Table 2 Ferula gummosa oleoresin yields corresponding to different DES solvents.

From: Efficient extraction of oleoresin from Ferula gummosa roots by natural deep eutectic solvent and its structure and chemical characterizations

HBA: HBD

Molar ratio

Oleoresin yield (%)

CL: Urea

2:1

13.62 ± 0.94

CL: Lactic acid

2:1

13.28 ± 0.78

CL: Formic acid

3:1

15.37 ± 1.16

CL: Acetic acid

2:1

13.83 ± 1.14

CL: Glycerol

2:1

11.61 ± 0.61

CL: Formamide

3:1

15.68 ± 1.25

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