tailieunhanh - Handbook of plant based biofuels - Chapter 6

6 Bioethanoloffrom Biomass Production Ethanol from Molasses Velusamy Senthilkumar and Paramasamy Gunasekaran contents Abstract 73 Introduction 74 Types of Molasses 74 General Process for the Production of Ethanol from Molasses . 75 Fermentation of Molasses by Saccharomyces spp. 76 Ethanol Fermentation by the Cell Recycle System . 78 Fermentation of Molasses Using the Thermotolerant Yeast K. marxianus . 79 Strategies for the Improvement of the Production of Ethanol by K. marxianus. | 6 Bioethanol from Biomass Production of Ethanol from Molasses Velusamy Senthilkumar and Paramasamy Gunasekaran CONTENTS Types of General Process for the Production of Ethanol from Fermentation of Molasses by Saccharomyces Ethanol Fermentation by the Cell Recycle Fermentation of Molasses Using the Thermotolerant Yeast K. marxianus .79 Strategies for the Improvement of the Production of Ethanol by K. Potential of Zymomonas mobilis for the Production of Ethanol from Adaptation of Z. mobilis for Fermentation of Cane Fermentation Kinetics of Z. mobilis at High Concentration of the Continuous Fermentation of Diluted Molasses by Z. ABSTRACT In recent years much attention has been paid to the conversion of biomass into fuel ethanol apparently the cleanest liquid fuel alternative to the fossil fuels. Agronomic residues such as corn stover corn cobs and stalks sugarcane waste wheat or rice straw forestry and paper mill wastes and dedicated energy crops are the major biomass resources considered for the production of fuel ethanol. Molasses one of the renewable biomass resources a main by-product of the sugar industry represents a major fermentation feedstock for commercial ethanol production. Significant advances have been made in the last two decades in developing the technology for ethanol fermentation from molasses. This chapter gives an overview of the status of 73 2009 by Taylor Francis Group LLC 74 Handbook of Plant-Based Biofuels ethanol fermentation from molasses and processes applied for the improvement of ethanol production by ethanologenic microorganisms such as the yeasts Saccharo-myces and Kluyveromyces and the bacterium Zymomonas mobilis. INTRODUCTION Much biofuel research is presently directed towards the improvement of the .

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