Bioprocess optimization for lactic and succinic acid production from a pulp and paper industry side streamShow others and affiliations
2023 (English)In: Frontiers in Bioengineering and Biotechnology, E-ISSN 2296-4185, Vol. 11, article id 1176043Article in journal (Refereed) Published
Abstract [en]
The effective and cheap production of platform chemicals is a crucial step towards the transition to a bio-based economy. In this work, biotechnological methods using sustainable, cheap, and readily available raw materials bring bio-economy and industrial microbiology together: Microbial production of two platform chemicals is demonstrated [lactic (LA) and succinic acid (SA)] from a non-expensive side stream of pulp and paper industry (fibre sludge) proposing a sustainable way to valorize it towards economically important monomers for bioplastics formation. This work showed a promising new route for their microbial production which can pave the way for new market expectations within the circular economy principles. Fibre sludge was enzymatically hydrolysed for 72 h to generate a glucose rich hydrolysate (100 g·L−1 glucose content) to serve as fermentation medium for Bacillus coagulans A 541, A162 strains and Actinobacillus succinogenis B1, as well as Basfia succiniciproducens B2. All microorganisms were investigated in batch fermentations, showing the ability to produce either lactic or succinic acid, respectively. The highest yield and productivities for lactic production were 0.99 g·g−1 and 3.75 g·L−1·h−1 whereas the succinic acid production stabilized at 0.77 g·g−1 and 1.16 g·L−1·h−1. Copyright © 2023 Olszewska-Widdrat, Xiros, Wallenius, Schneider, Rios da Costa Pereira and Venus.
Place, publisher, year, edition, pages
Frontiers Media S.A. , 2023. Vol. 11, article id 1176043
Keywords [en]
bioeconomy, fermentation, fibre sludge, hydrolysate, lactic acid, succinic acid, Bacteriology, Glucose, Industrial chemicals, Paper and pulp industry, Pulp, Acid production, Bio-based, Bioprocess optimization, Fiber sludge, Microbial production, Platform chemicals, Pulp and paper industry, Side streams, Succinic acids
National Category
Bioprocess Technology
Identifiers
URN: urn:nbn:se:ri:diva-65548DOI: 10.3389/fbioe.2023.1176043Scopus ID: 2-s2.0-85161057437OAI: oai:DiVA.org:ri-65548DiVA, id: diva2:1776439
Note
This work was funded from the European Union’s Horizon 2020 Research and Innovation Program under Grant Agreement No. 952941 (BIOMAC Project).
2023-06-282023-06-282024-05-22Bibliographically approved