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Table 2 Statistics for optimized equations generated for prediction of cell wall features in sugarcane bagasse

From: Precise high-throughput online near-infrared spectroscopy assay to determine key cell wall features associated with sugarcane bagasse digestibility

 

Calibration

Cross-validation

Rank

N

SCM

Spectrum range (cm−1)

Mean

SD

RMSEC

R2

RMSECV

R2cv

RPD

Cellulose Crl

12

433

FD

11,972 – 11,185.1; 10,398.3 – 7251.1; 5677.4 – 4890.6

42.8

3.85

1.37

0.88

1.5

0.85

2.56

Lignin content (% dry mass)

 ASL

8

380

FD + MSC

11,972.5 – 10,398.8; 8825.1 – 8038.3; 6464.5 – 5677.7

1.73

2.44

0.1

0.83

0.1

0.8

2.24

 AIL

14

387

MMN

9612 – 8038.3; 6464.5 – 5677.7

14.8

2.95

0.55

0.89

0.7

0.8

2.26

 Total

14

408

SNV

11,185.1 – 10,398.3; 9611.5 – 7251.1

16.15

1.67

0.51

0.91

0.66

0.85

2.55

Lignin proportion (% cell wall)

 ASL

8

333

FD

11,972.5 – 11,185.7; 10,398.8 – 9612; 8825.1 – 8038.3; 6464.5 – 5677.7

3.67

2.4

0.24

0.83

0.25

0.8

2.25

 AIL

1

182

SNV

7251.4 – 5677.7

30.94

2.16

0.98

0.8

0.97

0.8

2.25

 Total

6

221

FD + SNV

5785.7 – 5446.3

35.1

2.32

1.32

0.81

1.35

0.8

2.24

  1. ASL acid-soluble lignin; AIL acid-insoluble lignin; N sample number; SCM scatter correction methods; SD standard deviation of reference value; RMSEC root mean square error of calibration; R2 determination coefficient; RMSECV root mean square err of cross-validation; R2cv determination coefficient of cross-validation; RPD ratio performance deviation; FD first derivative; SNV standard normal variate; MSC multiplicative scattering correction; MMN Min–Max normalization; FD + SNV a combination of FD and SNV; FD + MSC a combination of FD and MSC
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Biotechnology for Biofuels and Bioproducts

ISSN: 2731-3654

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