As part of Coline Perdrier's thesis and Estelle Doineau’s post-doc, the first scientific article from the LOOP4PACK project has been published in Materials Today Communications. It is entitled " Designing poly(3-hydroxybutyrate-co-3-hydroxyvalerate) P(3HB-co-3HV) films with tailored mechanical properties". Link to article
On April 25, 2023, Matteo Castiello successfully defended his thesis entitled "Production of P(3HB-co-3HV) in an open two-stage continuous reactor: influence of the carbon source on microbial selection and accumulation of the biopolymer". This thesis was carried out within the TBI Laboratory at INSA Toulouse and within the framework of the ANR LOOP4PACK. The jury was composed of the two reviewers, Patrick DABERT (OPAALE, Rennes) and Catherine BEAL [...]
After three and half years working within LOOP4PACK project, on March 22th, Coline Perdrier successfully defended her thesis work entitled “Production of ductile materials based on P(3HB-co-3HV) with high contents of 3HV: from biosynthesis strategy with Cupriavidus necator to thermomecanical shaping process”. Watch the defense on https://www.youtube.com/watch?v=tItX2y-e3os The jury composed of Christelle Simon-Colin (IFREMER), Manfred Zinn (HES-SO Valais Wallis), Etienne Paul (INSA Toulouse), Estelle Grousseau (University of Montpellier) [...]
As part of Coline Perdrier's thesis, the first scientific article from the LOOP4PACK project has been published in Process Biochemistry! It is entitled "Impact of overflow vs. limitation of propionic acid on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) biosynthesis". This article investigated the impact of carbon-limiting vs. carbon-overflow conditions thanks to fed-batch cultures, with continuous or sequential feeding of propionic acid as the sole carbon source, and phosphorus deficiency conditions. In this line, [...]
The partners of the LOOP4PACK project are pleased to announce that the D2.2 deliverable, "Separation and purification of PHA: Scale-up of the chosen PHA recovery method", is finished and has been sent to all partners on the 29/11/2022. This deliverable was written by Fanny Allayaud and Elise Blanchet (INSA-CRITT Bio-Industries). An abstract is available here
Effect of carbon source and P limiting level on microbial selection of PHA overproducers Auteurs : Laetitia Cavaillé, Sandrine Paissé, Matteo Castiello, Anne-Sophie Lepeuple, Claire Dumas, Guillermina Hernandez-Raquet, and Etienne Paul (paul@insa-toulouse.fr) Polyhydroxyalkanoates (PHA) are very attractive molecules because of their biodegradability and their industrial benefits. PHA production can be done using mixed microbial cultures, which lowers production costs and environmental impacts. However, these cultures must be enriched in [...]
On the occasion of the 18th International Symposium on Biopolymers (ISBP) in Sion (Switzerland), Mattéo Castiello – TBI – presented his study on the “PHA production by microbial consortia selected in continuous cultures: Modeling the effect of phosphorus limitation and nitrogen deficiency". It was also an opportunity to share and discuss with the scientific community involved in the various biopolymer production sectors. https://www.isbp2022.com/
The deliverables D4.1 and D4.3 concerning the cartography of the available resources ( valorizable co-products) and those of the necessary characteristics for the new packaging are now available on the document page of the website D4.1_Cartography-of-available-feedstock-resources v2 D4.3_Cartography-of-characteristics-needed-for-new-packagings v2
Coline Perdrier introduced her thesis work at the RRB 2022 conference (Renewable Resources and Biorefineries) held in Bruges, Belgium, with a poster entitled "Impact of specific feeding rate of propionic acid on the structure (especially %HV) and properties of microbial P(3HB-co-3HV) copolymer”. This was an opportunity to make the LOOP4PACK project internationally known and to discover other teams working on microbial PHAs (from their biosynthesis to their use). [...]
Etienne Paul and Matteo Castiello - TBI - had the opportunity to participate in the 9th International Conference on Engineering for Waste and Biomass Valorization (WasteEng 2022) which was held in Copenhagen from June 27 to 30. Matteo was able to present his work on the "Production of a P(3HB-co-3HV) copolymer with a mixed microbial culture from fermented organic waste". https://wasteeng2022.org/ [...]
