Optimization of Extraction Process for Antidiabetic and Antioxidant Activities of Kursi Wufarikun Ziyabit Using Response Surface Methodology and Quantitative Analysis of Main Components

Table 1

Coded and uncoded levels of independent variables used in the RSM design.

Levels of coded variables	Independent variables
	Ethanol concentration,; % ()	Temperature,; °C (X2)	Sample-to-solvent ratio,; w/v ()	Extraction time,; h ()
−1	30	60	1 : 10	2
0	50	70	1 : 20	3
1	70	80	1 : 30	4