3.3. Nanofiltration process
The optimized extract obtained through experimental design
was
subjected
to
nanofiltration.
A
decrease
of
the
permeate
flux
(J)
was
noted
along
the
process
time
(Fig.
3).
This
could
be attributed to the concentration polarization, i.e., concen-
tration
of
compounds
on
the
membrane
surface,
and
fouling