Conversion of Xylose from Birch Hemicellulose Hydrolysate to 2,3-Butanediol with Bacillus vallismortis
| Autor: | Mari Kallioinen, Anja Kuenz, Malee Jäger, Mika Mänttäri, Harri Niemi, Ulf Prüße |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
Commodity chemicals Ultrafiltration birch hemicellulose hydrolysate Plant Science Xylose 01 natural sciences Biochemistry Genetics and Molecular Biology (miscellaneous) Hydrolysate 03 medical and health sciences chemistry.chemical_compound Hydrolysis Bacillus vallismortis Bacillus vallismortis 2 3-butanediol xylose 010608 biotechnology 2 3-Butanediol Hemicellulose Food science 030304 developmental biology 0303 health sciences lcsh:TP500-660 biology biology.organism_classification lcsh:Fermentation industries. Beverages. Alcohol chemistry Food Science |
| Zdroj: | Fermentation, Vol 6, Iss 86, p 86 (2020) Fermentation; Volume 6; Issue 3; Pages: 86 |
| ISSN: | 2311-5637 |
| Popis: | Biotechnologically produced 2,3-butanediol (2,3-BDO) is a potential starting material for industrial bulk chemicals, such as butadiene or methyl ethyl ketone, which are currently produced from fossil feedstocks. So far, the highest 2,3-BDO concentrations have been obtained with risk class 2 microorganisms and pure glucose as substrate. However, as glucose stays in competition to food and feed industries, a lot of effort has been done in the last years finding efficient alternative substrates. Thereby xylose from hydrolysed wood hemicelluloses is a promising substrate for the production of 2,3-BDO. The risk class 1 microorganism Bacillus vallismortis strain was identified as a very promising 2,3-BDO producer. The strain is able to utilize xylose almost in the same manner as glucose. B. vallismortis is less prone to common inhibiting compounds in lignocellulosic extracts/hydrolysates. When using a concentrated hemicellulose fraction from birch wood hydrolysate, which was produced with ultrafiltration and after which the acetate concentration was reduced, a yield of 0.43 g g−1 was achieved and the xylose consumption and the 2,3-BDO production is basically the same as using pure xylose. |
| Databáze: | OpenAIRE |
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