Increased expression of the oxidative pentose phosphate pathway and gluconeogenesis in anaerobically growing xylose-utilizing Saccharomyces cerevisiae

Table 2 Metabolite production rates and yields during anaerobic growth on glucose and xylose.

	μ	r _s	r _xol	r _g	r _a	r _e	Y_xe	Y_xg	Y_se	Y_sxol
Glucose anaerobic	0.334 ± 0.006	2.6 ± 0.5	0	0.33 ± 0.01	0.01 ± 0.01	1.2 ± 0.2	3.3	0.98	0.43	0
Xylose anaerobic	0.0246 ± 0.0003	0.285 ± 0.005	0.058 ± 0.003	0.015 ± 0.004	0	0.126 ± 0.005	5.1	0.59	0.44	0.20

Symbols: μ, specific growth rate (h^-1); r, specific consumption/production rates (g/gDW×h): r_s, specific substrate consumption rate; r_xol, specific xylitol production rate; r_g, specific glycerol production rate; r_a, specific acetate production rate; r_e, specific ethanol production rate; Y, yields (g/g): Y_xe, ethanol yield on biomass; Y_xg, glycerol yield on biomass; Y_se, ethanol yield on substrate; Y_sxol, xylitol yield on substrate.

ISSN: 1475-2859