Applied Phycology,
Год журнала:
2024,
Номер
5(1), С. 37 - 53
Опубликована: Авг. 1, 2024
Marine
microalgae
offer
significant
potential
as
sustainably
cultivable
microorganisms
for
the
biorefining
of
a
diverse
array
functional
metabolites.
In
this
study,
three
species
marine
microalgae,
Tetraselmis
chuii
Butcher
CCAP
66/21B
(Chlorophyte),
Phaeodactylum
tricornutum
Bohlin
1052/1
(Diatom)
and
Amphidinium
carterae
Hulburt
1102/8
(Dinoflagellate),
were
batch
cultivated
their
biomass
retrieved
analysis
in
terms
pigment
fatty
acid
composition
well
bioactivity
potential.
Sequential
solvent
maceration
returned
extracts
was
used
to
determine
antioxidant
capacity
assess
growth
inhibition
against
A549
(a
human
lung
carcinoma)
MCF-7
breast
cell
lines.
The
A.
showed
higher
(≤
33.5
μmol
Trolox
Equivalent
mg
Recovered
Dried
Material‒1)
compared
other
extracts.
No
major
cytotoxic
activity
nor
production
reactive
oxygen
observed
using
T.
P.
tricornutum.
However,
methanolic
extraction
inhibited
both
cells
(<
4%)
at
25,
50
100
µg
ml−1
concentrations,
determined
MTS
assay
AO/PI
staining.
Microalgal
metabolites
have
practical
applications
variety
industrial
sectors.
absence
toxicity
substantial
confirm
suitability
incorporation
into
animal
feeds
or
nutrition
supplements.
also
appears
be
promising
source
bioactives
that
can
further
valorized
via
multi-compound
biorefinery
pipelines.
Applied Phycology,
Год журнала:
2025,
Номер
unknown, С. 1 - 22
Опубликована: Янв. 8, 2025
Natural
antioxidant
compounds
from
plants
can
contribute
to
pharmacological
activities
by
neutralizing
free
radicals.
Limited
research
has
explored
the
phytochemical
characteristics
of
filamentous
green
algae
and
their
properties.
In
this
study,
three
algal
species,
Oedogonium
angustistomum,
Ulothrix
variabilis
Mougeotia
pulchella
(Chlorophyceae),
were
isolated
freshwater
ecosystems
Kerala,
constituents,
total
phenol
flavonoid
contents
evaluated.
The
study
investigated
whether
sequential
extraction
with
solvents
varying
polarity,
such
as
petroleum
benzine,
acetone,
methanol,
water
methanol
crude
(70%
methanol),
would
affect
phenolic
algae.
Results
indicated
that
extracts
had
highest
yield
in
aqueous
Oedogonium,
while
benzine
fractions
yielded
lowest.
Preliminary
analysis
showed
presence
reducing
sugars,
flavonoids,
triterpenoids
acetone
extract,
which
contained
more
compounds.
There
higher
extracts,
except
for
Mougeotia,
extract
content.
differing
effects
on
activity
content
among
different
polarities.
promising
being
potent
free-radical
scavengers
DPPH,
nitric
oxide
hydroxyl
radicals,
respectively.
was
a
prominent
scavenger
superoxide
A
concentration-dependent
inhibition
oxide,
radicals
anion
observed
extracts.
studied
appear
contain
significant
amounts
antioxidants,
might
prevent
progression
various
oxidative
stresses
vitro.
To
be
considered
clinical
use
pharmaceutical
or
nutraceutical
industries,
must
assessed
vivo
activity.
Pharmaceuticals,
Год журнала:
2025,
Номер
18(3), С. 373 - 373
Опубликована: Март 6, 2025
The
skin
is
one
of
the
largest
and
most
important
organs
our
body.
There
are
numerous
factors
that
related
to
health,
including
lifestyle
factors,
nutrition,
or
care.
Bioactive
substances
from
plant
marine
extracts
play
a
key
role
in
health.
aim
this
research
was
compile
main
evidence
on
bioactive
substances.
An
integrative
review
performed,
reporting
findings
according
PRISMA
(2020).
Thirteen
search
equations
were
developed.
