In
this
study,
tomato
waste
juice
(TWJ)
was
used
as
substrate
to
produce
volatile
fatty
acids
(VFAs)
through
anaerobic
fermentation.
The
influences
of
initial
pH,
inoculation
dose,
temperature
and
phases
(including
TWJ,
residue
(TWR)
their
mixture
(TWM))
on
VFAs
production
were
investigated.
Additionally,
the
microbial
community
structure
succession
also
explored.
results
indicated
that
yield
reached
361.86
mgCOD/gVS
at
pH
7,
dose
3
gTS/L
(g
total
solids
[TS]
sludge
/
L
TWJ)
45℃,
with
corresponding
maximum
VFAs/SCOD
rate
62.69%.
by
TWJ
significantly
higher
than
TWR
TWM,
indicating
juice-residue
separation
showed
a
remarkable
performance
obtained
composition
mainly
acetic
acid,
which
conducive
further
application.
With
prolongation
fermentation
time,
Firmicutes
gradually
dominated
eventually
96.81%,
usually
participated
in
hydrolyzing
acid-producing
stage
process.
study
confirms
feasibility
high
efficiency
vegetable
juice,
providing
new
way
for
treatment
recycle.
Heliyon,
Journal Year:
2024,
Volume and Issue:
10(3), P. e25787 - e25787
Published: Feb. 1, 2024
Sugarcane
leaf
waste,
a
byproduct
of
the
growing
global
sugar
industry,
challenges
agricultural
waste
management.
This
study
explores
its
potential
for
methane
production
via
anaerobic
digestion.
A
microbial
pre-hydrolysis,
using
lignocellulose-degrading
bacteria,
enhanced
soluble
chemical
oxygen
demand
at
an
optimal
initial
substrate
concentration
40
g-volatile
solid/L.
Comparative
analysis
with
untreated
and
bioaugmented
leaves
revealed
pre-hydrolyzed
achieved
highest
rate
(MPR)
14.0
±
0.5
mL-CH4/L·d,
surpassing
others
by
1.47
1.67
times.
Two
continuous
stirred
tank
reactors
were
employed
to
assess
hydraulic
retention
time
(HRT).
Results
showed
stable
HRT
25
days,
yielding
high
MPRs:
88.70
0.63
mL-CH4/L·d
from
sugarcane
82.57
1.22
consortium-augmented
leaves.
25-day
fosters
diversity
Bacteroidota,
Firmicutes,
Chloroflexi,
Verrucomicrobiota
dominance,
indicating
favorable
conditions.
Conversely,
20-day
results
in
lower
due
unfavorable
factors
like
low
pH
during
organic
overloading,
leading
increased
concentrations
volatile
fatty
acids
lactic
acid,
Firmicutes
as
predominant
phylum.
highlights
waste's
valuable
resource
sustainable
production.
Waste Management,
Journal Year:
2024,
Volume and Issue:
184, P. 1 - 9
Published: May 22, 2024
Unavoidable
food
wastes
could
be
an
important
feedstock
for
industrial
biotechnology,
while
their
valorization
provide
added
value
the
processor.
However,
despite
abundance
and
low
costs,
heterogeneous/mixed
nature
of
these
produced
by
processors
consumers
leads
to
a
high
degree
variability
in
carbon
nitrogen
content,
as
well
specific
substrates,
waste
hydrolysate.
This
has
limited
use
bioproduct
synthesis.
These
are
often
instead
used
anaerobic
digestion
mixed
microbial
culture,
creating
significant
knowledge
gap
higher
biochemical
production
via
pure
single
culture.
To
directly
investigate
this
gap,
various
streams
processor
were
enzymatically
hydrolyzed
characterized,
with
regard
carbon,
was
quantified.
The
impact
hydrolysate
on
viability
performance
polyhydroxyalkanoates
biopolymers
using
bacteria
(Cupriavidus
necator)
archaea
(Haloferax
mediterranei)
sophorolipids
biosurfactants
yeast
(Starmerella
bombicola)
then
elucidated
at
laboratory-scale.
After
which,
strategies
implemented
during
experimental
proof-of-concept
study,
beyond,
improved
industrial-scale
which
addresses
discussed
in-depth,
including
media
standardization
non-selective
organisms
growth-associated
product
insights
provided
would
beneficial
future
endeavors
aiming
utilize
feedstocks
biotechnology.
Molecules,
Journal Year:
2025,
Volume and Issue:
30(6), P. 1326 - 1326
Published: March 15, 2025
Recent
advancements
in
analytical
strategies
have
enabled
the
efficient
extraction
and
characterization
of
bioactive
compounds
from
agri-food
bio-residues,
emphasizing
green
chemistry
circular
economy
principles.
This
review
highlights
valorization
several
bio-residues
for
high-value-added
compounds,
particularly
polyphenols,
tocopherols,
carotenoids,
fatty
acids,
as
a
biorefinery
approach.
To
this
end,
adoption
environmentally
friendly
technologies
is
essential
to
improve
performance,
reduce
energy
consumption,
minimize
costs.
study
therefore
examines
emerging
methodologies
such
supercritical
fluid
extraction,
pressurized
liquid
pulsed
electric
fields,
matrix
solid-phase
dispersion,
highlighting
their
advantages
limitations.
Additionally,
chemical
these
explored
through
spectrophotometric
high-resolution
chromatographic
techniques,
crucial
accurate
identification
quantification.
complemented
by
an
analysis
bioactivity
assays
evaluating
antioxidant,
antimicrobial,
anticancer,
neuroprotective,
anti-inflammatory
properties,
with
focus
on
applications
food,
pharmaceutical,
cosmetic
industries.
However,
control
toxic
alkaloids,
undoubtedly
needed.
Ultimately,
approach
not
only
promotes
sustainability
but
also
contributes
development
eco-friendly
solutions
various
