ACS Sustainable Chemistry & Engineering,
Journal Year:
2024,
Volume and Issue:
12(37), P. 13960 - 13971
Published: Sept. 3, 2024
Thoughtful
utilization
of
the
entire
lignocellulose
is
important
to
achieve
sustainable
and
cost-effective
biorefineries.
However,
there
a
trade-off
between
efficiently
utilizing
carbohydrates
stabilizing
lignin
aryl
ether
structure
due
recalcitrance
heterogeneity
biomass.
This
work
proposed
ball-milling-assisted
alkaline
deep
eutectic
solvents
(quaternary
ammonium
hydroxides
with
monoethanolamine)
mechanochemical
fractionation
process
extract
high-value
amphiphilic
lignin-carbohydrate
complexes
(LCCs)
by
preserving
phenyl
glycosidic
bonds
while
coproducing
high-quality
cellulose
Xylan.
Results
showed
that
high
saccharification
efficiency
(74.2–96.4%)
was
achieved
nearly
100%
recovery.
The
resulting
LCCs
Xylan
were
not
subjected
undesired
chemical
structural
modifications,
exhibiting
extremely
β-O-4
bond
contents
(48.8/100
Ar)
favorable
carbohydrate
properties,
respectively.
It
calculated
100
g
original
straw
could
produce
31.1
glucose,
9.6
LCCs,
12.3
in
cascade
using
this
route.
effects
enhance
selective
destruction
hydrogen-bonding
networks,
which
allowed
subsequent
three
value-added
products
adjusting
solution
properties.
In
short,
provided
mild
efficient
for
whole-component
lignocellulose,
has
great
potential
biorefinery
applications.
