“…Other research has focused on the possibility of extracting high-grade cellulose (97% ␣-cellulose) from P. oceanica using H 2 O 2 and organic peracids, (Coletti et al, 2013) or on the production of carboxymethyl cellulose from bleached cellulose pulp (Aguir and M'Henni, 2006). Few examples are reported in literature regarding the extraction and characterization of cellulose crystallites from algae or marine plant (Hanley et al, 1997;Hua et al, 2014;Revol, 1982;Saritha et al, 2013) while Bettaieb et al (2014) reported about the preparation and characterization of cellulose nanostructures (both nanocrystals and nanofibrils) from P. oceanica.…”