Glycoalkaloids imparting bitter taste in brinjal are

Glycoalkaloids impart a bitter taste in brinjal are Solasodine.
The presence of two kinds of steroidal saponosides imparts a bitter taste to eggplant. They are glycoalkaloids and melongosides.
Solasodine is a poisonous alkaloid chemical compound that occurs in plants of the family Solanaceae.
It has diuretic, anticancer, antifungal, cardiotonic, anti-spermatogenetic, antiandrogenic, immunomodulatory, antipyretic and various effects on the central nervous system.