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Agroindustrial biomass for xylanase production by Penicillium chrysogenum: Purification, biochemical properties and hydrolysis of hemicelluloses
Conclusion The xylanase from P. chrysogenum F-15 showed lower enzymatic activity on commercial xylan than on hemicellulose from agroindustry biomass and its biochemistry characteristics, such as stability at 40°C and pH from 4.0 to 10.0, shows the potential of this enzyme for application in food, feed, pulp and paper industries and for bioethanol production. (Source: Electronic Journal of Biotechnology)
Source: Electronic Journal of Biotechnology - April 12, 2018 Category: Biotechnology Source Type: research

Evaluation of biogas and syngas as energy vectors for heat and power generation using lignocellulosic biomass as raw material
Publication date: Available online 3 April 2018 Source:Electronic Journal of Biotechnology Author(s): Juan Camilo Solarte-Toro, Yessica Chacón-Pérez, Carlos Ariel Cardona-Alzate The use of non-renewable energy sources to provide the worldwide energy needs has caused different problems such as global warming, water pollution and smog production. In this sense, lignocellulosic biomass has been postulated as a renewable energy source able to produce energy carriers that can cover this energy demand. Biogas and syngas are two energy vectors that have been suggested to generate heat and power through their use in cogener...
Source: Electronic Journal of Biotechnology - April 3, 2018 Category: Biotechnology Source Type: research

Scaling-up fermentation of Escherichia coli for production of recombinant P64k protein from Neisseria meningitidis
Conclusions The methodology described herein, for the KLa/k scale-up fermentation criterion, allowed us to obtain the P64k protein at 50 l scale. A fermentation process for the production of P64k protein from N. meningitidis was established, a protein to be used in future vaccine formulations in humans. (Source: Electronic Journal of Biotechnology)
Source: Electronic Journal of Biotechnology - March 29, 2018 Category: Biotechnology Source Type: research

Methods for the genetic manipulation of marine bacteria
Publication date: Available online 26 March 2018 Source:Electronic Journal of Biotechnology Author(s): Zahraa Zeaiter, Francesca Mapelli, Elena Crotti, Sara Borin Genetic manipulation of bacteria is a procedure necessary to obtain new strains expressing peculiar and defined genetic determinants or to introduce genetic variants responsible for phenotypic modifications. It can be applied to explore the biotechnological potential associated to environmental bacteria and to exploit the functional properties of specific genes when inserted in an appropriate host. In the last years, marine bacteria have received an increas...
Source: Electronic Journal of Biotechnology - March 26, 2018 Category: Biotechnology Source Type: research

Increasing pinosylvin production in Escherichia coli by reducing the expression level of the gene fabI-encoded enoyl-acyl carrier protein reductase
Conclusion A reduction in the transcript level of fabI caused by the elimination of the -35 and upstream promoter sequences is a successful strategy to improve pinosylvin production in E. coli. (Source: Electronic Journal of Biotechnology)
Source: Electronic Journal of Biotechnology - March 16, 2018 Category: Biotechnology Source Type: research