In addition to the above processing techniques, in general there is another soursop leaf processing, the use of 10-15 sheets of dried soursop leaves with 2 cups boiling water (400 cc) so that the remaining 1 cup cooking water. Boiling process takes 1-1.5 hours, so a faster process than the above. The drying process should not be carried out under the scorching sun for fear it would damage compounds in soursop leaves.
"Dried soursop leaves have remained the same compound with soursop leaves wet since reduced the drying process only water content. Meanwhile, the compound in the leaves is maintained. Soursop leaf storage in the refrigerator up to a week since the plucking because a long cooling process is feared to damage the leaves apart aroma compounds in the leaves that are not bad because the fermentation process, "said Darmawan.
- See more at: http://www.belanjaalkes.com/blog/2015/08/fight-cancer-through-leaves-and-fruit-soursop?lang=en&PageSpeed=noscript#sthash.xEMhYL3u.dpuf