Efficient Detection of Edible Oils Adulterated with Used Frying Oils through PE-film-based FTIR Spectroscopy Combined with DA and PLS
| Autor: | Xiuzhu Yu, Rui Zhang, Qi Li, Xiaoli Liu, Yuxing Kou |
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| Rok vydání: | 2018 |
| Předmět: |
Chromatography
Materials science General Chemical Engineering 010401 analytical chemistry Food Contamination 04 agricultural and veterinary sciences General Medicine General Chemistry 040401 food science 01 natural sciences Rapid detection 0104 chemical sciences 0404 agricultural biotechnology Qualitative analysis Dietary Fats Unsaturated Polyethylene Spectroscopy Fourier Transform Infrared Partial least squares regression Food Quality Edible oil Fourier transform infrared spectroscopy Linear correlation |
| Zdroj: | Journal of Oleo Science. 67:1083-1089 |
| ISSN: | 1347-3352 1345-8957 |
| Popis: | Edible oil adulteration has been a considerable problem worldwide, and rapid detection methods should be established. In this study, a validation method for edible oil adulterated with used frying oil (UFO) was introduced through Fourier transform infrared (FTIR) spectroscopy. The spectral region of 6000-400 cm-1 was determined through FTIR by using a disposable polyethylene film, and absorption profiles at 1550-650 cm-1 region could be used for detection analysis. A qualitative analysis model was established through discriminant analysis, and edible oil adulteration with more than 1% content of UFO could be qualitatively analyzed. A quantitative analysis model was also created through partial least squares regression. When the actual value was more than 1.5%, the predicted and actual values showed good linear correlation. FTIR coupled with chemometric analysis is a useful tool to detect edible oil adulteration. |
| Databáze: | OpenAIRE |
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