Microalgae
are
photosynthetic
microorganisms
which
can
grow
under
a
large
spectrum
of
conditions
and
may
produce
number
valuable
products.
However,
increased
chlorophyll
concentration
constitutes
limiting
factor,
especially
in
large-scale
photo-bioreactors,
causing
“shadow
effect”
negatively
influences
biomass
productivity.
The
main
scope
the
present
study
was
to
select
low
content
strain
Stichococcus
sp.,
order
increase
light
penetration
into
culture
photo-bioreactors.
Selection
through
random
mutation
using
ethyl
methanesulfonate
(EMS).
Two
promising
mutants
(EMS1
&
EMS2)
were
isolated
cultivated
for
three
generations
on
solid
medium
(petri
dishes).
selected
strains
then
open
beaker
glassware
with
200
mL
F/2
medium,
diluted
natural
seawater,
sterile
conditions.
EMS1,
best
performing
mutant
strain,
exhibited
lower
(43%),
higher
(12%),
lipids
(45%),
carbohydrates
(28%)
production,
compared
wild
type.
EMS1
proved
contain
least
(6.29
±
0.52
mg
g-1),
yet
highest
(2.47
0.10
g
L-1),
(21%
dry
biomass),
(44%
biomass)
type
strain.
Protein
did
not
differ
significantly
among
strains.
sp.
has
high
potential
further
investigation
production
various
bio-chemicals.
Environmental Science and Ecotechnology,
Journal Year:
2024,
Volume and Issue:
21, P. 100420 - 100420
Published: April 12, 2024
Chlorinated
organic
pollutants
constitute
a
significant
category
of
persistent
due
to
their
widespread
presence
in
the
environment,
which
is
primarily
attributed
expansion
agricultural
and
industrial
activities.
These
are
characterized
by
persistence,
potent
toxicity,
capability
for
long-range
dispersion,
emphasizing
importance
eradication
mitigate
environmental
pollution.
While
conventional
methods
removing
chlorinated
encompass
advanced
oxidation,
catalytic
bioremediation,
utilization
biochar
has
emerged
as
prominent
green
efficacious
method
recent
years.
Here
we
review
biochar's
role
remediating
typical
organics,
including
polychlorinated
biphenyls
(PCBs),
triclosan
(TCS),
trichloroethene
(TCE),
tetrachloroethylene
(PCE),
organochlorine
pesticides
(OCPs),
chlorobenzenes
(CBs).
We
focus
on
impact
material
properties
adsorption
mechanisms
organics.
This
highlights
use
sustainable
eco-friendly
pollutants,
especially
when
combined
with
biological
or
chemical
strategies.
Biochar
facilitates
electron
transfer
efficiency
between
microorganisms,
promoting
growth
dechlorinating
bacteria
mitigating
toxicity
organics
through
adsorption.
Furthermore,
can
activate
processes
such
oxidation
nano
zero-valent
iron,
generating
free
radicals
decompose
compounds.
observe
broader
application
bioprocesses
treating
soil,
reducing
impacts.
Conversely,
water-based
integrating
proved
more
effective,
leading
superior
purification
results.
contributes
theoretical
practical
pollutants.
Energies,
Journal Year:
2023,
Volume and Issue:
16(14), P. 5378 - 5378
Published: July 14, 2023
Microalgae
hold
promise
as
a
sustainable
source
of
biofuels
and
bioproducts
but
their
commercial
development
is
impeded
by
high
cultivation
costs,
primarily
for
growth
nutrients,
concerns
about
the
water-intensive
nature
algae
cultivation.
As
result,
minimizing
water
nutrient
input
imperative
to
reducing
algal
operating
while
enhancing
sustainability
future
biorefineries.
However,
spent
media
recycling
often
results
in
accumulation
inhibitors,
such
free
fatty
acids,
polysaccharides,
polyunsaturated
aldehydes,
humic
acid,
which
negatively
affect
productivity.
In
this
review,
we
critically
assess
research
findings
advantages
disadvantages
reuse
wide
range
strains.
Particular
emphasis
placed
on
strategies
overcome
inhibition
through
treatment
processes,
ultraviolet
oxidation,
activated
carbon,
ultrasonication,
microfiltration,
crop
rotation,
replenishment.
