Histidine may be one of them.
It is a combination of amino acids, beta-alanine, and Histidine.
In addition, Histidine is also present in green vegetables, but less.
Moreover, Carnosine
is more willing to react with Histidine and also the concentration of Histidine is more than alanine.
A1 has the amino acid Histidine at the 67th position in the chain,
while A2 has proline in that position.
Another amino acid that contains this fruit is Histidine that works as a vasodilator and stimulates the creation of gastric juice.
According to the compositional role of Carnosine and Histidine, Beta Alanine increases protein synthesis
and calcium release from the sarcoplasmic network and the creation of working potential.