Fig. 8

The chromatograms of standard compounds and red ginger extracts in NADES (Choline Chloride: Acids) for (a) Chromatogram of the standards 6-, 8-, and 10-gingerol and 6-shogaol; (b-f) Chromatograms of Red Ginger extracted by (b) ChCl: CiA; (c) ChCl: MaA; (d) ChCl: LaA; (e) ChCl: TaA; and (f) ChCl:OxA.