title: Feruloyl esterase utilization for simultaneous processing of nonwood plants into phenolic compounds and pulp fibers.
abstract: Wheat and oilseed flax straws were studied as raw material for papermaking. Two different aspects were investigated to valorize these agricultural byproducts: the capacity to recover some phenolic compounds and the use of the resulting cellulose fibers in papermaking. Straw phenolic compound composition was analyzed to determine the different accessible molecules and their available quantity. Ferulic acid, coumaric acid, vanillic acid, and vanillin were found in both wheat and oilseed flax straws. To enhance the release of these phenolic compounds, enzymatic treatments with feruloyl esterase and xylanase, two enzymes known for their role in lignin destructuration, were tested. These treatments increased the amount of phenolic compounds released, destructured hemicellulose and lignin, and improved the soda cooking conditions of pulps with the reduction of chemical charge need in the papermaking process. Phenolic compound production from this process could enhance the cost-effectiveness of papermaking from annual plants.
authors.affiliation: Centre Technique du Papier, domaine universitaire, B.P. 251, 38044 Grenoble Cedex 9, France.
authors.forename: Sandra
authors.initials: S
authors.lastname: Tapin
authors.forename: Jean-Claude
authors.initials: JC
authors.lastname: Sigoillot
authors.forename: Marcel
authors.initials: M
authors.lastname: Asther
authors.forename: Michel
authors.initials: M
authors.lastname: Petit-Conil
mesh_terms: D002265:Carboxylic Ester Hydrolases / Q000378:metabolism*; D002482:Cellulose; D043364:Endo-1,4-beta Xylanases / Q000378:metabolism*; D019597:Flax / Q000737:chemistry* / Q000378:metabolism; D008031:Lignin / Q000032:analysis; D010209:Paper; D010636:Phenols / Q000032:analysis* / Q000378:metabolism; D013227:Steam; D014908:Triticum / Q000737:chemistry* / Q000378:metabolism
chemical_list: D010636:Phenols; D013227:Steam; D002482:Cellulose; D008031:Lignin; D002265:Carboxylic Ester Hydrolases; C070196:feruloyl esterase; D043364:Endo-1,4-beta Xylanases