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Table 2 Consumption of sugars and synthesis of mannitol during fermentation of EPS− and EPS+ BSG

From: Brewers’ spent grain as substrate for dextran biosynthesis by Leuconostoc pseudomesenteroides DSM20193 and Weissella confusa A16

Starters

Time points

EPS−

EPS+

Glucose

Maltose

Fructose

Mannitol

Glucose

Maltose

Sucrose

Fructose

Mannitol

 

T0

514.5 ± 16.4a

1707.7 ± 46.9a

68.7 ± 24.3a

5.9 ± 2.5a

514.5 ± 16.4a

1707.7 ± 46.9a

4000.0*a

68.7 ± 24.3a

5.9 ± 2.5a

DSM20193

T6

319.4 ± 21.1b

1161.6 ± 151.1b

95.4 ± 2.2b

6.1 ± 0.7a

173.5 ± 36.6b

647.4 ± 114.7b,c

3531.7 ± 192.1b

183.6 ± 9.3b

10.1 ± 1.1a

T10

75.9 ± 3.6c

257.7 ± 57.1c

77.3 ± 3.7c

5.4 ± 0.9a

1126.1 ± 47.4c

980.3 ± 104.8c

nd

671.5 ± 83.5c

14.9 ± 3.6b

T16

77.3 ± 8.6c

570.9 ± 20.2d

78.3 ± 3.3c

6.1 ± 0.9a

791.5 ± 9.9a

1731.9 ± 409.7d

nd

899.9 ± 152.6 d

36.8 ± 4.1 b

T24

76.1 ± 7.6c

71.1 ± 0.7c

74.7 ± 0.7c

5.1 ± 0.5 a

1499.8 ± 188.3d

206.5 ± 79.2b

nd

1085.1 ± 28.7d

45.2 ± 8.2b

A16

T6

355.4 ± 43.8b

1201.1 ± 259.1 b

105.42 ± 5.6b

7.3 ± 0.4a

256.7 ± 73.5b

895.9 ± 35.6b

3722.9 ± 131.4b

288.6 ± 46.5 b

8.3 ± 1.7 a

T10

84.3 ± 16.1c

1196.1 ± 56.9b

99.2 ± 8.1 b

6.4 ± 0.3ab

148.6 ± 23.9c

387.4 ± 66.9c

nd

1357.8 ± 256.3 c

6.9 ± 0.4a

T16

105.5 ± 5.1c

1026.8 ± 41.7b

91.8 ± 3.3b

4.6 ± 1.1c

152.2 ± 45.5c

861.1 ± 39.8b

nd

1429.8 ± 334.6c

5.9 ± 0.7b

T24

77.5 ± 8.7c

166.6 ± 27.4c

79.9 ± 3.6b

4.9 ± 0.5bc

119.7 ± 10.6c

292.9 ± 27.5c

nd

1652.5 ± 55.6c

8.4 ± 2.6a

  1. nd not detected
  2. Consumption of sugars and synthesis of mannitol (mg/100 g fermented BSG) at different time points (hours) in control (EPS−) and sucrose supplemented (EPS+) BSG during fermentation with Leuconostoc pseudomesenteroides DSM20193 (DSM20193) and Weissella confusa A16 (A16)
  3. * Supplemented sucrose
  4. a−dValues in the same column with different letters are significantly different (Tukey’s test. P < 0.05