TABLE 5.

Concentrations of free amino acids in UF-cheese over time^a

Amino acid	Initial concn in UF retentate (nmol/ml)	Concn (nmol/ml) in UF-cheese at indicated sampling time
		2 h	8 h	1 day	7 days
Thr	9	10	X	26	578
Ser	13	17	X	20	292
Gly	81	78	18	69	272
Met	ND	ND	ND	ND	13
Val	40	39	52	439	1,338
Ile	ND	ND	ND	19	174
Leu	ND	ND	ND	125	699
Tyr	ND	ND	29	103	189
Phe	ND	ND	26	50	275
Lys	33	37	279	590	832
His	ND	ND	63	117	158
Arg	10	21	24	ND	ND
Pro	ND	ND	303	796	973
Ala	49	33	44	151	871
Asp	15	15	121	162	213
Asn	ND	ND	ND	ND	302
Glu	232	240	267	1,167	2,529
Gln	ND	ND	ND	ND	386
Cit	ND	ND	29	136	224
Orn	ND	ND	ND	31	162
Total	4,051	4,009	5,398	8,674	16,562

^aCys and Trp were not detected at any sampling time. X, missing value; ND, not detected.