TABLE 2.

SCFA concentrations in fermentor samples (at the end of each 7-day feeding period) and molar proportions of the three major SCFA formed

SubstrateFermentorAcetate concn (mM)Propionate concn (mM)Butyrate concn (mM)Total SCFA concn (mM)Avg acetate mol%Avg propionate mol%Avg butyrate mol%
Mixed124.0 ± 2.321.0 ± 2.46.6 ± 0.754.4 ± 5.446.241.212.6
226.0 ± 3.423.7 ± 1.96.9 ± 0.159.7 ± 5.2
Amylopectin122.3 ± 0.818.5 ± 0.46.2 ± 0.150.4 ± 1.344.242.213.6
220.7 ± 3.122.4 ± 1.67.1 ± 0.154.8 ± 4.9
Pectin131.8 ± 2.26.8 ± 0.43.3 ± 0.143.8 ± 3.875.416.28.4
228.9 ± 4.66.1 ± 0.53.6 ± 0.141.1 ± 5.3
Inulin dahlia122.5 ± 3.815.9 ± 1.24.6 ± 0.147.3 ± 5.151.140.08.9
221.3 ± 2.918.2 ± 0.63.0 ± 0.144.9 ± 3.7
Xylan120.7 ± 1.711.6 ± 0.84.6 ± 0.140.9 ± 1.254.932.412.7
220.7 ± 0.712.7 ± 0.25.0 ± 0.142.4 ± 0.5
Inulin chicory125.9 ± 3.617.5 ± 1.54.1 ± 0.251.8 ± 5.453.437.88.8
227.2 ± 0.320.1 ± 1.74.6 ± 0.254.0 ± 5.6