Flower of Nicolai speciosa contain some bioactive compounds which are potential as natural antioxidant agent. N. speciosa
flowers contains bioactive compounds such as polyphenols, alkaloids, flavonoids, steroids, saponins and essential oils.
Unfortunately, extract of N. speciosa flower is very volatile and not stable upon exposures to light and oxygen. Therefore the
extract should be modified into nanoencapsulan powder. This research aimed 1) to study the best encapsulant proportion of
gelatin-cyclodextrin (w/w) and N. speciosa flower extract proportion that affected into antioxidant activity.