Harnessing Aromatic Properties for Sustainable Bio-valorization of Lignin Derivatives into Flavonoids
Siyu Zhu,
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Na Li,
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Zhihua Liu
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et al.
Green Carbon,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Jan. 1, 2025
Language: Английский
Engineering Saccharomyces cerevisiae for De Novo Biosynthesis of 3′-Hydroxygenistein
Xinjia Tan,
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Zhiqiang Xiao,
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Siqi Zhang
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et al.
Journal of Agricultural and Food Chemistry,
Journal Year:
2025,
Volume and Issue:
unknown
Published: Feb. 13, 2025
The
polyhydroxy
isoflavone
3′-hydroxygenistein
(3′-OHG)
has
a
wide
range
of
pharmaceutical
and
nutraceutical
benefits.
Therefore,
it
is
important
to
develop
an
efficient
sustainable
method
for
3′-OHG
production.
Here,
we
engineered
the
metabolic
pathways
Saccharomyces
cerevisiae
achieve
de
novo
biosynthesis
3′-OHG.
First,
screened
2-hydroxyisoflavanone
synthase
(IFS),
cytochrome
P450
reductase,
dehydratase
from
different
sources
optimized
best
combination
via
promoter
engineering.
Next,
demonstrated
that
amplification
rate-limiting
enzyme
PlIFS
Pueraria
lobata
improved
genistein
Increasing
availability
cofactor
heme
further
increased
titer
44.55
±
1.82
mg/L.
Subsequently,
screening
multicopy
integration
isoflavone-3′-hydroxylase
achieved
13.23
0.27
mg/L
100
naringenin.
Finally,
1.40
0.02
could
be
pathway.
final
strain
generated
in
this
study
will
facilitate
production
isoflavones
biosynthetic
Language: Английский
Efficient hydroxylation of flavonoids by using whole-cell P450 sca-2 biocatalyst in Escherichia coli
Baodong Hu,
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Xinrui Zhao,
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Jingwen Zhou
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et al.
Frontiers in Bioengineering and Biotechnology,
Journal Year:
2023,
Volume and Issue:
11
Published: Feb. 15, 2023
The
hydroxylation
is
an
important
way
to
generate
the
functionalized
derivatives
of
flavonoids.
However,
efficient
flavonoids
by
bacterial
P450
enzymes
rarely
reported.
Here,
a
sca-2
mut
whole-cell
biocatalyst
with
outstanding
3′-hydroxylation
activity
for
variety
was
first
enhanced
using
novel
combination
flavodoxin
Fld
and
reductase
Fpr
from
Escherichia
coli.
In
addition,
double
mutant
(R88A/S96A)
exhibited
improved
performance
through
enzymatic
engineering.
Moreover,
further
optimization
biocatalytic
conditions.
Finally,
eriodictyol,
dihydroquercetin,
luteolin,
7,3′,4′-trihydroxyisoflavone,
as
examples
flavanone,
flavanonol,
flavone,
isoflavone,
were
produced
biocatalysis
naringenin,
dihydrokaempferol,
apigenin,
daidzein
substrates,
conversion
yield
77%,
66%,
32%,
75%,
respectively.
strategy
used
in
this
study
provided
effective
method
other
high
value-added
compounds.
Language: Английский