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.Analysis method of titration in jackfruit seed dry and rambutan seed drying.Found Optimal conditions for production of citric acid.Is The conditions do not shake When using the jackfruit seed dry and rambutan seed drying