Current Research in Microbial Sciences,
Journal Year:
2024,
Volume and Issue:
7, P. 100305 - 100305
Published: Jan. 1, 2024
Pollution
from
fossil
fuel
usage
coupled
with
its
unsustainability
is
currently
instigating
a
global
drive
for
affordable
and
eco-friendly
alternatives.
A
feasible
replacement
seems
to
be
microbial
biofuels.
However,
the
production
cost
still
high,
partly
due
of
substrates
media.
Microalgae,
yeasts,
moulds
bacteria
can
grow
on
cheap
easily
available
agricultural
waste
produce
bioethanol,
biogas,
biobutanol,
acetone
and/or
lipids
biodiesel.
Oleaginous
microbes,
such
as
several
species
Carbon Resources Conversion,
Journal Year:
2024,
Volume and Issue:
unknown, P. 100245 - 100245
Published: April 1, 2024
This
study
demonstrates
the
conversion
of
sugarcane
bagasse
(SB)
into
single
cell
oil
(SCO),
sulfonated
carbon-based
catalyst
and
biodiesel;
this
process
aligns
with
waste-to-energy
circular
bioeconomy
concepts.
SB
was
treated
dilute
sulfuric
acid
to
achieve
hydrolysate
(SBH)
solid
residue
(SBS).
Candida
tropicalis
KKU-NP1,
a
newly
isolated
yeast,
accumulated
SCO
content
26.5
%
from
undetoxified
SBH
medium.
A
novel
(SBS@SC)
generated
SBS
by
one-step
hydrothermal
sulfonation
process.
It
showed
significant
catalytic
activity
for
SCO-rich
KKU-NP1
wet
biodiesel
(FAME)
under
direct
transesterification
optimal
conditions,
FAME
yield
90.1
%.
Based
on
profile,
most
estimated
physicochemical
fuel
properties
were
within
limits
ASTM
D6751
EN
14214
standards.
For
integrated
final
production
about
12.0
g
SCO,
606.3
SBS@SC
10.8
1000
raw
achieved.
highlights
utilization
as
low-cost
feedstock
producing
multiple
value-added
products,
emphasizing
advantages
waste
biorefinery
concept,
yielding
practically
no
by-products
over
whole
Deleted Journal,
Journal Year:
2025,
Volume and Issue:
7(4)
Published: April 10, 2025
Abstract
Rising
fuel
security
challenges
can
be
addressed
by
utilizing
potential
and
renewable
energy
feedstocks
such
as
microalgae.
This
study
focuses
on
biodiesel
production
from
Desmodesmus
armatus
NCIM
5583
optimizing
biomass
productivity
lipid
content.
Independent
optimization
experiments
were
performed
to
key
growth
parameters,
viz.,
light
intensity,
photoperiod,
NaNO
3
concentration.
Growth
conditions
with
40
µmol/m
2
/s
20
h
L:04
D
0.25
g/L
concentration
exhibited
highest
of
26.51
±
1.1
mg/L
d
yield
45.1
0.16%
(w/w).
Further,
CaO
bionanocatalyst
synthesized
using
waste
eggshells
characterized
SEM,
EDX,
FT-IR,
XRD.
The
results
SEM
EDX
confirmed
the
structural
elemental
composition
Ca
O
main
elements.
XRD
revealed
crystalline
nature
a
particle
size
28.74
nm.
Lipid
transesterification
catalyst
yielded
84
0.2%
(w/w)
FAME
was
analyzed
1
H
NMR,
13
C
GC–MS.
presence
methyl
ester
group,
implying
conversion
microalgal
lipids
biodiesel.
findings
this
demonstrate
D.
for
application
catalysts.
