Taste evaluations of angiotensin I converting enzyme inhibitors, Leu-Lys-Tyr analogues.

Tastes of Leu-Lys-Tyr (LKY) analogues, a series of potent angiotensin I converting enzyme (ACE) inhibitory peptides were evaluated. Some of these analogues were found to be sweet, such as Val-Lys-Tyr and Ala-Orn-Tyr. Furthermore, the structural requirements for sweetness or decreasing the bitterness were investigated by considerations of the structure-taste relationship with LKY analogues.