Effect of cell immobilization and pH on Scheffersomyces stipitis growth and fermentation capacity in rich and inhibitory media

Bioresources and Bioprocessing

Table 1 S. stipitis ethanol production and substrates uptake in bd HSSL with and without pH control

*S. stipitis*	pH control	Y _E/s	P _E	P _E/X	r _S
Suspended	No	0.20 ± 0.00	27.6 ± 0.0	0.29 ± 0.03	1.04 ± 0.12
Suspended	Yes	0.20 ± 0.01	35.4 ± 1.3	0.39 ± 0.02	1.37 ± 0.39
Immobilized	No	0.19 ± 0.09	7.6 ± 1.4	NA	NA
Immobilized	Yes	0.26 ± 0.06	27.5 ± 4.9	NA	NA

Y _E/S, maximum ethanol yield (g ethanol.(g consumed glucose + xylose)⁻¹); P _E, maximum ethanol productivity (mg ethanol.(L.h)⁻¹); P _E/X, maximum specific ethanol productivity (mg ethanol.(g CWW.h)⁻¹); r _S, maximum substrate uptake rate (mg consumed glucose + xylose.(g CWW.h)⁻¹); NA, not applicable.