1.0. Introduction 4044 2.0. Biomass Chemistry and Growth Rates 4047 2.1. Lignocellulose and Starch-Based Plants 4047 2.2. Triglyceride-Producing Plants 4049 2.3. Algae 4050 2.4. Terpenes and Rubber-Producing Plants 4052 3.0. Biomass Gasification 4052 3.1. Gasification Chemistry 4052 3.2. Gasification Reactors 4054 3.3. Supercritical Gasification 4054 3.4. Solar Gasification 4055 3.5. Gas Conditioning 4055 4.0. Syn-Gas Utilization 4056 4.1. Hydrogen Production by Water−Gas Shift Reaction 4056

/pdf/synthesis-of-transportation-fuels-from-biomass-chemistry-3sckhzoqoz.pdf

Synthesis of transportation fuels from biomass: chemistry, catalysts, and engineering.

https://faculty.washington.edu/renatab/courses/PSE490/downloads/pretreatment.pdf

Features of promising technologies for pretreatment of lignocellulosic biomass.

Fundamental features of microbial cellulose utilization are examined at successively higher levels of aggregation encompassing the structure and composition of cellulosic biomass, taxonomic diversity, cellulase enzyme systems, molecular biology of cellulase enzymes, physiology of cellulolytic microorganisms, ecological aspects of cellulase-degrading communities, and rate-limiting factors in nature. The methodological basis for studying microbial cellulose utilization is considered relative to quantification of cells and enzymes in the presence of solid substrates as well as apparatus and analysis for cellulose-grown continuous cultures. Quantitative description of cellulose hydrolysis is addressed with respect to adsorption of cellulase enzymes, rates of enzymatic hydrolysis, bioenergetics of microbial cellulose utilization, kinetics of microbial cellulose utilization, and contrasting features compared to soluble substrate kinetics. A biological perspective on processing cellulosic biomass is presented, including features of pretreated substrates and alternative process configurations. Organism development is considered for "consolidated bioprocessing" (CBP), in which the production of cellulolytic enzymes, hydrolysis of biomass, and fermentation of resulting sugars to desired products occur in one step. Two organism development strategies for CBP are examined: (i) improve product yield and tolerance in microorganisms able to utilize cellulose, or (ii) express a heterologous system for cellulose hydrolysis and utilization in microorganisms that exhibit high product yield and tolerance. A concluding discussion identifies unresolved issues pertaining to microbial cellulose utilization, suggests approaches by which such issues might be resolved, and contrasts a microbially oriented cellulose hydrolysis paradigm to the more conventional enzymatically oriented paradigm in both fundamental and applied contexts.

/pdf/microbial-cellulose-utilization-fundamentals-and-4yec12qx1c.pdf

Microbial cellulose utilization: fundamentals and biotechnology.

Pretreatments to enhance the digestibility of lignocellulosic biomass

Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review

Ethanol Reassimilation andEthanol Tolerance in Pichia stipitis CBS6054asStudied by13CNuclear Magnetic Resonance Spectroscopy

Recombinant Saccharomyces cerevisiae expressing xylose reductase and xylitol dehydrogenase under control of different promoters: TH072

Le dédale du métabolisme

Saccharomyces cerevisiae Cells Xylulose- and Glucose-Fermenting Intermediary Metabolite Concentrations in

La presente invention concerne une souche de S. cerevisiae qui exprime les mecanismes d'utilisation de l'arabinose et du xylose et notamment une souche de S. cerevisiae qui fait fermenter l'arabinose et le xylose en ethanol, et plus particulierement une souche de S. cerevisiae presentant une surexpression ou une regulation a la hausse de la xylose-reductase ou de l'aldose-reductase (XR, AR) avec une xylitol-deshydrogenase (XDH) en meme temps que la surexpression ou que la regulation a la hausse de genes formant un mecanisme d'utilisation de l'arabinose. Cette invention se rapporte aux souches de laboratoire et de l'industrie qui presentent ces proprietes.

Bärbel Hahn-Hägerdal

Papers

Ethanol Reassimilation andEthanol Tolerance in Pichia stipitis CBS6054asStudied by13CNuclear Magnetic Resonance Spectroscopy

Recombinant Saccharomyces cerevisiae expressing xylose reductase and xylitol dehydrogenase under control of different promoters: TH072

Le dédale du métabolisme

Saccharomyces cerevisiae Cells Xylulose- and Glucose-Fermenting Intermediary Metabolite Concentrations in

Souches de saccharomyces cerevisiae capables de faire fermenter l'arabinose et le xylose