Table 2.

Comparison of cellulose extraction from different tree species.

Tree Species	Pretreatment	Treatment	Experimental Method	Ref.
Eucalyptus	Saw into powder	Alkali treatment	1% NaOH and NaHClO3 bleaching	[68,69]
Doum	Grind	Alkali treatment	4% NaOH and 1.7% NaClO2 bleaching	[70]
Banyan root	Mechanical decorticate	Alkali treatment	5% (w/v) NaOH and dilute	[71]
Mesquite	Wash crash grind and mill	Acid hydrolysis and alkali treatment	20% NaOH 5% Na2S 0.04% anthraquinone and 5% NaClO2	[72]
Agave gigantea	Wash, soak in boiling water, remove outer layer, dried fiber and ultrafine grinding	Alkali treatment	5% (w/v) NaOH for 2 h at 80 °C, washed, dried 60 °C for 14 h,	[73]