1. Multivariate analysis for FTIR in understanding treatment of used cooking oil using activated carbon prepared from olive stone
- Author
-
Alshuiael, Sara M. and Al-Ghouti, Mohammad A.
- Subjects
Greenhouse Effect ,Hot Temperature ,Biochemistry ,Physical Chemistry ,Plant Products ,Spectroscopy, Fourier Transform Infrared ,Sunflower Oil ,Cooking ,Flowering Plants ,Principal Component Analysis ,Physics ,Solid Phase Extraction ,Chemical Reactions ,Eukaryota ,Olives ,Classical Mechanics ,Agriculture ,Plants ,Lipids ,Sunflower ,Chemistry ,Experimental Organism Systems ,Charcoal ,Physical Sciences ,Medicine ,Sorption ,Oxidation-Reduction ,Research Article ,Science ,Research and Analysis Methods ,Vegetable Oils ,Vibration ,Fruits ,Model Organisms ,Plant and Algal Models ,Olea ,Oxidation ,Plant Oils ,Grasses ,Olive Oil ,Qatar ,Organisms ,Biology and Life Sciences ,Agronomy ,Maize ,Multivariate Analysis ,Animal Studies ,Microscopy, Electron, Scanning ,Adsorption ,Corn Oil ,Oils ,Crop Science - Abstract
In this study, activated carbons prepared from the green and black olive stone (green OSAC and black OSAC) were used as adsorbents to investigate their removal efficiencies for oxidation products and polar compounds from used sunflower and corn cooking oils. The degree of oxidation level and polar compounds were evaluated using Fourier transform infrared (FTIR) with the principal component analysis and ultra-performance liquid chromatography. Two FTIR absorption peaks were used for the oil evaluation, namely 3007-3009 cm-1, which is related to C-H symmetric stretching vibration of the cis double bonds, and ~1743 cm-1, which is related to = CH and ester carbonyl stretching vibration of the functional groups of the triglycerides, C = O. The principal component analysis results showed significant variations in the oxidation level of the sunflower and the corn oils occurred after consecutive heating and French fries frying for 10 days. The oxidation products that are adsorbed on the surface of the OSAC forms π-complexes with the C = C parts of the OSAC system. It can be concluded that the prepared adsorbents can be promising, efficient, economically effective, and environmentally friendly alternative adsorbents for oil treatment applications.
- Published
- 2020