IntechOpen eBooks,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 12, 2025
Algae,
photosynthetic
organisms
ranging
from
microscopic
to
macroscopic
forms,
play
a
critical
role
in
carbon
sequestration,
oxygen
production,
and
maintaining
aquatic
ecosystem
balance.
Their
extensive
applications
pharmaceuticals,
biofuels,
bioproducts
have
positioned
algae
cultivation
as
promising
solution
for
sustainable
resource
production.
Both
microalgae
macroalgae
can
be
cultivated
using
open
systems
(e.g.,
longline
culture,
floating
nets,
bottom
raceway
ponds,
saline
aquaculture)
closed
photobioreactors,
tank
cultures,
fermenters).
While
offer
precise
control
over
growth
conditions
productivity,
are
more
cost-effective
but
susceptible
environmental
variability
contamination.
Integrated
multi-trophic
aquaculture
(IMTA)
enhances
efficiency
by
combining
with
other
species,
supporting
economic
sustainability.
This
chapter
provides
an
in-depth
analysis
of
culture
techniques,
their
industrial
applications,
associated
challenges.
Additionally,
the
examines
future
research
directions
policy
frameworks
advancing
offering
valuable
insights
researchers,
industry
stakeholders,
policymakers.
Green Technologies and Sustainability,
Journal Year:
2023,
Volume and Issue:
2(1), P. 100060 - 100060
Published: Nov. 1, 2023
The
rapid
depletion
of
fossil
fuel
reserves
and
rising
greenhouse
gas
(GHGs)
emissions
have
necessitated
research
into
low-cost
renewable
energy
sources,
with
a
focus
on
algal-derived
biofuels.
Biodiesel,
sustainable
alternative
fuel,
can
be
derived
from
variety
biological
sources
Microalgae-based
biodiesel
production
offers
an
innovative
method
generating
energy.
By
utilizing
advanced
cultivation
techniques,
such
as
photobioreactors
open
pond
systems,
microalgae
grown
efficiently
in
large
quantities.
Furthermore,
various
methods,
lipid
extraction
transesterification,
are
employed
to
convert
the
lipid-rich
biomass
biodiesel.
However,
make
microalgae-based
more
cost-effective
sustainable,
several
challenges
need
addressed,
higher
costs,
reduced
productivity
rates,
potential
environmental
impacts.
Future
opportunities
lie
creating
methods
for
cultivating
harvesting
microalgae,
improving
yields,
effective
conversion
methods.
Overall,
shows
promise
source.
further
development
must
take
place
realize
its
full
reap
rewards.
Fire,
Journal Year:
2024,
Volume and Issue:
7(7), P. 233 - 233
Published: July 3, 2024
Hydrogen
(H2)
is
considered
a
suitable
substitute
for
conventional
energy
sources
because
it
abundant
and
environmentally
friendly.
However,
the
widespread
adoption
of
H2
as
an
source
poses
several
challenges
in
production,
storage,
safety,
transportation.
Recent
efforts
to
address
these
have
focused
on
improving
efficiency
cost-effectiveness
production
methods,
developing
advanced
storage
technologies
ensure
safe
handling
transportation
H2,
implementing
comprehensive
safety
protocols.
Furthermore,
are
being
made
integrate
into
existing
infrastructure
explore
new
opportunities
its
application
various
sectors
such
transportation,
industry,
residential
applications.
Overall,
recent
developments
opened
avenues
clean
sustainable
source.
This
review
highlights
potential
solutions
overcome
associated
with
Additionally,
discusses
achieve
carbon-neutral
society
reduce
dependence
fossil
fuels.
ES General,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Jan. 1, 2024
In
this
growing
world
with
new
developing
technologies,
the
sector
of
science
and
analysis
are
accenting
a
lot
for
searching
out
an
altered
way
which
would
be
considered
as
environmentally
compatible
propellant
over
fossil
fuels.With
growth
human
population,
need
sustainable
resources
energy
has
increased
since
large-scale
utilization
fuels
lead
to
absence
viable
our
future
progeny
so
that
we
renewable
clean
sources
called
Green
Energy
Resources.Biodiesel
is
one
such
form
green
energy.In
recent
decades
production
biodiesel
from
algal
biomass
been
taken
up
petrochemical-based
propellant.The
requirement
cropland
also
less
in
terms
Algal
cultivation
neither
it
requires
intricate
operations
its
cultivation.As
worldwide
still
being
formulation
bio-based
might
roseate
several
divisions
sought
huge
people's
interest
development
fuel
fourth
generation
analyzing
prospects
biofuels.On
other
hand,
Fermentation,
Journal Year:
2024,
Volume and Issue:
10(5), P. 259 - 259
Published: May 15, 2024
Porphyridium
aerugineum
is
a
unicellular
freshwater
red
microalga
that
synthesizes
and
secretes
into
the
culture
medium
an
extracellular
polysaccharide
(EPS).
In
this
study,
algal
growth
production,
as
well
antioxidant
capacity
antitumor
effect
of
EPS
(PaEPS),
were
investigated.
Cultivation
microalgae
was
carried
out
in
photobioreactor
under
controlled
conditions.
Algal
amount
monitored
daily.
The
accumulated
extracted
lyophilized.
At
end
cultivation,
concentration
microalgal
biomass
PaEPS
reached
3.3
1.2
g
L−1,
respectively.
To
examine
PaEPS,
FRAP
ABTS
assays
performed.
cytotoxic
activity
evaluated
on
tumor
cell
lines
MCF-7
(breast
cancer)
HeLa
(cervical
adenocarcinoma)
BJ
(a
non-tumor
human
skin
fibroblast
line),
using
MTT
assay.
results
obtained
indicated
P.
exhibited
high
radical-scavenging
reaching
up
to
55%.
best
expressed
cells
treated
for
72
h
with
1000
µg/mL
where
proliferation
inhibited
by
more
than
70%.
Importantly,
treatments
did
not
significantly
affect
viability
cells.
These
findings
promote
biotechnological
production
reveal
its
potential
anticancer
agent
future
applications.
