Small,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 1, 2024
Abstract
Cooperative
photobiocatalytic
processes
have
seen
extensive
potentials
for
the
synthesis
of
both
bulk
and
fine
chemicals
owing
to
their
versatility,
eco‐friendliness,
cost‐effectiveness.
Nevertheless,
developing
a
universal
effective
synthetic
strategy
compatible
with
catalytic
systems
remains
challenging.
In
this
study,
we
explored
cationic
liposomes
as
biocompatible
photocatalyst
encapsulation
combined
them
bacteria
overexpressing
enzymes
two‐step
three‐step
cascade
reactions.
Specifically,
water‐soluble
anthraquinone‐2‐sulfonate
(AQS),
which
can
oxidize
benzyl
alcohol,
is
encapsulated
within
core
composed
dioleoyl‐3‐trimethylammonium
propane
(DOTAP)
helper
lipid
cholesterol.
The
positive
charge
on
liposome
surface
enabled
electrostatic
interactions
negative
charges
membrane
Escherichia
coli
cells.
Bacterial
cells
various
enzymes,
such
Candida
antarctica
lipase
B
(CalB)
benzaldehyde
lyase
(BAL),
coated
production
added
value
compounds
through
reactions
excellent
production.
These
cascades
involve
CalB‐catalyzed
hydrolysis,
BAL‐catalyzed
condensation,
AQS‐driven
photo‐oxidation
Therefore,
offers
more
possibilities
combining
photocatalysis
biocatalysis
recoverability,
enhanced
mass
transfer,
compatibility
in
industrial
biotechnology
chemistry.
Direct
conversion
of
inexpensive
fructose
into
value-added
furanic
chemicals
via
chemobiocatalytic
cascades
is
a
highly
attractive
yet
challenging
task
due
to
the
incompatibility
issues
between
chemo-
and
biocatalysts.
Among
issues,
solvent
crucial
make
two
worlds
catalysts
work
well
in
one
pot.
In
this
work,
we
present
an
enzyme-friendly
natural
deep
eutectic
(NADES)-based
medium
for
one-pot
valorization
valuable
furanics
5-hydroxymethylfurfural
(HMF).
HMF
was
obtained
with
approximately
40%
yield
64%
selectivity
within
1.5
h
under
150
°C
15
wt
%
NADES
(choline
chloride/oxalic
acid,
1:1,
mol/mol)
aqueous
solution.
significantly
improved
91%
by
applying
vol
methyl
isobutyl
ketone/NADES
biphasic
medium.
A
NADES/unreacted
recycle
process
designed
improve
both
overall
(77%)
(72%).
The
NADES-based
benign
toward
various
biocatalysts
such
as
alcohol
aldehyde
dehydrogenases,
acyltransferase,
ω-transaminase,
evidenced
good
yields
(86–97%)
desired
products
subsequent
biotransformations.
Specifically,
2,5-bis(hydroxymethyl)furan
from
41%
isolated
gram-scale
synthesis.
This
may
lay
foundation
sustainable
manufacture
high-value
biomass.
Catalysis Communications,
Journal Year:
2024,
Volume and Issue:
187, P. 106898 - 106898
Published: Feb. 1, 2024
The
CuO-supported
MCM-41
catalysts
were
prepared
using
a
simple
incipient
wet
impregnation
method.
investigated
for
hydrogenation
of
furfural
to
furfuryl
alcohol
synthesis.
Among
all
the
catalysts,
2.5%
CuO/MCM-41
catalyst
shows
best
catalytic
performance
with
92.5%
conversion
and
89%
selectivity
at
210
°C.
also
demonstrated
high
turnover
frequency
(TOF)
154.4
h−1.
remained
stable
up
20
h
during
time
on
stream.
Journal of Materials Chemistry A,
Journal Year:
2023,
Volume and Issue:
11(31), P. 16559 - 16569
Published: Jan. 1, 2023
Bi-doped
lead
oxide
improves
selectivity
for
maleic
acid
production
from
electrochemical
furfural
oxidation
by
modulating
the
states
of
Pb
and
consequentially
suppressing
over-oxidation
reaction
to
CO
2
compared
oxide.
Green Chemistry,
Journal Year:
2023,
Volume and Issue:
25(19), P. 7764 - 7773
Published: Jan. 1, 2023
This
work
presents
an
efficient
route
for
upgrading
corncob
to
furfuryl
alcohol
using
a
novel
silica-supported
SO
4
2−
-TiO
2
catalyst
and
recyclable
magnetic
hydrogel
beads
containing
recombinant
E.
coli
whole-cells
in
sustainable
approach.
Current Opinion in Biotechnology,
Journal Year:
2023,
Volume and Issue:
85, P. 103058 - 103058
Published: Dec. 27, 2023
For
the
valorization
of
various
bio-based
feedstocks,
combination
different
catalytic
systems
with
biocatalysis
in
chemoenzymatic
cascades
has
been
shown
to
have
high
potential.
However,
development
such
integrated
is
often
limited
by
catalyst
incompatibility.
Therefore,
incorporating
novel
concepts
into
feedstocks
currently
great
interest.
This
article
provides
an
overview
methods/approaches
used
advance
for
upgrading
feedstocks.
It
specifically
focuses
on
recent
developments
enzymes
organo-
and
chemocatalysis.
Furthermore,
current
applications
future
perspectives
integrating
as
photo-
electrocatalysis
toward
new
synthetic
routes
utilization
highly
functionalized
compounds
are
reviewed.
Journal of Catalysis,
Journal Year:
2023,
Volume and Issue:
428, P. 115182 - 115182
Published: Oct. 24, 2023
Metallo-porphyrins
have
a
wide
range
of
applications
in
both
industrial
and
academic
research.
This
study
presents
newly
designed
heterogeneous
catalysts
comprised
cobalt-porphyrin
immobilized
on
amino-functionalized
multi-walled
carbon
nanotubes
(CNT-NH2),
which
been
synthesized
characterized
for
potential
applications.
Five
different
porphyrin
structures
were
utilized,
the
catalyst
was
thoroughly
by
various
spectroscopic
techniques,
including
XRD,
FT-IR,
UV–Vis,
1H
NMR,
MALDI-FT-ICR
MS,
N2
adsorption,
XPS,
SEM-EDS.
The
investigated
catalytic
activity
CNT-NH2
conversion
furfural
to
succinic
acid
using
molecular
oxygen,
with
excellent
selectivity
89
%
yield
60
after
20
h
reaction
at
100
°C,
3.0
MPa
oxygen
pressure.
showed
exceptional
stability
upon
multiple
reuse,
indicating
negligible
loss,
highlighting
its
efficient
aerobic
oxidation
biomass-derived
platform
chemicals
into
valuable
end-products,
underscoring
promise
as
catalyst.
