High-throughput analysis of chemical components and theoretical ethanol yield of dedicated bioenergy sorghum using dual-optimized partial least squares calibration models

Table 2 Summary statistics of partial-optimized partial least squares models for chemical components and theoretical ethanol yield (TEY) of bioenergy sorghum

Parameter	Calibration				Cross validation		External validation
Parameter	Number	PCs	RMSEC	\(R_{C}^{2}\)	RMSECV	\(R_{CV}^{2}\)	Number	RMSEP	\(R_{V}^{2}\)	RPD	RER
Soluble sugar	108	7	2.27	0.95	2.66	0.93	37	2.57	0.91	3.39	16.42
Cellulose	108	9	0.93	0.95	1.26	0.91	37	1.18	0.91	3.46	16.30
Hemicellulose	108	7	0.75	0.95	0.85	0.94	37	0.64	0.95	4.33	25.15
Lignin	107	8	0.65	0.95	0.74	0.94	37	0.65	0.92	3.66	19.72
Ash	108	7	0.68	0.72	0.82	0.61	37	0.49	0.90	3.25	12.58
TEY	108	6	12.95	0.76	14.18	0.72	37	8.08	0.84	3.42	17.61

ISSN: 2731-3654