Environmental Research,
Journal Year:
2024,
Volume and Issue:
263, P. 120134 - 120134
Published: Oct. 9, 2024
Biowaste
valorisation
into
high-value
compounds
is
one
of
the
main
challenges
green
chemistry,
as
chemicals
produced
from
biological
sources
are
identified
key
substances
in
development
a
low-carbon
and
circular
bioeconomy
connection
with
transition
fossil
to
renewable
feedstocks.
The
review
summarizes
production
products
such
glucose-based
chemicals,
phenolic
volatile-fatty
acids
prepared
biomass
waste.
pretreatment
methods
milling,
filtration
extraction
followed
by
current
non-catalytic
microwave
or
ultrasound
catalytic
for
value-added
presence
various
catalyst
types
conventional,
nano
enzyme
form
listed
focus
on
applied
food,
cosmetic
pharmaceutical
industries.
economic
feasibility,
technical
aspects
concept
biorefinery
briefly
mentioned,
emphasizing
necessity
life
cycle
assessment
each
bioproduct
technological
process.
Finally,
it
provides
future
perspective
makes
recommendations
potential
research
strategies,
recognizing
importance
utilizing
waste
useful
an
attractive
environmentally
friendly
approach
whose
should
be
encouraged.
utilization
biowaste
shows
high
potential,
however,
there
still
many
resolved
throughout
entire
chain,
reflecting
technological,
economic,
ecological,
sociological
long-term
issues.
Fermentation,
Journal Year:
2025,
Volume and Issue:
11(4), P. 160 - 160
Published: March 21, 2025
The
conversion
of
food
waste
into
caproate
via
anaerobic
chain
elongation
has
gained
increasing
attention.
However,
limitations
such
as
reliance
on
external
electron
donors,
low
carbon
efficiency
under
high
loads,
and
unclear
microbial
mechanisms
hinder
its
application.
Fe3O4
reportedly
can
act
an
shuttle
mitigate
product
inhibition
during
digestion
sludge.
Thus,
addition
could
overcome
the
challenges
from
loads
certain
conditions.
In
this
study,
experiments
were
conducted
batch
semi-continuous
This
study
investigated
effects
organic
hydrolysis,
acidification,
fermentation.
Furthermore,
influences
production
profile
varying
substrate-to-inoculation
ratios
dosages
examined.
key
results
harvested
trial
indicate
that
severely
inhibited
production.
And
in
tests,
at
F/M
ratio
1:2,
dosage
evidently
enhanced
by
promoting
lactate
to
butyrate
elongation.
At
6:1,
maximum
yield
reached
0.45
g
COD/g
COD
2.0
g/L.
High
load
reduced
abundance
butyrate-producing
bacteria
(Latilactobacillus
Stenotrophomonas).
Nevertheless,
increased
caproate-producing
(Caproiciproducens).
conclusion,
optimal
stimulating
transport
enriching
relevant
microorganisms.
Bioresource Technology,
Journal Year:
2023,
Volume and Issue:
394, P. 130192 - 130192
Published: Dec. 9, 2023
Chain
elongation
technology
allows
medium-chain
fatty
acids
(MCFAs)
production
as
an
alternative
to
fossil
resources.
Clostridium
kluyveri
generates
n-caproate
primarily
from
ethanol
and
acetate,
presumably
requiring
CO
Fermentation,
Journal Year:
2024,
Volume and Issue:
10(4), P. 179 - 179
Published: March 25, 2024
Amino
acids,
particularly
the
ones
that
cannot
be
synthesised
during
fermentation,
are
reportedly
to
key
nutrients
for
anaerobic
fermentation
processes,
and
some
of
acids
also
intermediate
products
protein-rich
waste.
To
date,
particularly,
there
is
a
lack
research
on
effects
amino
such
as
cysteine,
glycine,
aspartic
acid,
valine,
lactic
production
from
food
waste
mechanisms
involved
in
process.
Thus,
this
study
investigated
four
different
acid
acidic
Firstly,
batch
experiments
synthetic
at
pHs
(4.0,
5.0,
6.0)
were
executed.
The
results
harvested
showed
higher
LA
concentrations
yields
could
obtained
pH
5.0
6.0,
compared
with
those
4.0.
yield
was
slightly
lower
than
6.0.
Furthermore,
caustic
consumption
much
lower.
Therefore,
we
conducted
additions
(cysteine,
valine)
under
5.0.
or
even
opposite
influences
production.
Glycine
presented
no
noticeable
production,
but
cysteine
evidently
enhanced
by
13%.
Cysteine
addition
increased
α-glucosidase
activity
hydrolysis
rate
simultaneously
abundance
Lactobacillus
acidification
stage
well
lactate
dehydrogenase,
which
all
favoured
However,
valine
reduced
18%,
implied
seemingly
inhibited
conversion
carbohydrate.
In
addition,
low
observed
tests
appeared
detrimental
Overall,
provides
novel
insight
into
regulation
adding
conditions.
