Polysaccharides from Trichosanthes Fructus via Ultrasound-Assisted Enzymatic Extraction Using Response Surface Methodology

Table 1

Independent variables and experimental design levels in the Box–Behnken design for determining the optimal UAEE condition of crude TFP extraction.

Independent variables	Coded symbols	Levels
			0	1
pH		4	4.5	5
Enzyme amount (u/g)		4000	5000	6000
Extraction temperature (°C)		40	45	50
Liquid-to-solid ratio (ml/g)		20	30	40