The purpose of this research is For the production and analysis of citric acid from a sample 2 type is jackfruit seed dry and seed with Rambutan seed drying with fungi and Aspergillus niger
. Using a recipe 1-6 control not shake shake.As an analysis technique the chromatography paper Method and titration. Determination of moisture content of the sample.Found Jackfruit seed moisture than dry rambutan seed drying.