New Phytologist,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 10, 2024
Summary
Nannochloropsis
oceanica
is
an
industrially
relevant
marine
microalga
rich
in
eicosapentaenoic
acid
(EPA,
a
valuable
ω‐3
polyunsaturated
fatty
acid),
yet
the
algal
production
potential
remains
to
be
unlocked.
Here
we
engineered
N.
synthesize
high‐value
carotenoid
astaxanthin
independent
of
high‐light
(HL)
induction
for
achieving
multifaceted
benefits.
By
screening
β‐carotenoid
ketolases
and
hydroxylases
various
origins,
strategically
manipulating
compartmentalization,
fusion
patterns,
linkers
enzyme
pair,
remarkable
133‐fold
increase
content
was
achieved
.
Iterative
metabolic
engineering
efforts
led
further
increases
synthesis
up
7.3
mg
g
−1
,
highest
reported
microalgae
under
nonstress
conditions.
Astaxanthin
found
photosystem
components
allowed
alga
HL
resistance
augmented
EPA
production.
Besides,
co‐production
by
through
fed‐batch
cultivation
approach.
Our
findings
unveil
untapped
as
robust,
light‐driven
chassis
constitutive
provide
feasible
strategies
concurrent
multiple
biochemicals
from
CO
2
thereby
paving
way
sustainable
biotechnological
applications
this
alga.
Biotechnology for Biofuels and Bioproducts,
Journal Year:
2024,
Volume and Issue:
17(1)
Published: Feb. 15, 2024
Abstract
The
cultivation
of
microalgae
and
microalgae–bacteria
consortia
provide
a
potential
efficient
strategy
to
fix
CO
2
from
waste
gas,
treat
wastewater
produce
value-added
products
subsequently.
This
paper
reviews
recent
developments
in
fixation
treatment
by
single
microalgae,
mixed
consortia,
as
well
compares
summarizes
the
differences
utilizing
different
microorganisms
aspects.
Compared
monoculture
consortium
may
mitigate
environmental
risk,
obtain
high
biomass,
improve
efficiency
nutrient
removal.
applied
include
Chlorella
sp.,
Scenedesmus
Pediastrum
Phormidium
sp.
among
others,
most
strains
belong
Chlorophyta
Cyanophyta.
bacteria
are
mainly
activated
sludge
specific
sewage
sources.
Bioengineer
CBB
cycle
cells
effective
achieve
improvement
or
yield
high-value
products.
mechanisms
removal
microbial
systems
also
explored
concluded,
importance
technology
is
proven.
After
cultivation,
biomass
can
be
harvested
through
physical,
chemical,
biological
magnetic
separation
methods
used
by-products,
such
biofuel,
feed,
food,
biochar,
fertilizer,
pharmaceutical
bio-compounds.
Although
this
has
brought
many
benefits,
some
challenging
obstacles
limitation
remain
for
industrialization
commercializing.
Graphical
Current Opinion in Green and Sustainable Chemistry,
Journal Year:
2024,
Volume and Issue:
46, P. 100895 - 100895
Published: Feb. 13, 2024
This
short
paper
suggests
a
review
of
the
latest
developments
and
current
challenges
associated
with
carbon
dioxide
capture,
utilization
storage.
Recent
research
has
been
conducted
to
reduce
energy
consumption,
costs
improve
efficiency.
In
capture
catalysts
have
added
solvents
while
new
membrane
sorbent
materials
investigated.
mineral
storage,
studies
carried
out
reaction
rates.
Regarding
path,
attention
focused
on
development
sustainable
chemical
(mainly
based
electrochemical
conversion),
biochemical
routes
power
generation.
Considering
respective
challenges,
future
effort
should
be
toward
optimization
these
systems
at
all
levels,
public
acceptance
policies
regulations
for
their
spread.
Scientific Reports,
Journal Year:
2023,
Volume and Issue:
13(1)
Published: June 22, 2023
Large
amount
of
plastic
wastes
harming
the
environment
have
raised
concerns
worldwide
on
finding
alternatives
to
non-biodegradable
plastics.
Microalgae
has
been
found
as
a
potential
source
for
bioplastic
production,
besides
its
more
common
application
in
pharmaceutical
and
nutraceutical
industry.
In
this
study,
objective
was
techno-economically
evaluate
large-scale
co-production
Spirulina
powder
food
supplements
edible
packaging.
The
scale
production
large
enough
satisfy
1%
local
(Thailand)
demand
(i.e.,
approx.
1200
MT
y-1),
global
(approx.
1000
y-1)
supplements.
Results
showed
that
revealed
an
attractive
venture
with
payback
time
(PBT)
low
2.6
y
ROI
high
38.5%.
This
because
revenues
generated
were
US$
55.6
million
y-1,
despite
capital
(US$
55.7
million)
operating
34.9
costs.
Sensitivity
analysis
differences
profitability
based
variations
major
parameters
where
split
ratio
biomass
used
supplement
versus
bioplastic's
selling
price
be
most
sensitive.
Plants,
Journal Year:
2023,
Volume and Issue:
12(13), P. 2476 - 2476
Published: June 28, 2023
Microalgae
are
used
in
various
biotechnological
processes,
such
as
biofuel
production
due
to
their
high
biomass
yields,
agriculture
biofertilizers,
of
high-value-added
products,
decontamination
wastewater,
or
biological
models
for
carbon
sequestration.
The
number
these
applications
is
increasing,
and
such,
any
advances
that
contribute
reducing
costs
increasing
economic
profitability
can
have
a
significant
impact.
Nitrogen
fixing
organisms,
often
called
diazotroph,
also
great
potential,
mainly
an
alternative
chemical
fertilizers.
Microbial
consortia
typically
perform
more
complex
tasks
than
monocultures
execute
functions
challenging
even
impossible
individual
strains
species.
Interestingly,
microalgae
diazotrophic
organisms
capable
embrace
different
types
symbiotic
associations.
Certain
corals
lichens
exhibit
this
relationship
nature,
which
enhances
fitness.
However,
be
artificially
created
laboratory
conditions
with
the
objective
enhancing
some
processes
each
organism
carries
out
independently.
As
result,
utilization
garnering
interest
potential
yields
biomass,
well
producing
derived
products
serving
purposes.
This
review
makes
effort
examine
associations
aim
highlighting
improving
processes.
