TY  - JOUR
AU  - Helm, Tabea
AU  - Niehoff, Paul-Joachim
AU  - Gätgens, Jochem
AU  - Stausberg, Thilo
AU  - Pichler, Bernadette
AU  - Häßler, Thomas
AU  - Wiechert, Wolfgang
AU  - Büchs, Jochen
AU  - Wierckx, Nick
AU  - Noack, Stephan
TI  - Introducing molasses as an alternative feedstock into itaconate production using Ustilago sp
JO  - New biotechnology
VL  - 77
SN  - 1871-6784
CY  - New York, NY [u.a.]
PB  - Elsevier
M1  - FZJ-2023-03206
SP  - 30 - 39
PY  - 2023
AB  - In this work, we established an efficient process for the production of itaconate from the regionally sourced industrial side-stream molasses using Ustilago cynodontis and Ustilago maydis. While being relatively cheap and more environmentally friendly than refined sugars, there are some major challenges to overcome when working with molasses. Some of those challenges are a high nitrogen load, unknown impurities in the feedstock, and high amounts of ill-favoured carbon sources, such as sucrose or lactate. We could show that the activity of the sucrose-hydrolysing enzyme invertase plays a crucial role in the efficiency of the process and that the fructose utilisation differs between the two strains used in this work. Thus, with a higher invertase activity, the ability to convert fructose into the desired product itaconate, and an overall higher tolerance towards undesired substances in molasses, U. maydis is better equipped for the process on the alternative feedstock molasses than U. cynodontis. The established process with U. maydis reached competitive yields of up to 0.38 g g−1 and a titre of more than 37 g L−1. This shows that an efficient and cost-effective itaconate production process is generally feasible using U. maydis, which has the potential to greatly increase the sustainability of industrial itaconate production.
LB  - PUB:(DE-HGF)16
C6  - 37336283
UR  - <Go to ISI:>//WOS:001038624600001
DO  - DOI:10.1016/j.nbt.2023.06.003
UR  - https://juser.fz-juelich.de/record/1014222
ER  -