“…Roselle ( Hibiscus sabdariffa L.) belongs to the family Malvaceae; it is a shrubby annual species of Hibiscus and occurs in many tropical and subtropical countries [ 1 ]. It is cultivated mainly for its calyxes [ 2 ]. The calyx is rich in flavor, a rich source of micronutrients (vitamin C, B1, and B2), and contains colorants (anthocyanins) [ 3 ].…”