Production of liquid biofuels from renewable resources

Bioethanol production from agricultural wastes: An overview

Trends in bioconversion of lignocellulose: Biofuels, platform chemicals & biorefinery concept

http://kfrserver.natur.cuni.cz/studium/prednasky/vyberclanku/pdf/p68_ucit/7_LIMAYEM.pdf

Lignocellulosic biomass for bioethanol production: current perspectives, potential issues and future prospects.

Microalgae dewatering is a major obstruction to industrial-scale processing of microalgae for biofuel prodn. The dil. nature of harvested microalgal cultures creates a huge operational cost during dewatering, thereby, rendering algae-based fuels less economically attractive. Currently there is no superior method of dewatering microalgae. A technique that may result in a greater algal biomass may have drawbacks such as a high capital cost or high energy consumption. The choice of which harvesting technique to apply will depend on the species of microalgae and the final product desired. Algal properties such as a large cell size and the capability of the microalgae to autoflocculate can simplify the dewatering process. This article reviews and addresses the various technologies currently used for dewatering microalgal cultures along with a comparative study of the performances of the different technologies.

Dewatering of microalgal cultures : a major bottleneck to algae-based fuels

Comparative Evaluation of Lignin Derived from Different Sugarcane Bagasse Pretreatments in the Synthesis of Wood Adhesive

Lignocellulosic ethanol is emerging as the prominent candidate for renewable liquid transportation fuels, and the conversion of biomass to ethanol requires enzymatic hydrolysis. Enzymes that hydrolyze biomass have been the subject of several studies, since the cost estimations of second-generation ethanol show significant contributions by this single consumable. The chapter introduces biomass-hydrolyzing enzymes in the context of biorefineries and provides an overview on the current knowledge and understanding of these enzymes with respect to their types, mode of action, regulation of gene expression, and synergies. The changing concepts about the role of individual enzymes and the new discoveries on lignocellulose breakdown are presented to highlight the developments in biomass hydrolysis paradigm. It also covers the current strategies employed for commercial production of different lignocellulose-hydrolyzing enzymes and their blending to derive efficient cocktails. Finally, the importance of cost reduction in production and usage of biomass hydrolysis enzymes for a cost-effective bioethanol technology is discussed along with the current approaches in addressing this.

Enzymes for Bioenergy

Production of polyhydroxyalkanoates from propylene oxide saponification wastewater residual sludge using volatile fatty acids and bacterial community succession.

Media components were optimized using two-step statistical design of experiments for enhancing endoglucanase/carboxymethyl cellulase (CMCase) production by Trichoderma reesei RUT C30. A Placket-Burman design identified cellulose concentration and pH as the most significant variables, which influenced the CMCase activity. Central composite design was employed to optimize these selected parameters. The optimal activity was obtained at cellulose concentration 19.7 g/L and pH of 7.2. Under the optimized conditions, CMCase activity was 83.63 ± 1.86 IU/mL and filter paper activity was 2.58 ± 0.2 filter paper units per mL. Enzyme productivity was higher compared to previous reports. The enzyme produced from T. reesei was concentrated and was evaluated for deinking of printed paper, which demonstrated the suitability of the enzyme for this application.

Production of endoglucanase from Trichoderma reesei RUT C30 and its application in deinking of printed office waste paper

Cellulase Hyper-Producing Fungus Penicillium janthinellum NCIM 1366 Elaborates a Wider Array of Proteins Involved in Transport and Secretion, Potentially Enabling a Diverse Substrate Range

Rajeev K. Sukumaran

Papers

Comparative Evaluation of Lignin Derived from Different Sugarcane Bagasse Pretreatments in the Synthesis of Wood Adhesive

Enzymes for Bioenergy

Production of polyhydroxyalkanoates from propylene oxide saponification wastewater residual sludge using volatile fatty acids and bacterial community succession.

Production of endoglucanase from Trichoderma reesei RUT C30 and its application in deinking of printed office waste paper

Cellulase Hyper-Producing Fungus Penicillium janthinellum NCIM 1366 Elaborates a Wider Array of Proteins Involved in Transport and Secretion, Potentially Enabling a Diverse Substrate Range