Antioxidant in natural blue colour of gynochthodes sublanceolata (pitang leaves)

Gynochthodes sublanceolata express several color due to present of various pigments. Extraction of the leaves produce a dark-purplish color and analysis of the extract shows higher antioxidant properties with percentage of DPPH inhibition (75.7+0.05), in comparison to Salacca eduilts (salak fruit), Hylocerous polyrhiruz (red pitaya) and Ipomea batatas L. (purple sweet potato). Gynochthodes sublanceolata seem to have high potential as food colorant which provide beneficial values such as antioxidant which not provided by synthetic coloring.