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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۴، شماره ۱، صفحات ۱۶۲-۱۷۱
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عنوان انگلیسی Liquid-Liquid Microextraction Method Coupled with GC-FID Analysis to Evaluate the Possible Adulteration of Corn Oil with Different Vegetable Oils
چکیده انگلیسی مقاله Corn oil, a widely used and affordable food ingredient, undergoes fatty acid analysis primarily through Gas Chromatography (GC) equipped with a Flame Ionization Detector (FID) after the liquid-liquid microextraction method. This efficient technique identifies and quantifies Fatty Acid Methyl Esters (FAMEs) in pure and contaminated corn oils. The process involves liquid-liquid microextraction and transesterification with methanol for fatty acid methylation. FAMEs separation utilizes a specialized cyano-column, enabling the detection of positional and geometrical isomers with carbon chain lengths ranging from C8 to C28. The GC-FID method successfully resolves partial FAMEs overlap and quantifies conjugated fatty acids like Conjugated Linoleic Acid (CLA). Analysis revealed linoleic acid as the predominant monounsaturated fatty acid, followed by saturated oleic acid and unsaturated palmitic acid. Palm oil (PaO) exhibited a high palmitic acid content, exceeding 38%, while soybean oil (SoO) w:as char:acterized by α-linoleic acid (polyunsaturated) levels above 4.5%. The effect of important factors on the extraction efficiency including the type of extraction solvent, the volume of extraction solvent, extraction temperature, and extraction time were investigated, and the optimal values were determined. Under optimal conditions, the extraction process was used for the analysis FAMEs, and valuable results were obtained.
کلیدواژه‌های انگلیسی مقاله Edible oils,Vegetable oils,Corn oil,Fatty acid,Liquid-liquid microextraction,GC-FID
نویسندگان مقاله Biuck Habibi |
Analyticlal Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, IR. IRAN

Fahimeh Shahsavari |
Analyticlal Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, IR. IRAN

Majid Hashemi |
Chemistry department, Faculty of Sciences, Persian Gulf University, Bushehr, I.R. IRAN

Amir Abbas Matin |
Analyticlal Chemistry Laboratory, Department of Chemistry, Faculty of Sciences, Azarbaijan Shahid Madani University, Tabriz, IR. IRAN

نشانی اینترنتی https://ijcce.ac.ir/article_721100_caedb2476fae6592dcde083053d908b1.pdf
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