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All Journal Indonesian Journal of Chemistry and Environment
A. Setianingsih
Universitas Negeri Yogyakarta
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Materials Science & Nanotechnology

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Determination of Free Fatty Acid in Frying Oils of Various Foodstuffs F. Febrianto; A. Setianingsih; A. Riyani
Indonesian Journal of Chemistry and Environment Vol 2, No 1 (2019): June 2019
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (531.862 KB) | DOI: 10.21831/ijce.v2i1.30288

Abstract

Cooking oil is one of the basic human needs as food processing media. Repeated use of cooking oil by heating at high temperature will produce free fatty acid levels. This study aim to determine the levels of free fatty acids in frying oils of various foodstuffs which were chicken, catfish, and flour with acid base titration method.  The study population was frying oils of various foodstuffs of 0 up to 5th. The results of fatty acid levels in the repeated use of chiken (sample A), catfish (sample B) and flour foodstuffs shows the fatty acid levels exceed safe limits set by SNI 7709:2012. The fatty acid levels of the oil before it used was 0.24%. The increase of free fatty acid was influeced by how many the coocing oil used to frying. The highest level of fatty acid in coocing oil was reached after the fifth of friying. It happened because the level water in foodstuffs increase due to the used of coocing oil
Co-Authors A. Riyani F. Febrianto