Melanin is frequently used in medicine, pharmacology and cosmetic preparations. Biosynthesis of melanin with
tyrosinase transform the tyrosine into L-Dopa which in further converted into dopa chrome and auto
oxidized to indole –5,6-Quinone. The later it is polymerized spontaneously into DOPA – Melanin that
gives dark brown pigment (Mencher et al., 1962).
Since oxidative stress caused by reactive oxygen species (ROS) plays an important role in the