Table 2. Fluorescence Lifetime of Two Trp Residues in Bovine Serum Albumin in the Absence or Presence of 25 μM EGC, EGCg, or MG at pH 3.0, 5.0, and 7.4.

	τ (ns)
	pH 3.0		pH 5.0		pH 7.4
	Trp134	Trp213	Trp134	Trp213	Trp134	Trp213
BSA	5.38	2.13	6.50	2.88	6.56	2.89
BSA + EGCg	5.24	1.86	5.49	1.43	4.92	1.34
BSA + MG	5.38	2.11	6.49	2.85	6.29	2.06
BSA + EGC	5.41	2.15	6.58	3.04	6.54	2.93