bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2024,
Volume and Issue:
unknown
Published: June 1, 2024
Abstract
The
role
of
foods
is
shifting
from
focusing
on
the
provision
energy
and
basic
nutrients
to
also
include
bioactive
compounds
that
prevent
development
chronic
age-related
diseases.
Microalgae
offer
a
source
nutritional
with
important
health
effects,
have
potential
for
production
health-promoting
products,
without
increasing
agricultural
land
use
negatively
impacting
environment.
Here
we
investigate
effects
microalgal
extracts
high
levels
colourless
carotenoid
phytoene.
Phytoene
widely
available
dietary
sources
can
be
detected
across
different
tissues
in
human
body.
However,
it
usually
regarded
as
precursor
synthesis
other
carotenoids,
rather
than
molecule.
We
utilised
model
organism
C.
elegans
show
phytoene-rich
Chlorella
sorokiniana
Dunaliella
bardawil
anti-ageing
properties.
protect
against
oxidative
damage
amyloid-β
42
proteotoxicity
(a
major
pathology
Alzheimer’s
disease),
extends
lifespan.
pure
phytoene
has
these
suggesting
molecule
positive
ageing
longevity.
In
recent
times,
there
has
been
a
revolutionary
surge
in
antioxidant
research,
with
focus
on
harnessing
microalgae
to
enhance
wellness
and
extend
human
longevity.
Microalgae,
diverse
group
of
unicellular
photosynthetic
organisms,
have
emerged
as
promising
sources
natural
antioxidants
due
their
ability
synthesize
various
bioactive
compounds,
including
carotenoids,
polyphenols,
tocopherols.
These
play
pivotal
role
scavenging
free
radicals
reducing
oxidative
stress,
known
contributors
aging
chronic
diseases.
This
review
provides
an
over-view
advancements
understanding
microalgae’s
potential,
covering
biochemical
composition,
extraction
techniques,
purification
methods.
Moreover,
it
delves
into
compelling
vitro
vivo
studies
showcasing
microalgae-derived
antioxidants’
protective
effects
against
damage,
inflammation,
cardiovascular
diseases,
neurodegenerative
disorders.
The
sustainable
cultivation
controlled
environments
further
supports
the
potential
for
large-scale
production
commercialization
compounds.
As
continue
revolutionize
they
hold
immense
promise
developing
novel
preventive
therapeutic
strategies
promote
health
wellbeing.
Marine Drugs,
Journal Year:
2024,
Volume and Issue:
22(8), P. 358 - 358
Published: Aug. 6, 2024
Fucoxanthin,
a
carotenoid
with
remarkable
antioxidant
properties,
has
considerable
potential
for
high-value
biotechnological
applications
in
the
pharmaceutical,
nutraceutical,
and
cosmeceutical
fields.
However,
conventional
extraction
methods
of
this
molecule
from
microalgae
are
limited
terms
cost-effectiveness.
This
study
focused
on
optimizing
biomass
fucoxanthin
production
Applied Biochemistry and Biotechnology,
Journal Year:
2024,
Volume and Issue:
196(9), P. 6473 - 6491
Published: Feb. 22, 2024
Abstract
Torularhodin
is
a
dark
pink
colored
carotenoid
belonging
to
the
xanthophylls
group
that
can
be
biologically
synthesized
by
red
yeasts,
especially
Rhodotorula
and
Sporobolomyces
genera.
The
growing
interest
in
this
molecule
due
its
biological
activities
such
as
antioxidant,
anticholesterolemic,
anti-inflammatory,
antimicrobial,
anticancer.
To
satisfy
potential
commercial
markets,
numerous
methods
have
been
proposed
develop
cost-effective
environmentally
friendly
downstream
process
for
purification
of
torularhodin.
However,
obtaining
high
purity
products
without
resorting
use
toxic
solvents,
which
leave
residues
final
preparations,
remains
major
challenge.
In
context,
present
study
aimed
new
efficient
method
isolation
torularhodin
from
yeast
strain
ELP2022
applying
extraction
technique
with
supercritical
CO
2
(CO
-SFE)
two
sequential
steps.
particular,
first
step,
dried
lysed
biomass
was
subjected
action
conditions
SC)
sole
solvent
apolar
carotenoids.
second
residual
SC
using
ethanol
polar
co-solvent
Both
steps
were
carried
out
at
different
operating
parameters
temperature
(40
60
°C)
pressure
(from
300
500
bar)
constant
flow
6
L
min
−1
.
Regardless
used,
allowed
obtain
an
orange-colored
oily
extract
red-colored
after
respectively.
all
trials,
represented
no
less
than
95.2%
±
0.70
total
carotenoids
extracts
obtained
step.
best
results
performing
both
40
°C
bar,
maximum
percentage
achieved
97.9%
0.88.
