KAJIAN SIFAT FISIKOKIMIA TEPUNG ONGGOK INDUSTRI BESAR DAN INDUSTRI KECIL

Abstract

Onggok is a solid waste from tapioca industry which still contains high enough carbodyrate content (63-68%). The product is quite abundant and has not been utilized optimally which actually can still be used as substrate for microbial growth that can produce other products that have economic value. This paper aims to examine the diverse characteristic characteristics of different sources of raw materials (large and small industries) and after being hydrolyzed with sulfuric acid. The results showed that the flour onggok from large industries contain lower moisture content, ash, fat, protein and starch, but higher crude fiber content than small industry flour. The optimum concentration of sulfuric acid to hydrolyze the Ittara and large industrial clusters at concentrations of 0.4 M for 30 minutes at 121 o C, resulting in reducing sugar of 3.89 mg/ml (small industry) and 2.47 mg/ml (large industry).