Table 3. The optimum extraction conditions for soluble solids, ginsenosides and acidic polysaccharides of Taegeuk ginseng by the ridge analysis of their response surfaces

Responses		Extraction conditions				Estimated responses1)		Morphology
		Ethanol conc. (%)		Temperature (°C)
		Maximum	Minimum	Maximum	Minimum	Maximum	Minimum
Soluble solids (%, g/100 g)		0.22	72.18	68.96	64.06	57.81	32.99	Minimum point
Ginsenosides (mg/g)	Rg1	68.00	0.48	70.04	68.46	3.83	1.77	Maximum point
	Rb1	78.69	0.00	72.54	70.02	5.45	1.73	Maximum point
	Re	67.93	5.73	70.48	64.84	1.30	0.73	Maximum point
	Rb2	73.97	0.17	75.28	70.92	2.37	0.69	Maximum point
	Rb3	72.92	1.06	75.68	72.28	2.10	0.50	Maximum point
	Rh4	44.52	0.19	79.94	69.04	2.33	0.46	Saddle point
Total ginsenosides (mg/g)		66.41	0.00	77.03	69.86	17.24	6.11	Maximum point
Acidic polysaccharides (mg/g)		0.38	52.42	71.37	60.49	19.03	14.04	Maximum point

Contents of soluble solids, ginsenosides and acidic polysaccharides in Taegeuk ginseng.