ACS Sustainable Chemistry & Engineering,
Journal Year:
2023,
Volume and Issue:
11(41), P. 15091 - 15101
Published: Oct. 5, 2023
The
introduction
of
rigid
cyclic
monomers
into
the
poly(butylene
succinate)
(PBS)
backbone
is
most
common
way
to
elevate
its
low
glass-transition
temperature
(Tg
=
−30.0
°C).
However,
insertion
units
always
leads
very
poor
crystallinity
and
molecular
weight,
which
drastically
hinder
their
industrial
applications.
Herein,
a
renewable
diester
N,N′-trans-1,4-cyclohexane-bis(pyrrolidone-4-methyl
carboxylate)
(CBPC)
was
obtained
via
Michael
addition.
CBPC
with
linked
rings
had
high
spatial
mobility,
resulting
in
reaction
reactivity.
A
series
biobased
PBCxBSy
copolyesters
were
prepared
by
melt
polycondensation
succinic
acid
1,4-butanediol,
achieving
high-number-average
weight
up
44.5
kDa.
led
higher
thermal
stability
dramatically
enhanced
Tg,
such
that
Tg
PBC80BS20
(87.5
°C)
surpassed
PBS
(−30.0
over
117.5
°C.
Moreover,
showed
an
unexpected
cocrystallization
behavior,
bulky
tricyclic
structure
could
be
inserted
crystal
formed
homogeneous
crystalline
structure.
deeply
analyzed
thermodynamic
study
density
functional
theory
calculation.
Benefiting
from
cocrystallization,
distinguished
mechanical
performances,
matched
or
excelled
those
commercial
polyesters
polyethylene
terephthalate,
polybutylene
polylactic
acid.
Accordingly,
regarded
as
effective
building
block
spectacularly
improve
thermal,
mechanical,
performances
at
same
time.
Molecules,
Journal Year:
2024,
Volume and Issue:
29(10), P. 2275 - 2275
Published: May 11, 2024
The
hydrolysis
and
biotransformation
of
lignocellulose,
i.e.,
biorefinery,
can
provide
human
beings
with
biofuels,
bio-based
chemicals,
materials,
is
an
important
technology
to
solve
the
fossil
energy
crisis
promote
global
sustainable
development.
Biorefinery
involves
steps
such
as
pretreatment,
saccharification,
fermentation,
researchers
have
developed
a
variety
biorefinery
strategies
optimize
process
reduce
costs
in
recent
years.
Lignocellulosic
hydrolysates
are
platforms
that
connect
saccharification
downstream
fermentation.
hydrolysate
composition
closely
related
biomass
raw
pretreatment
process,
choice
biorefining
strategies,
provides
not
only
nutrients
but
also
possible
inhibitors
for
In
this
review,
we
summarized
effects
each
stage
lignocellulosic
on
inhibitors,
analyzed
huge
differences
nutrient
retention
inhibitor
generation
among
various
emphasized
all
lignocellulose
need
be
considered
comprehensively
achieve
maximum
optimal
control
at
low
cost,
reference
development
chemicals.
Nature Communications,
Journal Year:
2023,
Volume and Issue:
14(1)
Published: Dec. 20, 2023
Abstract
Succinic
acid
(SA)
is
an
important
C4-dicarboxylic
acid.
Microbial
production
of
SA
at
low
pH
results
in
purification
costs
and
hence
good
overall
process
economics.
However,
redox
imbalances
limited
biosynthesis
from
glucose
via
the
reductive
tricarboxylic
(TCA)
cycle
yeast.
Here,
we
engineer
strictly
aerobic
yeast
Yarrowia
lipolytica
for
efficient
without
control.
Introduction
TCA
into
cytosol
a
succinate
dehydrogenase-disrupted
strain
causes
arrested
cell
growth.
Although
adaptive
laboratory
evolution
restores
growth,
NADH
supply
restricts
production.
