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. 2020 Apr 24;9(4):535. doi: 10.3390/foods9040535

Figure 4.

Figure 4

(a) Score plot of principal component analysis (PCA) (PC1 vs. PC3) for the discrimination of the Pleurotus species (Pos: P. ostreatus; Per: P. eryngii; Pnb: P. nebrodensis) on the basis of their recorded ATR-FTIR spectra, and (b) PCA loadings for the PC3 across which discrimination is evident.