Water deficit and light intensity did not significantly affect DPPH
scavenging activity. Cassumunar ginger survives the dry season as
a dormant rhizome with minimum metabolic activity and a low
respiration rate. Therefore, it may not suffer from oxidative stress
because of the equilibrium conditions that are achieved between
reactive oxygen species and antioxidants such as curcuminoids
(cassumunin A–C) and volatile oils.