Algal Research,
Год журнала:
2024,
Номер
82, С. 103638 - 103638
Опубликована: Июль 29, 2024
Microalgae
and
cyanobacteria
are
photosynthetic
unicellular
organisms
that
contain
considerable
amounts
of
proteins,
lipids,
carbohydrates,
polyunsaturated
fatty
acids,
among
others,
with
applications
in
the
cosmetic,
pharmaceutical,
food
industries.
These
microorganisms
can
accumulate
protein
up
to
70
%
total
biomass
depending
on
microalgal
strain,
hence
they
have
been
regarded
as
an
alternative
source
for
future.
Microalgal
proteins
important
such
emulsifying,
foaming,
gelation
properties,
which
determination
quality
texture
foods.
Some
peptides
possess
bioactivity
many
health-benefit
effects.
Therefore,
maximize
production
from
microalgae
cyanobacteria,
extraction
procedures
studied
increase
economic
return.
They
tested
towards
higher
yields
at
low
energy
cost,
preservation
native
lower
cell
debris.
This
later
is
fundamental
facilitate
subsequent
purification
processes
so
overall
cost
be
reduced.
The
aim
this
work
review
some
disruption
considering
step
crucial
process
due
high
rigidness
covering,
hamper
release
proteins.
It
also
aims
reviewing
techniques
after
cellular
disruption,
conventional
more
recent
approaches,
finally
addresses
antioxidant,
antidiabetic,
antihypertensive,
antibacterial
other
bioactive
properties
hydrolysates
peptides.
Plants,
Год журнала:
2025,
Номер
14(2), С. 206 - 206
Опубликована: Янв. 13, 2025
Medicinal
plants
are
sources
of
crude
traditional
herbal
medicines
that
utilized
to
reduce
the
risk
of,
treat,
or
manage
diseases
in
most
indigenous
communities.
This
is
due
their
potent
antioxidant
and
anti-inflammatory
effects.
It
estimated
about
80%
population
developing
countries
rely
on
for
healthcare.
signifies
need
medicines,
which
polyherbal
formulations
prepared
by
health
practitioners.
review
examines
preparatory
steps
extract
bioactive
phytoconstituents
post-extraction
processes
increase
potency
extracted
phytoconstituents.
Achieving
this
will
allow
reduced
use
plant
materials
promote
sustainable
limited
resource
medicinal
plants,
especially
our
South
African
context.
Electronic
ethnobotanical
books
online
databases
were
used
find
studies
focus
phytoconstituent
extraction
processing
enhance
Modification
synthesize
daughter
compounds
facilitates
an
enhancement
bioavailability.
Based
data
collected
through
review,
importance
understanding
properties
targeted
essential
selecting
required
method.
determines
quality
yield
Phycology,
Год журнала:
2024,
Номер
4(1), С. 87 - 103
Опубликована: Янв. 30, 2024
The
high
protein
content
of
several
microalgal
species
makes
them
attractive
and
unconventional
candidates
for
use
in
the
food
pharmaceutical
industries.
Due
to
robust
cell
walls
microalgae,
rupture
is
necessary
improve
extraction
intracellular
proteins.
Thus,
choosing
a
suitable
cell-breaking
treatment
before
vital
downstream
processing
step.
Additionally,
it
an
effective
technique
monitoring
measuring
impact
treatments
on
walls.
In
our
study,
Tetradesmus
obliquus
cells
were
disrupted
using
three
different
mechanical
methods:
high-pressure
homogenization
(HPH),
ultrasound
(US),
ball
milling
(BM).
ruptured
biomass
counted,
soluble
proteins
extracted
quantified.
cell-counting
did
not
detect
any
differences
between
intact
damaged
after
BM
because
dye
(erythrosine
B)
permeate
accurately.
US
promoted
highest
yield
total
(19.95%),
while
yields
HPH
15.68%
14.11%,
respectively.
Since
breakage
method
affects
from
biomass,
release
can
be
used
as
central
indicator
degree
disruption.
Desalination and Water Treatment,
Год журнала:
2024,
Номер
317, С. 100209 - 100209
Опубликована: Янв. 1, 2024
Downstream
processing,
encompassing
molecule
extraction
and
extract
purification,
is
a
critical
step
in
microalgal
biorefinery.
This
study
focuses
on
the
concentration
desalting
of
Tetraselmis
suecica
crude
extract,
which
contains
proteins,
neutral
carbohydrates,
uronic
acids,
pigments.
The
biomass
was
initially
disrupted
with
high-pressure
homogenizer
operating
moderate
conditions
(P
=
300
bars
2
passes).
liquid
obtained
then
desalted
concentrated
by
stirred-cell
ultrafiltration.
Two
membranes,
both
made
polyethersulfone
(PES)
but
different
molecular
weight
cut-offs
(10
kDa
30
kDa),
were
tested
for
this
purpose.
filtration
process
lasted
3.15
±
0.34
h,
temperature
maintained
at
28
3ºC.
There
was,
therefore,
compelling
need
to
reduce
ash
content
facilitate
valorization
extracted
proteins.
Both
membranes
displayed
time-dependent
decreases
permeate
flux,
membrane
permeability,
shear
rate.
protein
increased
steadily
over
time,
whereas
concentrations
acids
remained
constant
during
These
results
demonstrated
efficacy
extract.
After
disruption,
high,
35.5
0.8%
dry
(DW),
decreasing
purity
26.1
0.3%
DW.
10
superior
retention,
resulting
an
increase
50
g.L-1
final
retentate.
eliminated
79.5
0.5%
salts
from
potentially
achieving
complete
retention
pigments,
acids;
approximately
21.4
3.6%
total
carbohydrates
removed
membrane.
Processes,
Год журнала:
2024,
Номер
12(6), С. 1139 - 1139
Опубликована: Май 31, 2024
The
optimization
of
cell
disruption
is
a
critical
step
in
microalgal
biorefineries.
We
used
the
same
batch
Tetraselmis
suecica
culture
to
compare
two
mechanical
techniques,
focusing
on
extraction
yield
water-soluble
molecules.
conditions
for
high-pressure
homogenization
(HPH)
studied
were
passes
at
moderate
pressure
300
bars.
For
ultrasound
(US)
treatment,
we
an
amplitude
20%
(equivalent
100
W)
25
min.
These
chosen
basis
preliminary
screen
conditions.
HPH
extracted
proteins
and
pigments
more
efficiently
than
US,
whereas
US
was
superior
uronic
acid
extraction.
Interestingly,
methods
had
similar
yields
carbohydrates
under
also
analyzed
kinetics
molecule
release
by
considering
centrifugation
time
lag
applying
first-order
kinetic
model
US.
outperformed
terms
immediate
