Not always with protein. Glutamate is an amino acid, and the taste buds are uniquely responsive to it. While it is a major component of many proteins, not all proteins have a lot of it, so would not be as sensed by those taste buds.
58 posted on 02/16/2014 5:17:49 AM PST by yefragetuwrabrumuy
(WoT News: Rantburg.com)