Separated N. speciosa flower extractt had weighed and added by sterilizing distilled water with a ratio of 1:1
(w/v) respectively. Then blended for 3 min and filtered using a filter cloth to separate the extract and persipitat
(residue) in order to obtain N. speciosa flower extracts with concentration of 50%. The process of N. speciosa flower nanoencapsulation is by adding the filler such gelatin and cyclodextrin with the different proportion and
ratio. Using hotplate stirrer in 50°C temperature, the filtrate heated and add the filler and stirred on 15 minutes.
Furthermore done diminution emulsion particles into nanoparticles by using a dispersing machine (Ultra-Turrax)
22,000 rpm for 30 minutes (Naufalin & Herastuti, 2013).