Synergies Between Heme Peroxidases and Cellulases in the Bioconversion of Lignocellulosic Feedstocks to Ethanol Christine Kelly, Oregon State University OVERVIEW Forest thinning, particularly forestry wastes composed of softwoods, in the Western region are a major potential source of biomass for biofuel production. However, softwoods, such as Douglas fir, tend to be more resistant to conversion...

Three kinds of softwoods (Douglas fir, radiata pine, and Sugi) were used to test the possibility their classification via near infrared (NIR) spectroscopy. In a previous study, authors presented that content Korean softwood extractives (larix, red cedar, cypress) influenced wood classification. For expanding extent species be considered in analysis, three foreign newly introduced. Prior compari...

BACKGROUND Conversion of softwoods into sustainable fuels and chemicals is important for parts of the world where softwoods are the dominant forest species. While they have high theoretical sugar yields, softwoods are amongst the most recalcitrant feedstocks for enzymatic processes, typically requiring both more severe pretreatment conditions and higher enzyme doses than needed for other lignoc...

An estimated 4.53 billion board feet of solid hardwood and 1.79 billion board feet of solid softwood were used in the production of pallets and containers in 1995. When compared to estimates for 1992, the use of both softwoods and

Three white-rot fungi, Polyporus versicolor, Ganoderma applanatum, and Peniopbora “G,” produce an adaptive cellulase complex that can degrade both soluble cellulose (Cx) and microcrystalline cellulose (C1), a highly ordered form of cellulose. Production of Cx and C1 by the white-rot fungi was repressed by simple sugars. Cellualase preparations from three brown-rot fungi, Poria monticola, Lentin...

Thermal modification beneficially alters several technological parameters of wood. The changes in the physical parameters are due to the significant alterations of the structure and the chemical composition of wood, which take place during the modification process. These changes are complex and some aspects are still far from being completely understood. Various industrially important hardwoods...

Branfoot (1) has summarised the early work on pectic substances. Bonner (2), Norman (3), and Hirst and Jones (4) have reviewed later work on the structure of these substances. Pectic materials that approximate the composition and have some of the properties of pectic acid are widely distributed but in small amounts in mature hardwoods. In 1925 O’Dwyer (5) isolated such a material from beechwood...