After
applications
process
screening
selection
articles,
95
references
compiled.
results
compounds
classified
into
food-derived
components,
nutraceuticals,
symbiotics,
active
origin,
extracts).
several
indicate
use
interesting
for
highlighting
some
dietary
nutrients,
obtained
metabolites
origin
that,
showing
anti-inflammatory
antimicrobial
effects,
improvement
conditions
principles
cosmetics.
Benha Journal of Applied Sciences,
Год журнала:
2024,
Номер
9(3), С. 187 - 196
Опубликована: Март 1, 2024
Microalgae
are
a
potentially
valuable
source
of
structurally
different
and
biologically
active
compounds
experiencing
pharmaceutical
nutraceutical
value.
Here
we
compared
the
antioxidant,
in
vitro
antimicrobial
activity,
anticancer
potential
widely
investigated
green
microalga
Tetradesmus
obliquus
less-studied
unicellular
species
Myrmecia
bisecta.
Based
on
our
findings,
T.
extracts
had
much
more
outstanding
antioxidant
potentials
than
those
M.
bisecta
where
IC50
values
DPPH˙
ABTS˙+
were
16.18
23.35
µg.ml-1
vs.
20.21
26.05
bisecta,
respectively.
Interestingly,
antibacterial
activity
extract
against
tested
human
pathogenic
bacterial
strains
was
powerful
obliquus,
i.e.,
45.2%
25.3%
inhibition
32.3%
14.20%
Escherichia
coli
Staphylococcus
aureus,
Both
microalgal
showed
significant
cytotoxic
effects
HepG2
cell
line
with
36.44
40.12
for
Also,
both
two
WI-38
65.63
61.74
results,
reasonable
candidates
future
applications
manufacturing.
Abstract
Microalgae
are
considered
promising
sustainable
sources
of
natural
bioactive
compounds
to
be
used
in
biotechnological
sectors.
In
recent
years,
attention
is
increasingly
given
the
search
microalgae-derived
with
antioxidant
and
anti-inflammatory
properties
for
nutraceutical
or
pharmacological
issues.
this
context,
usually
focused
on
composition
bioactivity
algae
their
extracts,
while
less
interest
driven
biological
features,
example,
those
related
morphology
cultivation
conditions.
addition,
specific
studies
microalgae
mainly
concern
Chlorella
Spirulina
.
The
present
work
was
characterization
Chlorophyta
Neochloris
oleoabundans
under
two
combinations
modes:
autotrophy
glucose-induced
mixotrophy,
each
followed
by
starvation.
Biomass
morphological
biochemical
characterization,
as
well
extract
preparation,
harvested
at
end
phase.
Analyses
indicated
a
different
content
most
important
classes
antioxidant/anti-inflammatory
(lipids,
exo-polysaccharides,
pigments,
total
phenolics,
proteins).
particular,
condition
able
prompt
production
algal
biomass
mixotrophic
one.
Under
beside
an
elevated
production,
strong
photosynthetic
metabolism
high
appression
thylakoid
membranes
characteristics
photo-protection
from
oxidative
damage
observed
linked
overproduction
exo-polysaccharides
lipids
rather
than
pigments.
Overall,
mixotrophy
appears
good
choice
produce
potentially
tolerated
human
environmentally
sustainable.
Cleaner Water,
Год журнала:
2024,
Номер
2, С. 100028 - 100028
Опубликована: Июль 20, 2024
People
are
exposed
to
extreme
levels
of
UV
radiation
from
the
sun
which
gives
a
harmful
effect
on
skin.
A
prevention
step
should
be
taken
such
as
applying
protective
layer
that
able
protect
skin
rays.
Hence,
contain
antioxidant
components
prevent
formation
free
radicals.
Microalgae
and
bioactive
can
derived
them
thought
viable
raw
material
replacements
in
cosmetics
pharmaceutical
industries.
In
this
study,
carotenoid
compounds
with
characteristics
neoxanthin
cryptoxanthin
were
successfully
identified
Chlorella
sp.
by
LC‑QTOF
have
been
reported
give
shield
aging.
Meanwhile,
phenolic
through
also
an
active
compound
sunscreen
products.
Besides,
identification
polysaccharide
was
done
FTIR
analysis,
presence
functional
group
identified.
Polysaccharides
excellent
anti-wrinkles
characteristic.
The
alginate
analyses
based
peaks
formed.
has
radical
scavenging.
Therefore,
applicable
for
skincare
products
phenolics
compound,
carotenoids,
polysaccharides