Reconfiguration
pathway
mitochondria
through
coupling
oxidative
regeneration
improved
In
pilot-scale
fermentation,
engineered
produces
111.9
g/L
with
yield
0.79
g/g
within
62
h.
This
study
paves
way
industrial
biobased
SA.
Fermentation,
Journal Year:
2023,
Volume and Issue:
9(11), P. 990 - 990
Published: Nov. 20, 2023
Lignocellulose
consists
of
cellulose,
hemicellulose,
and
lignin
is
a
sustainable
feedstock
for
biorefinery
to
generate
marketable
biomaterials
like
biofuels
platform
chemicals.
Enormous
tons
lignocellulose
are
obtained
from
agricultural
waste,
but
few
utilized
due
lack
awareness
the
biotechnological
importance
lignocellulose.
Underutilizing
could
also
be
linked
incomplete
use
cellulose
hemicellulose
in
biotransformation
into
new
products.
Utilizing
producing
value-added
products
alleviates
waste
disposal
management
challenges.
It
reduces
emission
toxic
substances
environment,
which
promotes
development
goal
contributes
circular
economy
economic
growth.
This
review
broadly
focused
on
production
high-value
The
aspects
that
were
discussed
included:
(i)
sources
lignocellulosic
biomass;
(ii)
conversion
biomass
products;
(iii)
various
bio-based
Additionally,
several
challenges
upcycling
alleviation
strategies
discussed.
suggested
prospects
using
replace
polystyrene
packaging
with
lignin-based
products,
crafts
interior
decorations
lignin,
nanolignin
environmental
biosensors
biomimetic
sensors,
processing
addition
nutritional
supplements
meet
dietary
requirements
animal
feeding.
Catalysis Communications,
Journal Year:
2024,
Volume and Issue:
187, P. 106883 - 106883
Published: Feb. 1, 2024
The
increasing
focus
on
sustainability
has
prompted
researchers
to
investigate
innovative
catalytic
methods
for
converting
acids
produced
from
biomass
into
value
added
ester
compounds.
present
study
focuses
the
efficient
conversion
of
diverse
biomass-derived
esters
through
utilization
zeolite-based
catalysts,
capitalizing
their
unique
structural
and
acidic
properties.
encompasses
a
wide
range
applications,
making
them
highly
versatile
as
both
platform
chemicals
biofuels.
Recent
development
enhancement
systems
based
zeolites
are
specifically
reviewed
synthesis
compounds
with
significant
commercial
derived
acids.
Green Chemistry,
Journal Year:
2024,
Volume and Issue:
26(14), P. 8068 - 8099
Published: Jan. 1, 2024
This
review
summarizes
recent
advances
in
the
synthesis,
characterization
and
application
of
heteroatom
(Ti,
Zr,
Sn,
Hf)
Lewis
acid
zeolites
conversion
biomass-derived
oxygenates.
Industrial Crops and Products,
Journal Year:
2024,
Volume and Issue:
212, P. 118309 - 118309
Published: March 6, 2024
This
study
explores
the
hydrolysis
of
microcrystalline
cellulose
under
soft
conditions
using
a
combination
both
homogeneous
(HCl)
and
heterogeneous
catalysts
(β-zeolite).
The
impact
temperature
HCl
concentration
is
studied,
revealing
that
most
favorable
results
(highest
HMF
yield)
are
achieved
at
140ºC
with
0.02
%w/w
(19%
selectivity,
23.5%
conversion).
Nevertheless,
inherent
recalcitrance
limits
conversion
concentration.
Three
chemical
pretreatments
(HCl,
H2O2,
HNO3)
considered,
assessing
effect
Except
when
69%
HNO3,
bulk
structure
remains
largely
unaffected
(low
on
conversions).
However,
surface
undergoes
alteration
due
to
acidic
predominantly
oxidizing
pretreatment,
leading
detection
C5
compounds.
These
modifications
have
positive
influence
reaction,
significantly
enhancing
selectivity
towards
up
50%
(34%
