Abstract：
:Lignocellulosic material from Leucaena leucocephala was subjected to a two-stage fractionation process to obtain a valorized effluent containing hemicellulose derivatives and a solid phase for producing cellulose pulp by conventional soda-anthraquinone delignification. This solid phase allows the production of cellulose pulp, under less rigorous conditions from NaOH-AQ process (177 °C, 21%, 120 min) than without pretreatment delignification (185 °C, 25%, 150 min) and better or similar properties in the paper sheets obtained (yield 27.6 and 34.0%, brightness 39.3 and 31.6% ISO, tensile index 7.8 and 10.5 N m/g, burst index 0.43 and 0.29 MPa m(2)/kg with and without previous autohydrolysis) have be found. Also, the first autohydrolysis stage allows up to 46.6% of the initial hemicellulose in the raw material to be extracted as xylooligomers, xylose and furfural into the liquid phase.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Feria MJ,García JC,Díaz MJ,Fernández M,López Fdoi
10.1016/j.biortech.2012.09.051subject
Has Abstractpub_date
2012-12-01 00:00:00pages
64-70eissn
0960-8524issn
1873-2976pii
S0960-8524(12)01396-Xjournal_volume
126pub_type
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