RT Journal Article
T1 Modelling the biphasic growth and product formation by Enterococcus faecium CECT 410 in realkalized fed-batch fermentations in whey
A1 Pérez Guerra, Nelson
A1 Fajardo Bernárdez, Paula
A1 Fuciños González, Clara
A1 Rodríguez Amado, Isabel
A1 Alonso González, Elisa
A1 Torrado Agrasar, Ana María
A1 Pastrana Castro, Lorenzo Miguel
K1 3199 Otras Especialidades Agrarias
K1 23 Química
K1 2403 Bioquímica
AB The influence of initial pH on growth and nutrient (total sugars, nitrogen, and phosphorous) consumption by Enterococcus faecium CECT 410 was studied during batch cultures in whey. With these data, two realkalized fed-batch fermentations were developed using different feeding substrates. The shift from homolactic to mixed acid fermentation, the biphasic kinetics observed for cell growth and nitrogen consumption and the increase in the concentrations of biomass and products (lactic acid, acetic acid, ethanol, and butane-2,3-diol) were the most noteworthy observations of these cultures. Modelling the fed-batch growth of Ent. faecium with the Logistic and bi-Logistic models was not satisfactory. However, biomass production was best mathematically described with the use of a double Monod model, which was expressed in terms of biomass, product accumulation, and nitrogen utilization. Product formation was successfully modelled with a modified form of the Luedeking and Piret model developed in this study.
PB Journal of Biomedicine and Biotechnology
SN 11107243
YR 2010
FD 2010
LK http://hdl.handle.net/11093/5874
UL http://hdl.handle.net/11093/5874
LA eng
NO Journal of Biomedicine and Biotechnology, 2010(290286): 1-16 (2010)
NO Instituto Nacional de Investigación y Tecnología Agraria | Ref. CAL01-045-C2-2
DS Investigo
RD 13-oct-2024