Mayumi METE Thesis defense

Address:

IMT Altantique - campus de Nantes - Amphithéâtre Georges Besse

Ms Mayumi Mete from the  Energy Systems and Environment Department (DSEE) and the GEPEA laboratory, will present her research about :

"Conception and optimisation of synthetic ecosystem for dihydrogen production from industrial wastes"

 

Thesis defense notice

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Dark fermentation of dairy waste offers a concrete solution to environmental, industrial and economic issues. A wide range of microbial species can produce biohydrogen by fermentation. The choice of inoculum for this process is crucial, and depends on the process' need for control, repeatability, robustness and adapta bility. While pure cultures enable more precise control of the process, mixed cultures and cocultures enable the characteristics of several organisms to be exploited, as well as their synergy. Athena Recherche et Innovation's reference process currently us es a pure culture To improve performance, mixed cultures were studied. Despite an enrichment step, the results obtained did not improve these results. However, biotechnological, microbiological and microbial ecology tools showed their strength in identifying and isolating b iotic factors for H 2 production, in order to design cocultures. While co culturing with only organisms present in high abundance did not improve the process,
co culturing with both majority and minority organisms significantly improved H 2 production yields and productivity.

Organizer(s)

As part of the joint thesis accreditation between IMT Atlantique and the SPIN doctoral school

 

keywords: biohydrogen, coculture, dairy wastes, dark fermentation, enrichment

Published on 06.12.2023
 
 
 
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