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Ascorbic acid and choline chloride: A new natural deep eutectic solvent for extracting tert-butylhydroquinone antioxidant
- Source :
- Journal of Molecular Liquids. 260:173-179
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- A novel natural deep eutectic solvent (NADES) based on choline chloride and ascorbic acid (vitamin C) was synthesized for the first time. This NADES is green since choline chloride and vitamin C are frequently used food additives. And ultrasonic-assisted liquid-liquid microextraction technique was employed using this NADES for the extraction tert-butylhydroquinone from edible oils, which was coupled with the HPLC-UV analysis. The experimental conditions of liquid-liquid microextraction were optimized, and a near 100% extraction efficiency was obtained. The liquid-liquid microextraction combined HPLC-UV method for the determination of tert-butylhydroquinone showed good recovery (i.e., 96.1–109%) and precision (i.e., the relative standard deviation for intra-day and inter-day precision were 1.8% and 2.9%, respectively), as well as a lower limit of detection (i.e., 0.02 mg/kg). This method was successfully applied in the determination of tert-butylhydroquinone in 12 kinds of edible oils, and the results were close to those of conventional liquid-liquid extraction with methanol. Importantly, this novel NADES (choline chloride + vitamin C) exhibited an excellent protection ability for tert-butylhydroquinone during the extraction process, which indicated that this NADES could be used as an excellent extraction medium for easily oxidized compounds in complicated samples.
- Subjects :
- Detection limit
Antioxidant
Chromatography
food.ingredient
010405 organic chemistry
medicine.medical_treatment
Food additive
010401 analytical chemistry
Extraction (chemistry)
Condensed Matter Physics
Ascorbic acid
01 natural sciences
Atomic and Molecular Physics, and Optics
0104 chemical sciences
Electronic, Optical and Magnetic Materials
Deep eutectic solvent
chemistry.chemical_compound
food
chemistry
Materials Chemistry
medicine
Methanol
Physical and Theoretical Chemistry
Spectroscopy
Choline chloride
Subjects
Details
- ISSN :
- 01677322
- Volume :
- 260
- Database :
- OpenAIRE
- Journal :
- Journal of Molecular Liquids
- Accession number :
- edsair.doi...........43184d8d77d6b2a8cc207d3d0d06ed90