dyes
within
concentration
range
0.1–2.0
mg/L
efficiently
analyzed,
demonstrating
that
ulvan-based
TSPE
is
highly
efficient
preconcentration
method
cationic
dyes.
Molecules,
Journal Year:
2023,
Volume and Issue:
28(19), P. 6781 - 6781
Published: Sept. 23, 2023
Ulvan
is
a
sulfated
polysaccharide
extracted
from
green
macroalgae
with
unique
structural
and
compositional
properties.
Due
to
its
biocompatibility,
biodegradability,
film-forming
properties,
as
well
high
stability,
ulvan
has
shown
promising
potential
an
ingredient
of
biopolymer
films
such
sustainable
readily
biodegradable
biomaterials
that
could
replace
petroleum-based
plastics
in
diverse
applications
packaging.
This
work
investigates
the
Ulva
fenestrata
source
ulvan.
Enzyme-assisted
extraction
commercial
cellulases
(Viscozyme
L
Cellulysin)
proteases
(Neutrase
0.8L
Flavourzyme)
was
used
for
cell
wall
disruption,
effect
time
(3,
6,
17,
20
h)
on
yield
main
characteristics
(molecular
weight,
functional
groups,
purity,
antioxidant
capacity)
were
investigated.
Furthermore,
combined
process
based
enzymatic
ultrasound
performed.
Results
showed
higher
times
led
yields,
reaching
maximum
14.1%
dw
Cellulysin
after
h.
The
combination
ultrasound-assisted
resulted
highest
(17.9%
dw).
relatively
protein
content
U.
(19.8%
dw)
makes
residual
biomass,
extraction,
food
feed
applications.
