Sustainability,
Год журнала:
2024,
Номер
17(1), С. 173 - 173
Опубликована: Дек. 29, 2024
The
mesquite
tree
(Prosopis
juliflora)
is
cultivated
across
500,000
hectares
in
the
semi-arid
region
of
Brazil,
primarily
aimed
at
recovering
degraded
areas
northeastern
part
country,
which
represents
15.7%
national
territory.
However,
its
economic
potential
remains
underutilized.
Mesquite
pods
are
particularly
rich
carbohydrates,
making
them
a
promising
raw
material
for
bioethanol
production.
This
study
investigates
production
first-generation
from
as
feedstock.
Mature
were
sourced
local
producers
Sumé
Town,
located
Cariri
Paraibano
microregion
Brazil.
Sugar
extraction
involved
hydration
followed
by
pressing,
with
extracted
juice
adjusted
to
pH
4.3
and
soluble
solids
(°Brix)
concentrations
corrected
20,
18,
16.
was
then
subjected
fermentation
using
different
yeast
strains
(fresh
yeast,
granular
FLNF
CA-11)
concentration
25
g
L−1.
Alcoholic
carried
out
batch
system,
measurements
cell
(biomass),
(°Brix),
ethanol
(°GL),
taken
2
h
intervals
over
20
period.
best
physicochemical
characterization
obtained
LNF
CA-11
°Brix,
producing
biofuel
that
met
Brazilian
legal
standards
set
National
Petroleum
Agency
(ANP).
had
colorless
appearance
free
impurities,
titratable
acidity
28.2
mg
acetic
acid,
electrical
conductivity
282.33
µS
m−1,
specific
mass
809
kg
m−3,
an
alcohol
content
95.5
°GL,
6.28,
no
evaporation
residue
100
mL.
Additionally,
highest
yield
achieved
broth
fermented
18
°Brix
yeast.
These
results
highlight
renewable
energy
alternative,
especially
relevant
context
global
climate
crisis;
growing
need
reduce
dependence
on
fossil
fuels;
environmental
problems;
they
promote
added-value
use
this
product.
Foods,
Год журнала:
2024,
Номер
13(24), С. 4032 - 4032
Опубликована: Дек. 13, 2024
Food
waste
(FW)
is
a
common
source
of
contamination,
contaminating
both
soils
and
water
bodies
by
releasing
greenhouse
gases.
FW
holds
great
potential
for
biofuel
bioproduct
production,
which
can
mitigate
its
environmental
impact
become
valuable
addition
to
the
circular
bioeconomy.
Therefore,
this
work
aimed
investigate
use
food
as
substrate
produce
fermentable
sugars
bioethanol.
was
pretreated
lipid
removal.
Raw
treated
hydrolyzed
amylases.
Also,
using
sulfuric
acid
under
different
residence
times
(20,
40,
60
min),
concentrations
(0.5,
1.0,
1.5%
v·v−1),
solid
loads
(5,
10,
15%
m·v−1),
temperatures
(111,
120,
127
°C).
The
best
reducing
sugar
concentration
obtained
at
load
applied
1
h
°C.
hydrolysis
process
more
efficient
(76.26%
efficiency)
than
enzymatic
one
(72.7%).
Bioethanol
production
carried
out
static
submerged
fermentation,
with
Saccharomyces
cerevisiae
10%
(humidity
m·v−1)
being
used
producer
hydrolysates
carbon
sources.
Lipid
removal
from
did
not
influence
or
hydrolytic
processes.
For
highest
bioethanol
yield
hydrolysate
raw
(0.49
kg·kg
glicose−1).
Thus,
processes
were
presenting
alternatives
sustainable
destinations
low-cost
production.
Sustainability,
Год журнала:
2024,
Номер
17(1), С. 173 - 173
Опубликована: Дек. 29, 2024
The
mesquite
tree
(Prosopis
juliflora)
is
cultivated
across
500,000
hectares
in
the
semi-arid
region
of
Brazil,
primarily
aimed
at
recovering
degraded
areas
northeastern
part
country,
which
represents
15.7%
national
territory.
However,
its
economic
potential
remains
underutilized.
Mesquite
pods
are
particularly
rich
carbohydrates,
making
them
a
promising
raw
material
for
bioethanol
production.
This
study
investigates
production
first-generation
from
as
feedstock.
Mature
were
sourced
local
producers
Sumé
Town,
located
Cariri
Paraibano
microregion
Brazil.
Sugar
extraction
involved
hydration
followed
by
pressing,
with
extracted
juice
adjusted
to
pH
4.3
and
soluble
solids
(°Brix)
concentrations
corrected
20,
18,
16.
was
then
subjected
fermentation
using
different
yeast
strains
(fresh
yeast,
granular
FLNF
CA-11)
concentration
25
g
L−1.
Alcoholic
carried
out
batch
system,
measurements
cell
(biomass),
(°Brix),
ethanol
(°GL),
taken
2
h
intervals
over
20
period.
best
physicochemical
characterization
obtained
LNF
CA-11
°Brix,
producing
biofuel
that
met
Brazilian
legal
standards
set
National
Petroleum
Agency
(ANP).
had
colorless
appearance
free
impurities,
titratable
acidity
28.2
mg
acetic
acid,
electrical
conductivity
282.33
µS
m−1,
specific
mass
809
kg
m−3,
an
alcohol
content
95.5
°GL,
6.28,
no
evaporation
residue
100
mL.
Additionally,
highest
yield
achieved
broth
fermented
18
°Brix
yeast.
These
results
highlight
renewable
energy
alternative,
especially
relevant
context
global
climate
crisis;
growing
need
reduce
dependence
on
fossil
fuels;
environmental
problems;
they
promote
added-value
use
this
product.
