Table 1.

The effect of the increasing amounts of acetylated enkephalins on the degradation of nonacetylated enkephalins

[Ac-Met-enk]/[Met-enk]	% Degradation	[AC-Leu-enk]/[Leu-enk]	% Degradation
0.25	100.00 ± 0	0.90	100.00 ± 0
0.90	43.00 ± 2	2.00	98.00 ± 0.5
2.00	21.00 ± 9	3.00	94.00 ± 0.8