Netty Setiawati
Unknown Affiliation

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

PENURUNAN ANGKA ASAM PADA MINYAK JELANTAH Primata Mardina; Erlyta Faradina; Netty Setiawati
Jurnal Kimia (Journal of Chemistry) Vol. 6, No. 2 Juli 2012
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (124.76 KB)

Abstract

Acid number expresses free fatty acid content that has effect on quality of oil and fat product. High acid number in resulted from hydrolysis process that occurred during frying. Acid number could be reduced by adsorption. The objective of this research was to reduce acid number from waste cooking oil using adsorption process. The activated carbon from coconut shell was used as adsorbent. A specific amount of adsorbent was added into 150 grams of waste cooking oil, and the process was carried out with certain range of operation time. Stirring speed and temperature of adsorption process were maintained constant at 500 rpm and 27oC. The result showed free fatty acid adsorption or reduction in acid number efficiencies increase with higher adsorbent doses. Based on the result, the reduction in acid number of waste cooking oil using activated coconut shell carbon followed the Freundlich-type isotherms.