Kinetic modeling of hydrogen and L-lactic acid production by Thermotoga neapolitana via capnophilic lactic fermentation of starch

2021 ◽  
Vol 332 ◽  
pp. 125127
Author(s):  
Nirakar Pradhan ◽  
Giuliana d'Ippolito ◽  
Laura Dipasquale ◽  
Giovanni Esposito ◽  
Antonio Panico ◽  
...  
2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Manel Ziadi ◽  
Sana M’Hir ◽  
Abdelkarim Aydi ◽  
Moktar Hamdi

Kinetic modeling of biomass and lactic acid production by Enterococcus faecalis SLT13 have been developed during batch culture in M17 and Hydrolyzed Cheese Whey (HCW) in 2 L and 20 L bioreactors. The specific growth rate μmax was higher in 20 L bioreactor (1.09 h−1); however, the maximum specific lactic acid production rate qpmax and maximum specific sugar utilization rate qsmax were higher in 2 L bioreactor. Biomass and sugar utilization were affected by lactic acid inhibition in HCW. No effects of substrate inhibition have been observed. Substrate limitation of biomass has been observed on HCW in 20 L bioreactor; the substrate limitation constant for biomass Ksx was 4.229 g/L. Substrate limitation of sugar consumption has been observed on M17 in 2 L bioreactor; the substrate limitation constant for sugar consumption Kss was 2.73 g/L. Compared to experimental data, the model provided good predictions for biomass, sugar consumption, and lactic acid production.


2008 ◽  
Vol 136 ◽  
pp. S494
Author(s):  
Betânia Hoss Lunelli ◽  
Rubens Maciel Filho ◽  
Maria Regina Wolf Maciel

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