Since
there
are
data
on
selective
recovery
SFE
technique,
may
good
starting
point
optimize
support
development
industrial
production
microbial
synthesis.
This
significantly
reduce
environmental
impact
considered
innovation
Italian
patent
application
has
filed.
circular
bioeconomy
approach,
will
validated
up
pilot
scale,
culturing
spp.
low-cost
media
derived
agri-food
wastes.
Graphical
Nutrients,
Journal Year:
2024,
Volume and Issue:
16(18), P. 3223 - 3223
Published: Sept. 23, 2024
Undernutrition
is
an
important
global
health
problem,
especially
in
children
and
older
adults.
Both
reversal
of
maternal
child
undernutrition
heathy
ageing
have
become
United
Nations-supported
initiatives,
leading
to
increased
attention
nutritional
interventions
targeting
undernutrition.
One
feasible
option
microalgae,
the
precursor
all
terrestrial
plants.
Most
commercially
farmed
microalgae
are
photosynthetic
single-celled
organisms
producing
organic
carbon
compounds
oxygen.
This
review
will
discuss
commercial
opportunities
grow
microalgae.
Microalgae
produce
lipids
(including
omega-3
fatty
acids),
proteins,
carbohydrates,
pigments
micronutrients
so
can
provide
a
suitable
underutilised
alternative
for
addressing
The
benefits
nutrients
derived
from
been
identified,
thus
they
candidates
issues
globally.
potential
microalgae-derived
be
converted
into
food
products.
advantages
cultivation
include
that
it
does
not
need
arable
land
or
pesticides.
Additionally,
most
species
still
unexplored,
presenting
options
further
development.
Further,
usefulness
other
purposes
such
as
bioremediation
biofuels
increase
knowledge
these
microorganisms,
allowing
development
more
efficient
production
interventions.
Scientific Data,
Journal Year:
2025,
Volume and Issue:
12(1)
Published: March 4, 2025
The
coastal
ocean
is
the
dynamic
interface
where
terrestrial,
atmospheric,
and
marine
systems
converge,
acting
as
a
hotspot
for
microbial
activity,
which
underpins
intricate
web
of
carbon
nitrogen
cycling.
Dapeng
Bay,
typical
semi-enclosed
bay
along
southern
coastline
China,
strongly
influenced
by
monsoon
climates
human
activities.
Despite
its
ecological
importance,
long-term
observations
investigations
into
community
structure
in
this
region
are
notably
lacking.
To
address
gap,
we
conducted
two-year
continuous
sampling
from
May
2021
to
June
2023
explore
shifts
nearshore
surface
communities
assess
effects
environmental
stressors.
This
study
presents
comprehensive
amplicon,
metagenomic,
metatranscriptomic
information.
We
identified
3,600
amplicon
sequence
variants
recovered
1,216
high-quality
metagenome-assembled
MAGs,
representing
17
bacterial
3
archaeal
phyla.
Additionally,
587
MAGs
were
correlated
with
transcriptional
comprising
539
48
populations.
dataset
anticipated
provide
multi-dimensional
perspective,
enhancing
our
understanding
complexity,
dynamics,
adaptability
environments.
Journal of Marine Science and Engineering,
Journal Year:
2024,
Volume and Issue:
12(1), P. 99 - 99
Published: Jan. 3, 2024
Carotenoids
are
extensively
used
in
drugs,
cosmetics,
nutrients,
and
foods,
owing
to
their
antioxidant
anti-inflammatory
characteristics.
Diverse
marine
heterotrophic
prokaryotes
can
accumulate
carotenoids
become
promising
alternatives
for
the
advancement
of
production.
In
this
research,
55
strains
were
isolated
cultivated
from
tidal
flat
sediment
Zhoushan
classified
into
phyla
Pseudomonadota
(n
=
24),
Bacillota
18),
Bacteroidota
9),
Actinomycetota
4).
Nine
them
accumulated
carotenoids,
most
belonged
families
Flavobacteriaceae
4)
Erythrobacteraceae
Among
those
carotenoid-producing
strains,
one
strain,
designated
as
D39T,
was
proposed
novel
species
belonging
genus
Croceibacterium
through
polyphasic
taxonomy
approaches.
Genomic
annotations
carotenoid
compound
determinations
revealed
that
strain
D39T
encoded
crtEBIYZG
genes
mainly
zeaxanthin
major
carotenoids.
Furthermore,
biosynthesis
pathway
majority
identical
with
implying
members
be
sources
producing
zeaxanthin.
This
study
enhances
knowledge
microbial
biodiversity
flats,
proposes
a
species,
elucidates
Croceibacterium,
which
contribute
enriching
promoting
comprehensive
insight
genomic
contents
them.