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Claire DUMAS

Claire DUMAS

INRA research scientist

Bioprocess Engineering,

+33 (0) 5 67 04 88 49

INSA de Toulouse

135 avenue de Rangueil

31077 Toulouse cedex 4 - FRANCE

claire.dumas @ insa-toulouse.fr





Researcher at INRA (National Institute of Agronomic Research)


Actual position and research subject

I am a researcher at the National Institute of Agronomic Research (INRA) in bioprocesses engineering since 2008.

My work focused on the characterization of solids (physical and biochemical) to predict their anaerobic biodegradability and understand their biodegradation.

In september 2014, I move to the team Microbial ecosystem and purification and recovery processes in the Laboratory of Biological Systems and Processes Engineering (LISBP). My research focuses on the transformation and valorization of carbon thanks to complex microbial communities, in the context of bioeconomy. I am particularly interested in understanding and optimizing the impact of process parameters on degradation of the solid residues (i.e. wastes, lignocelllulosic biomass…) and also on how the localization of microbes during the process.



Education and Diploma

2007 : PhD in Chemical Engineering and Environnement – National Polytechnic Institute (INP) – Toulouse

2004 : Master degree in Chemical Engineering and Environnement – National institute of applied sciences (INSA)

2004 : Engineer in Chemical Engineering and Environnement - National institute of applied sciences (INSA) – Toulouse.

2001-2004 : National institute of applied sciences (INSA) – Toulouse

1999-2001 : National institute of applied sciences (INSA) – Rouen



Professional experience

Since September 2014 : Researcher at the Laboratory of Biological Systems and Processes Engineering (LISBP)- Toulouse (France)

September-December 2010 : Stay at the Advanced Water Management Center - University of Queensland - Brisbane (Australia).

From September 2008-August 2014 : Researcher at the Laboratory for Environmental Biotechnology (LBE) in charge of the subject « characterization and biological transformation of solid organic residues »  (agricultural residues, municipal waste , algae ... ) by anaerobic digestion- Narbonne (France)

2007-2008 : Post-doctorate in GPE - Laboratoire d’Ingénierie des Systèmes Biologiques et des Procédés (LISBP)-Toulouse. « Study and modelling of anaerobic digestion of sludge: effect of aerobic thermophilic co treatment”

2004-2007 : PhD student in Chemical Engineering and Environnement – Chemical Engineering laboratory (LGC) – Toulouse. “Microbially assisted electrochemical catalysis in fuel cells”.

2004 : Master degree trainee -  Laboratory of Process Engineering and Environment - Toulouse. "Modeling and numerical simulation of population balances floc in MATLAB. "




