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Bioresources and Bioprocessing

Table 4 Ethanol yields and conversion efficiencies for all treatments in GSH process

From: Germ soak water as nutrient source to improve fermentation of corn grits from modified corn dry grind process

Treatments

Final average ethanol concentration (%)

Average conversion efficiency (%)

Average fermentation rates (% v/v/h)

Control

15.10 c

76.75 c

0.245 e

Protease

16.63 a

84.58 a

0.378 d

Germ soak water 2 h 30 °C

15.47 b

76.60 c

0.431 c

Germ soak water 12 h 30 °C-PS

16.35 a

82.78 b

0.490 b

Germ soak water 12 h 30 °C-FS

16.63 a

84.09 ab

0.528 a

B-vitamins

16.43 a

83.91 ab

0.532 a

B-vitamins + germ soak watera

16.53 a

83.23 b

0.525 a

  1. Means followed by the same letter in one column are statistically not different (at P < 0.05)
  2. PS partial slurry, FS full slurry
  3. aPartial slurry of 12 h 30 °C germ soak water
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