Ammonia production by human faecal bacteria, and the enumeration, isolation and characterization of bacteria capable of growth on peptides and amino acids

Table 2 Amino acid utilization from peptides (Trypticase) and amino acids by mixed human faecal bacteria in vitro with and without added 5 μM monensin

	Amino acids		Amino acids + monensin		Trypticase		Trypticase + monensin			P value
	Mean^a	SE	Mean	SE	Mean	SE	Mean	SE	Trypticase vsamino acids	Effect of monensin, amino acids	Effect of monensin, trypticase
ASP	0.673	0.171	0.650	0.170	0.754	0.159	0.570	0.160	NS	NS	0.050
GLU	1.460	0.367	−0.155	0.153	1.356	0.363	0.532	0.276	NS	0.005	0.006
SER	0.804	0.103	0.539	0.148	0.735	0.106	0.535	0.130	NS	NS	NS
GLY	0.414	0.086	0.056	0.044	0.386	0.052	0.092	0.039	NS	0.005	0.001
HIS	0.178	0.030	0.055	0.023	0.200	0.029	0.077	0.029	NS	0.006	0.018
ARG	0.255	0.034	0.217	0.042	0.347	0.035	0.339	0.070	NS	NS	NS
THR	0.361	0.083	0.156	0.047	0.626	0.063	0.343	0.080	0.005	0.023	0.007
ALA	0.139	0.053	−0.027	0.041	0.207	0.042	0.032	0.050	NS	0.034	0.000
PRO	0.468	0.157	0.067	0.100	0.685	0.171	0.055	0.094	NS	0.013	0.012
TYR	0.078	0.031	0.024	0.019	0.062	0.013	0.031	0.014	NS	0.015	0.009
VAL	0.132	0.062	0.026	0.051	0.153	0.037	0.070	0.042	NS	NS	NS
ILE	0.140	0.054	0.040	0.040	0.178	0.038	0.088	0.023	NS	0.022	NS
LEU	0.278	0.097	0.151	0.098	0.343	0.082	0.250	0.097	NS	0.025	NS
PHE	0.094	0.031	0.042	0.024	0.149	0.031	0.082	0.015	NS	0.014	NS
LYS	0.542	0.130	0.396	0.146	0.764	0.166	0.498	0.164	0.043	0.014	NS
Total	6.017	1.214	2.237	0.907	6.946	0.976	3.596	0.658	NS	0.011	0.005

ISSN: 1471-2180