Abstract: Provided are methods and compositions for high yields while using reduced enzyme loads in saccharification and fermentation processes. These methods increase the efficiency of enzymes and result in improved yields and composition of saccharification and fermentation end products.

Abstract: Provided are methods and compositions using activated carbon for optimizing purification and clarification of sugar streams produced from cellulosic or lignocellulosic biomass. Also provided are methods and compositions for decreasing one or more undesirable products during pretreatment.

Abstract: Provided are methods and compositions using activated carbon for optimizing purification and clarification of sugar streams produced from cellulosic or lignocellulosic biomass. Also provided are methods and compositions for decreasing one or more undesirable products during pretreatment.

Abstract: Methods are disclosed that separate xylose from glucose in pretreated and enzyme-hydrolyzed cellulosic and/or lignocellulosic biomass. Filtration, especially diafiltration is used to reduce fermentation-impeding substances and xylose from glucose and growth-promoting factors.

Abstract: Provided are methods and compositions for high yields while using reduced enzyme loads in saccharification and fermentation processes. These methods increase the efficiency of enzymes and result in improved yields and composition of saccharification and fermentation end products.

Abstract: Provided are methods, systems, and compositions for increasing the rate and/or yield of fermentation processes using blended feedstocks. Also provided are methods, systems, and compositions for decreasing the yield of one or more undesirable products during fermentation.

Abstract: Provided are methods, systems, and compositions for increasing the rate and/or yield of fermentation processes using blended feedstocks. Also provided are methods, systems, and compositions for decreasing the yield of one or more undesirable products during fermentation.

Abstract: Provided are methods and compositions directed to increasing the rate and/or yield of sugar extraction processes using feedstocks. Also provided are methods and compositions for decreasing the yield of one or more undesirable products during pretreatment.

Abstract: Provided are methods and compositions for higher yields through the addition of pretreatment/hydrolysis extracts in the fermentation process. These fractions increase the rate of growth for biocatalysts and result in improved composition of fermentation end products.

Abstract: Provided are methods and compositions for high yields while using reduced enzyme loads in saccharification and fermentation processes. These methods increase the efficiency of enzymes and result in improved yields and composition of saccharification and fermentation end products.

Abstract: Provided are methods and compositions for high yields while using reduced enzyme loads in saccharification and fermentation processes. These methods increase the efficiency of enzymes and result in improved yields and composition of saccharification and fermentation end products.

Abstract: Provided are methods and compositions for high yields while using reduced enzyme loads in saccharification and fermentation processes. These methods increase the efficiency of enzymes and result in improved yields and composition of saccharification and fermentation end products.

Abstract: In one aspect, methods to enhance the production of ethanol and other fermentive end products from a wide variety of feedstocks by Clostridium microorganisms, such as Clostridium phytofermentans are disclosed. A method of improving fermentation performance of Clostridium microorganisms, such as Clostridium phytofermentans through the use of a fed-batch strategy is described, as well as methods of producing fermentive end products, such as alcohols and/or chemicals by fermenting Clostridium microorganisms, such as Clostridium phytofermentans in the presence of fatty acid-containing compounds and/or at reduced pH.

Abstract: In one aspect, this invention relates to production of useful fermentation end-products from biomass through simultaneous hydrolysis and fermentation by a microorganism, such as Clostridium phytofermentans. The invention also relates to the development of a process for efficient pretreatment and conversion of lignocellulosic biomass to end-products with high conversion efficiency (yield). In another aspect, methods for producing a fermentation end-product by fermenting hexose (C6) and pentose (C5) sugars with a microorganism, such as Clostridium phytofermentans are disclosed herein.