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Partial least square regression-discriminant analysis (PLS-DA) score plots of LV1 vs. LV2 when using corrected targeted LC-HRMS polyphenolic and curcuminoid profiles as sample chemical descriptors for (a) classification of Curcuma longa vs. Curcuma zedoaria turmeric samples, and (b) when also considering all the different Curcuma longa varieties. A total of 4 LVs were used to build the model.
