Table 5. Coefficient of determination value of polynomial equations and analysis of variance for the dried Gugija

Responses	R²	Pr>F	Morphology	F-value
Responses	R²	Pr>F	Morphology	Ethanol concentration (%)	Extraction time (h)
Glycine	0.8672	0.0672	Saddle point	6.91^**1)	0.65
Serine	0.8390	0.0957	Maximum	6.60^**	0.17
Alanine	0.8314	0.1041	Saddle point	5.31^*	0.45
Threonine	0.6401	0.3772	Maximum	2.03	0.37
Proline	0.6897	0.2985	Saddle point	1.29	1.01
Valine	0.7639	0.1889	Saddle point	3.12	0.99
Methionine	0.9418	0.0140	Saddle point	18.15^***	1.86
Isoleucine	0.7708	0.1795	Saddle point	3.65	0.19
Leucine	0.7702	0.1802	Saddle point	3.65	0.47
Tyrosine	0.3778	0.7757	Saddle point	0.49	0.16
Tryptophan	0.6372	0.3819	Saddle point	1.93	0.14
Phenylalanine	0.5276	0.5590	Saddle point	1.02	0.61
Asparagine	0.8843	0.0519	Saddle point	8.57^**	0.51
Arginine	0.9074	0.0341	Saddle point	11.23^**	0.36
Histidine	0.9463	0.0119	Saddle point	20.30^***	2.31
Carnosine	0.9691	0.0040	Saddle point	35.52^***	2.85
Ornithine	0.9685	0.0042	Maximum	38.97^***	2.24
Aspartic acid	09052	0.0356	Saddle point	11.22^**	0.30
Glutamic acid	0.8070	0.1327	Maximum	4.92^*	0.00
Phosphoserine	0.9305	0.0197	Maximum	14.20^**	2.07
Hydroxyproline	0.8264	0.1097	Saddle point	2.76	1.88
γ-Amino-n-butyric acid	0.9810	0.0016	Maximum	67.99^***	10.17^**
Taurine	0.2608	0.9011	Saddle point	0.28	0.04
Phosphoethanolamine	0.8631	0.0711	Saddle point	6.94^**	0.15
Citrulline	0.5303	0.5548	Saddle point	0.60	0.89
Hydroxylysine	0.6182	0.4127	Minimum	1.59	0.79
Sarcocine	0.3285	0.8343	Maximum	0.50	0.46
Ethanolamine	0.3346	0.8275	Maximum	0.50	0.49
Total amino acids	0.8608	0.0733	Saddle point	7.21^**	0.16

¹⁾*,p<0.1; **,p<0.05; ***,p<0.01.