Hesperidin is a flavanone glycoside (a type of flavonoid) that was isolated from the spongy inner peel of oranges, which is known as the mesocarp.[1]
Hesperidin (Hsd) is prominently found in citrus fruits like oranges, lemons, clementines, mandarins, and grapefruits. The name hesperidin is derived from the word “hesperidium”, a word for a berry with a pulpy, segmented interior and a leathery rind containing aromatic oils.[2][3] Its aglycone (i.e., missing a glycosyl group) form is called hesperetin (Hst).[4]