Acta Scientific Microbiology (ASMI) (ISSN: 2581-3226)

Research Article Volume 3 Issue 2

Design of Substrate Specific Consortium for Improved Biogas Production

Priyanka Dargode, Pooja More, Suhas Gore, Manju Sharma* and Arvind Lali

DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology (Formerly UDCT), Mumbai, India

*Corresponding Author: Manju Sharma, DBT-ICT Centre for Energy Biosciences, Institute of Chemical Technology (Formerly UDCT), Mumbai, India.

Received: January 18, 2020; Published: January 29, 2020

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Abstract

  The current study was aimed at design of substrate specific synthetic consortium for improved biogas production. Pure cultures specific to their roles were isolated from biogas digesters and used to design the synthetic consortium. The designed consortium was compared with natural consortium for biogas production efficiency in batch mode fermentation. The biogas yields obtained with designed consortium and natural consortium were 66% and 60% of theoretical maximum, respectively. The complete conversion of substrate to biogas was observed in 7 days with designed consortium in comparison to 35 days in case of natural consortium. The performance of designed consortium with respect to enhanced rate of digestion was attributed to presence of substrate specific microbes and their initial abundance. The higher abundance of bacteria and archaebacteria in the designed consortium as estimated using qPCR quantification was evident of the fact that initial abundance of specific microbes increases the rate of biogas production. This report is first of its kind in constructing substrate specific synthetic consortium and demonstrating its effectiveness in improvement of anaerobic digestion process. Overall, the presented work shall pave ways to implement substrate specific consortium design strategy for development of economically sustainable biogas production from diverse substrates.

Keywords: Anaerobic Digestion; Consortium Design; Isolation and Screening; Batch Mode Fermentation; QPCR Quantification

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Citation

Citation: Priyanka Dargode.,et al. “Design of Substrate Specific Consortium for Improved Biogas Production". Acta Scientific Microbiology 3.2 (2020): 118-128.



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