Microencapsulation of Baker’s Yeast in Gellan Gum Beads Used in Repeated Cycles of Glucose Fermentation

Table 8

Fermentation rate values and the specific ethanol productivity for samples PD2 and PD3 as a function of the fermentation cycle.

Fermentation cycle	Fermentation rate, ri,; (% glucose conversion/min)		Specific productivity in ethanol; [)]
	PD2	PD3	PD2	PD3
I	0.24	0.27	0.60	0.60
II	0.31	0.27	0.97	0.80
III	0.29	0.22	1.07	0.60
IV	0.20	0.20	0.60	0.60
V	0.22	0.20	0.60	0.60
VI	0.27	0.20	0.83	0.60
VII	0.24	0.20	0.60	0.60
VIII	0.22	0.16	0.60	0.60
IX	0.18	0.16	0.60	0.50
X	0.20	0.20	0.60	0.60
Free yeast	0.07		0.60