Scientific publications

  1. Dumas, C., Mollica, A., Féron, D., Basséguy, R., Etcheverry, L., Bergel, A.: Marine microbial fuel cell: Use of stainless steel electrodes as anode and cathode materials. Electrochim. Acta. 53, 468–473 (2007)
  2. Coufort, C., Dumas, C., Bouyer, D., Liné, A.: Analysis of floc size distributions in a mixing tank. Chem. Eng. Process. Process Intensif. 47, 287–294 (2008).
  3. Dumas, C., Mollica, A., Féron, D., Basseguy, R., Etcheverry, L., Bergel, A.: Checking graphite and stainless anodes with an experimental model of marine microbial fuel cell. Bioresour. Technol. 99, 8887–94 (2008).
  4. Carrère, H., Dumas, C., Battimelli, A., Batstone, D.J.J., Delgenès, J.P., Steyer, J.P.P., Ferrer, I., Carrere, H.: Pretreatment methods to improve sludge anaerobic degradability: a review. J. Hazard. Mater. 183, 1–15 (2010).
  5. Dumas, C., Perez, S., Paul, E., Lefebvre, X.: Combined thermophilic aerobic process and conventional anaerobic digestion: effect on sludge biodegradation and methane production. Bioresour. Technol. 101, 2629–36 (2010).
  6. Erable, B., Duţeanu, N.M., Ghangrekar, M.M., Dumas, C., Scott, K.: Application of electro-active biofilms. Biofouling. 26, 57–71 (2010).
  7. Abbassi-Guendouz, A., Brockmann, D., Trably, E., Dumas, C., Delgenès, J.-P., Steyer, J.-P., Escudié, R.: Total solids content drives high solid anaerobic digestion via mass transfer limitation. Bioresour. Technol. 111, 55–61 (2012).
  8. Jard, G., Jackowiak, D., Carrère, H., Delgenes, J.P., Torrijos, M., Steyer, J.P., Dumas, C.: Batch and semi-continuous anaerobic digestion of Palmaria palmata: comparison with Saccharina latissima and inhibition studies. Chem. Eng. J. 209, 513–519 (2012).
  9. Quéméneur, M., Bittel, M., Trably, E., Dumas, C., Fourage, L., Ravot, G., Steyer, J.-P., Carrère, H.: Effect of enzyme addition on fermentative hydrogen production from wheat straw. Int. J. Hydrogen Energy. 37, 10639–10647 (2012).
  10. Abbassi-Guendouz, A., Trably, E., Hamelin, J., Dumas, C., Steyer, J.P., Delgenès, J.-P., Escudié, R.: Microbial community signature of high-solid content methanogenic ecosystems. Bioresour. Technol. 133C, 256–262 (2013).
  11. Jard, G., Dumas, C., Delgenes, J.P., Marfaing, H., Sialve, B., Steyer, J.P., Carrère, H.: Effect of thermochemical pretreatment on the solubilization and anaerobic biodegradability of the red macroalga Palmaria palmata. Biochem. Eng. J. 79, 253–258 (2013).
  12. Jard, G., Marfaing, H., Carrère, H., Delgenes, J.P., Steyer, J.P., Dumas, C.: French Brittany macroalgae screening: Composition and methane potential for potential alternative sources of energy and products. Bioresour. Technol. 144, 492–498 (2013).
  13. Monlau, F., Barakat, A., Trably, E., Dumas, C., Steyer, J.-P., Carrère, H.: Lignocellulosic Materials Into Biohydrogen and Biomethane: Impact of Structural Features and Pretreatment. Crit. Rev. Environ. Sci. Technol. 43, 260–322 (2013).
  14. Motte, J.-C., Escudié, R., Bernet, N., Delgenes, J.-P., Steyer, J.-P., Dumas, C.: Dynamic effect of total solid content, low substrate/inoculum ratio and particle size on solid-state anaerobic digestion. Bioresour. Technol. 144, 141–148 (2013).
  15. Motte, J.-C., Trably, E., Escudié, R., Hamelin, J., Bernet, N., Delgenes, J.-P., Steyer, J.-P., Dumas, C.: Total solids content: a key parameter of metabolic pathways in dry anaerobic digestion. Biotechnol. Biofuels. 6, 164 (2013).
  16. Motte, J.-C., Escudié, R., Beaufils, N., Steyer, J.-P., Bernet, N., Delgenès, J.-P., Dumas, C.: Morphological structures of wheat straw strongly impacts its anaerobic digestion. Ind. Crops Prod. 52, 695–701 (2014).
  17. Motte, J.-C., Trably E., Hamelin J., Escudié R., Bonnafous A., Steyer J.-P., Bernet N., Delgenes J.-P., and Dumas C.. “Total Solid Content Drives Hydrogen Production through Microbial Selection during Thermophilic Fermentation.” Bioresource Technology 166 (August 2014): 610–15.
  18. Motte, J.-C., R. Escudié, J. Hamelin, J.-P. Steyer, N. Bernet, J.-P. Delgenes, and C. Dumas. “Substrate Milling Pretreatment as a Key Parameter for Solid-State Anaerobic Digestion Optimization.” Bioresource Technology 173 (December 2014): 185–92.
  19. Motte, J.-C, Sambusiti, C. Dumas C., and Barakat A.. “Combination of Dry Dark Fermentation and Mechanical Pretreatment for Lignocellulosic Deconstruction: An Innovative Strategy for Biofuels and Volatile Fatty Acids Recovery.” Applied Energy 147 (June 1, 2015): 67–73.
  20. Constant S., Basset C., Dumas C., Di Renzo F., Robitzer M., Barakat A., and Quignard F., “Reactive Organosolv Lignin Extraction from Wheat Straw: Influence of Lewis Acid Catalysts on Structural and Chemical Properties of Lignins.” Industrial Crops and Products 65 (March 2015): 180–89.
  21. Dumas C., Silva Ghizzi Damanesco G., Barakat A., Carrère H., Steyer J.-P., and Rouau X.. “Effects of Grinding Processes on Anaerobic Digestion of Wheat Straw” In press (2015) Ind. Crops Prod
  22. Motte, J.-C., Watteau, F., Escudié, R., Steyer, J.-P., Bernet, N., Delgenès, J.-P., Dumas, C. (2015). . Dynamic observation of the biodegradation of lignocellulosic tissue under solid-state anaerobic conditions. Bioresource technology, 191, 322-326. DOI : 10.1016/j.biortech.2015.04.13