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Table 3 PLS-R parameters for the tannin profile analyzed by a single model

From: Rapid tannin profiling of tree fodders using untargeted mid-infrared spectroscopy and partial least squares regression

  %CT (HBAI) mDP PC cis
LV 8
N Calibration: 89/validation: 30
Wavelengths (cm−1) 550–1800
RMSEC 0.65 0.80 6.71 8.03
R2C 0.91 0.59 0.94 0.94
RMSECV 0.76 0.96 8.14 9.62
RMSEP 0.81 0.85 7.23 8.82
R2P 0.90 0.68 0.94 0.92
RPD 3.21 1.69 4.07 3.39
RER 11.3 6.49 10.9 10.6
  1. %CT content of condensed tannins (%DM) measured by HCl-butanol-acetone-iron assay (HBAI), mDP mean degree of polymerisation, PC % procyanidin units (% condensed tannins), cis % cis units (% condensed tannins), LV latent variables, N number of samples, RMSEC/CV/P root-mean-square error or calibration/cross-validation/prediction, RPD ratio of prediction to deviation, RER range error ratio
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Plant Methods

ISSN: 1746-4811

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