Table 3.

Quantitative analysis of SCFAs and BCAAs obtained from rat feces from three groups and different biological samples from humans

Compounds	Retention time (min)	Quantitative Mass	Group Aa (µmol g−1 feces)d (n=8)	Group Bb (µmol g−1 feces)d (n=8)	Group Cc (µmol g−1 feces)d (n=8)	Human Feces (µmol g−1)d (n=15)	Human Plasma (µM)d (n=15)	Human Urine (µM)d (n=15)
Acetic acid	2.86	61	30.4 ± 3.46	37.1 ± 6.01	45.8 ± 13.8	35.86 ± 16.8	341.1 ± 59.6	82.89 ± 60.0
Propionic acid	4.40	75	6.80 ± 0.91	4.05 ± 0.42	5.02 ± 1.5	11.40 ± 4.74	255.7 ± 60.1	108.2 ± 78.1
Isobutyric acid	5.42	89	1.30 ± 0.36	0.157 ± 0.044	0.151 ± 0.11	1.71 ± 1.05	7.83 ± 0.771	0.196 ± 0.103
Butyric acid	6.45	71	6.27 ± 3.7	3.74 ± 0.58	5.90 ± 3.1	6.35 ± 3.13	1.47 ± 1.13	2.98 ± 1.88
2-Methylbutyric acid	7.78	74	2.51 ± 1.5	0.623 ± 0.22	0.504 ± 0.20	1.15 ± 0.88	nd	nd
Isovaleric acid	7.86	61	1.13 ± 0.17	0.232 ± 0.040	0.155 ± 0.086	1.28 ± 0.92	nd	nd
Valeric acid	9.35	103	0.98 ± 0.20	0.31 ± 0.050	0.34 ± 0.094	1.25 ± 0.52	1.29 ± 0.46	0.224 ± 0.15
Caproic acid	12.11	99	3.89 ± 1.4	4.02 ± 1.8	3.79 ± 0.89	0.0744 ± 0.094	4.71 ± 1.1	0.969 ± 0.53
Heptanoic acid	13.87	113	0.14 ± 0.046	0.093 ± 0.082	0.070 ± 0.023	0.0519 ± 0.082	1.94 ± 0.61	0.232 ± 0.17
Valine	16.79	158	1.64 ± 0.31	0.465 ± 0.11	0.262 ± 0.11	2.023 ± 0.842	166.2 ± 17.9	26.60 ± 8.01
Leucine	17.14	172	4.11 ± 0.67	1.41 ± 0.21	0.929 ± 0.30	2.076 ± 0.837	95.08 ± 17.0	36.76 ± 6.03
Isoleucine	17.23	172	1.34 ± 0.32	0.451 ± 0.079	0.287 ± 0.10	1.47 ± 0.62	48.26 ± 7.5	9.77 ± 3.8

^aGroup A was administrated corn oil.

^bGroup B was administrated corn oil and ethanol.

^cGroup C was administrated MCFAs and ethanol.

^dValues are reported as means ± standard deviation

nd: not determined