. 2012 Aug;78(16):5763–5772. doi: 10.1128/AEM.00327-12

Table 1.

Comparative analysis of VFA concentrations in batch fermentations of chicken cecal microbiota and human fecal microbiota in different growth media^a

Specimen	Growth medium	Mean VFA concn (mM) ± SD
Specimen	Growth medium	Acetate	Propionate	Butyrate	Isovalerate	Valerate	Total
Chicken	VI^b	39.5 ± 7.1^B	22.0 ± 1.5^A	7.9 ± 1.2^B	2.7 ± 0.2^B,C	4.5 ± 0.4^A	76.6 ± 6.2^A
	VI-wheat bran	28.4 ± 4.3^C	8.5 ± 1.3^C	3.5 ± 0.2^C	5.1 ± 0.4^A	3.2 ± 0.3^A,B	48.7 ± 1.7^B
	VI-maltose	58.0 ± 2.7^A	10.7 ± 0.5^C	6.9 ± 0.3^B	2.0 ± 0.2^C,D	4.1 ± 0.4^A	81.7 ± 1.1^A
	VL	36.8 ± 1.4^B	17.5 ± 1.7^B	12.0 ± 0.7^A	3.9 ± 0.4^A,B	5.6 ± 1.7^A	75.7 ± 3.5^A
	VI + uric acid^c	43.6 ± 9.3^A,B	24.9 ± 0.9^A	9.5 ± 1.5^A,B	0.4 ± 0.4^D	1.1 ± 0.3^B	79.5 ± 6.9^A
	VL + uric acid^c	40.6 ± 7.5^B	17.8 ± 2.7^B	11.5 ± 1.6^A	4.8 ± 1.4^A	5.2 ± 1.3^A	79.9 ± 6.0^A
Human	VI	35.9 ± 3.0^A	15.0 ± 0.8^C	12.6 ± 0.9^B,C	ND	ND	63.6 ± 2.7^B,C
	VI-wheat bran	34.1 ± 1.9^A	22.2 ± 1.3^B	10.7 ± 0.7^C	0.6 ± 0.1^B	0.5 ± 0.2^C	68.1 ± 1.2^B
	VI-maltose	40.9 ± 1.2^A	29.9 ± 0.7^A	23.5 ± 1.4^A	1.0 ± 0.1^A	3.1 ± 0.4^A	98.4 ± 1.0^A
	VL	25.3 ± 2.7^B	11.3 ± 0.9^C,D	11.8 ± 1.5^C	ND	ND	48.4 ± 2.7^D
	VI + uric acid^c	36.7 ± 0.3^A	14.9 ± 2.1^C	15.1 ± 0.5^B	1.1 ± 0.1^A	2.1 ± 0.1^B	69.9 ± 1.4^B
	VL + uric acid^c	36.6 ± 1.1^A	10.4 ± 1.1^C,D	9.5 ± 0.7^C	ND	ND	56.5 ± 1.1^C,D

Data are the means of data from six individual human fecal or chicken cecal samples ± SD (n = 6). Each sample was measured in triplicate. Mean values with unlike superscript roman letters are significantly different (P < 0.05), as determined by an ANOVA with a (post hoc) Bonferroni test. ND, none detected.

VI medium contained 8 g liter⁻¹ starch, VI-wheat bran medium contained 8 g liter⁻¹ wheat bran instead of starch, and VI-maltose contained 8 g liter⁻¹ maltose instead of starch.

Uric acid (0.7 g liter⁻¹) was added to VI and VL media.