The extraction of lignin can be done using various methods such
as, organosolv, acid-isolation, alkaline-isolation, Kraft process and
ionic liquids. Nonetheless, these separation methods are generally
expensive and/or require extreme temperature and pressure,
which are not easy to apply at industrial scale production (except
Kraft carried out in pulp and paper from wood). Therefore, an efficient
and inexpensive method is necessary for extraction of lignin
from lignocellulosic biomass.