277
Sources
Target compounds
Deep eutectic solvent
Extraction
process
Quantification
method
Compounds’
recovery
from deep
eutectic
solvent
References
Lemon peels
Total polyphenols
Glycerol/choline
chloride 3:1
UAE
Folin-Ciocalteu
AlCl
3 method
Mouratoglou
et al. (2016)
Olive leaves
Onion solid
wastes
Red grape
pomace
Spent filter
coffee
Wheat bran
Extra virgin
olive oil
Total polyphenols; hydroxybenzoic acid;
protocatechuic acid; vanillic acid;
tyrosol; p-coumaric acid; caffeic acid;
apigenin; pinoresinol
Lactic acid/glucose 6:1 Vortexing
UV spectroscopy
Paradiso et al.
(2016a, b)
Folin-Ciocalteu
Trachycarpus
fortunei
bark
Protocatechuic acid; catechins;
epicatechin; caffeic acid
Choline chloride/formic
acid 1:1
HRE
HPLC-UV-MS
(C18)
SPE C
18 /C
8
Fu et al.
(2017c)
Ginkgo biloba
leaves
Total procyanidins; total flavonoids
Methyltrioctylammonium
chloride/capryl alcohol/
octylic acid 1:2:3 with
choline chloride/
levulinic acid 1:2 or
choline chloride/malonic
acid 1:2
Two-phase
system with:
Stirring
DMAC method
Cao et al.
(2018b)
UAE
Rutin method
(spectrophotometric
method with
reagent)
Olive oil
Ferulic acid; umbelliferone; boropinic
acid; 7-isopentenyloxycoumarin;
4′-geranyloxyferulic acid; auraptene
Phenylacetic acid/
betaine 2:1
Dispersive
liquid-liquid
microextraction
(DLLME)
UHPLC-PDA (C18)
Ferrone et al.
(2018)
Soy oil
Peanut oil
Corn oil
Sunflower oil
(continued)
7 Extraction of Plant and Algal Polyphenols Using Eutectic Solvents