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Table 7.3 Extracted polyphenols and corresponding sources as a function of deep eutectic solvent and technologies employed. For each target compound,
methodology for quantification and/or recovery is added
Sources
Target compounds
Deep eutectic solvent
Extraction
process
Quantification
method
Compounds’
recovery
from deep
eutectic
solvent
References
Lonicera
japonica
Caffeic acid; chlorogenic acid;
3,5-dicaffeoylquinic acid;
3,4-dicaffeoylquinic acid;
4,5-dicaffeoylquinic acid
Choline chloride/1,3butanediol 1:6
HRE
RP-HPLC (C18)
Macroporous
resin NKA-9
from 79.25%
to 86.01%
Peng et al.
(2016)
UAE
MAE
Cajanus cajan
leaves
Orientin; vitexin; luteolin; apigenin-6,8di-C-α-L-arabinoside; apigenin-8-C-α-Larabinoside luteolin; apigenin;
isorhamnetin; formononetin; cajanol;
pinostrobin chalcone; pinostrobin;
longistyline C; cajaninstilbene acid;
cajanuslactone
Choline chloride/maltose
1:2
MAE
UPLC-UV (C18)
Wei et al.
(2015a)
Equisetum
palustre
L.
Kaempferol-3-O-β-D-glucopyranoside-7O-β-D-glucopyranoside;
O-β-D-rutinoside-7-O-β-Dglucopyranoside;
luteolin-7-O-β-D-glucopyranoside;
quercetin-3-O-β-D-glucopyranoside;
apigenin-5-O-β-D-glucopyranoside;
genkwanin-5-O-β-D-glucopyranoside;
luteolin; apigenin; genkwanin
Choline chloride/betaine
hydrochloride/ethylene
glycol 1:1:2
Negative
pressure
cavitationassisted
extraction
(NPCE) UAE
HPLC-DAD
(Curosil-PFP
column)
Macroporous
resin
HPD-826
from 64.52%
to 89.25%
Qi et al.
(2015)
(continued)
7 Extraction of Plant and Algal Polyphenols Using Eutectic Solvents