Abstract:
:Wheat straw, an important papermaking raw material in China, was treated with a white-rot fungus of Phanerochaete chrysosporium ME446, and the lipophilic and hydrophilic extractives from the control and bio-treated samples were analyzed by GC and GC-MS. Bio-treatment of wheat straw could alter the chemical composition of both the lipophylic and hydrophilic extractives. Sugars and phenolic substances such as coniferyl alcohol, 4-hydroxycinnamic acid, 1-guaiacylglycerol and ferulic acid were substantially degraded or consumed by the fungus. More lipophilic substances such as wax, glycerides and steryl esters were degraded into the corresponding components, resulting in much higher concentrations of fatty acids and sterols in the bio-treated samples. Obviously, the bio-treatment of wheat straw was of benefit to pitch control in pulping and papermaking processes, in the view of degradation of the more lipophilic substances. In addition, the bio-treatment could increase the lignin concentration in hot-water extractives of wheat straw.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Qin MH,Xu QH,Shao ZY,Gao Y,Fu YJ,Lu XM,Gao PJ,Holmbom Bdoi
10.1016/j.biortech.2009.01.055subject
Has Abstractpub_date
2009-06-01 00:00:00pages
3082-7issue
12eissn
0960-8524issn
1873-2976pii
S0960-8524(09)00103-5journal_volume
100pub_type
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