Optimization of Extraction Process of Methyl Eugenol and Asarinin in Asarum with Deep Eutectic Solvent Based on the Response Surface Methodology

Table 2

Different types of DESs.

No.	HBA	HBD	Molar ratio
1	Choline chloride	Maltose	1 : 1
2	Choline chloride	Malic acid	1 : 1
3	Choline chloride	Lactic acid	1 : 2
4	Choline chloride	Fructose	1 : 1
5	Choline chloride	Glycerol	1 : 2
6	Choline chloride	Propylene glycol	1 : 2
7	Choline chloride	Xylitol	1 : 1
8	Choline chloride	Urea	1 : 2
9	Choline chloride	Acetic acid	1 : 2
10	Choline chloride	Citric acid	1 : 2