Subject area	Agricultural and biological sciences
More specific subject area	Green chemistry
	Analysis of phenolic compounds in vegetable oils
Type of data	Figure, Excel files
How data was acquired	UV spectra: liquid–liquid extraction (or direct solubilisation for standard phenolic compounds) followed by UV absorption analysis (Agilent Cary 60 spectrophotometer, Agilent Technologies, Santa Clara, USA).
	Phenolic compounds content: liquid-liquid extraction followed by Folin-Ciocalteu assay
Data format	Pre-processed
Experimental factors	Oil samples were directly submitted to liquid-liquid extraction
Experimental features	A 6:1:6 lactic acid:glucose:water DES was prepared. Standard phenolic compounds were directly solubilized in DES. Each oil sample was submitted to both water-methanol and DES extraction in duplicate. Water/methanol extracts were submitted to the Folin-Ciocalteu assay for determination of phenolic compounds content. DES extracts were submitted to direct UV absorption analysis
Data source location	Bari, Italy
Data accessibility	Data is provided with this article