ANTIOXIDANT PROPERTIES OF BANANAS
Antioxidant can be generally categorized into two main
groups, namely primary antioxidants and secondary
antioxidants. DPPH assays often used to measure the ability
of primary antioxidants in plants where these primary
antioxidants react to scavenge the free radical from DPPH
solution hence suppress the formation of initiation chain of
free radical and destroy the propagation chain by donating
hydrogen atom or electron so that the free radical can be
changed to a more stable form of products (Nurliyana et al.
2010 & Yan et al. 2006). This indirectly contributes to the
discoloration of DPPH solution from purple to yellow.