Steroidal glycoalkaloids (SGAs) are specialized metabolites found in members of Solanum species, and also known as toxic substances food crops such tomato (Solanum lycopersicum), potato tuberosum), eggplant melongena). SGA biosynthesis can be divided into two main parts: formation steroidal aglycones, which derived from cholesterol, glycosylation at the C-3 hydroxy group. This review focuses on...