Abstract：
:The specific elimination of lignin derivatives from wood hydrolysate without sugar loss has great practical significance to biorefinery and bioenergy. In the present study, a process consisting of calcium hydroxide and anion exchange resin treatments was developed for the purpose of selective removal of lignin from wood prehydrolysis liquor (PHL). Particular emphasis was made on the ionization of phenolic lignin, and the subsequent binding to metallic salts. It was observed that phenolic hydroxyl groups (PhOH) in lignin played an important role in lignin removal. The results showed that up to 95.2% lignin was removed from PHL with 78.8% sugar recovery. This suggested that the proposed process is highly specific to lignin, and therefore can be envisaged as a great contribution to wood-sugar production or bioenergy conversion.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Wang Z,Jiang J,Wang X,Fu Y,Li Z,Zhang F,Qin Mdoi
10.1016/j.biortech.2014.10.025subject
Has Abstractpub_date
2014-12-01 00:00:00pages
198-203eissn
0960-8524issn
1873-2976pii
S0960-8524(14)01437-0journal_volume
174pub_type
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