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Table 1 Parameters in YP medium containing a single sugar under a static condition at 30°C and 45°C

From: Utilization capability of sucrose, raffinose and inulin and its less-sensitiveness to glucose repression in thermotolerant yeast Kluyveromyces marxianus DMKU 3-1042

Medium

Temperature (°C)

Max. Y p/s (g/g)

Time of fermentation (h) a

μ x/s (h -1 ) at 6 h

Max. μ x/s (h -1 )

γ s (g/l h) at 6 h

Max. γ s (g/l h)

YPSuc

30

0.55 ± 0.04

24

0.77 ± 0.07

0.77 (6) ± 0.07

2.5 ± 0.02

2.5 (6) ± 0.02

 

45

0.44 ± 0.05

48

0.18 ± 0.10

0.18 (6) ± 0.10

3.4 ± 0.03

3.4 (6) ± 0.03

YPRaf

30

0.14 ± 0.03

18

0.44 ± 0.04

0.44 (6) ± 0.04

2.9 ± 0.04

2.9 (6) ± 0.04

 

45

0.04 ± 0.05

24

0.05 ± 0.09

0.06 (24) ± 0.10

1.2 ± 0.01

1.2 (6) ± 0.01

YPInu

30

0.52 ± 0.04

48

0.57 ± 0.11

0.57 (6) ± 0.11

0.66 ± 0.07

0.93 (12) ± 0.08

 

45

0.58 ± 0.01

18

0.14 ± 0.08

0.14 (6) ± 0.08

1.4 ± 0.10

1.4 (6) ± 0.10

YPGal

30

0.45 ± 0.03

36

0.14 ± 0.06

0.85 (18) ± 0.12

0.0 ± 0.00

2.1 (18) ± 0.09

 

45

-

-

-

-

-

-

  1. Values in parenthesis represent cultivation times
  2. Max. Y p/s maximum ethanol yield, μ x/s specific growth rate, Max. μ x/s maximum growth rate, γ s specific sugar utilization rate, Max. γ s maximum sugar utilization rate, ± SD from three independent experiments
  3. a Time required for the maximum ethanol concentration to be reached