TABLE 2.

Amino acid composition of Hexamita culture medium^a

Amino acid	Concn (mM) in medium		Concn change (mM) from day 0 to 6
	Day 0	Day 6
Alanine	7.01	8.39	+1.38
Arginine	2.44	1.71	−0.73
Asparagine	1.5	0.24	−1.26
Aspartic acid	2.34	3.64	+1.3
Citrulline	0.42	0.58	+0.16
Cystine	0.37	0.37	NCb
Glutamic acid	5.55	5.33	−0.22
Glutamine	<0.01	<0.01	NC
Glycine	1.89	1.91	+0.02
Histidine	1.21	1.44	+0.23
Isoleucine	3.26	3.51	+0.25
Leucine	9.84	10.19	+0.35
Lysine	5.45	6.01	+0.56
Methionine	1.72	1.9	+0.18
Hydroxyproline	<0.01	<0.01	NC
Ornithine	0.72	1.75	+1.03
Phenylalanine	3.91	4.05	+0.14
Proline	1.51	1.99	+0.48
Serine	2.61	2.52	−0.09
Taurine	<0.01	0.19	+0.19
Threonine	2.68	2.75	+0.07
Tyrosine	1.16	1.33	+0.17
Valine	4.58	4.59	+0.01

^aValues are the means of results of two separate experiments differing by <6%. 

^bNC, no change.