Fig. 1: REIMS lipidomic fingerprints of Alaskan salmon, Icelandic salmon, Norwegian salmon, and Scottish salmon reveal distinct differences amongst the classes.
From: Data fusion and multivariate analysis for food authenticity analysis
a PCA score plot amongst Alaskan salmon, Icelandic salmon, Norwegian salmon, and Scottish salmon: Intra-group differences were seen in the PCA model for the Iceland group (light blue dot). PC1 and PC3 are shown for clarity. PC1 contributed to 38.37% of the total explained variations, and PC3 has 15.26% contribution in the total explained variations. b PC1 and PC3 loading plot amongst 4 salmon groups. c PC2 loading plot amongst 4 salmon groups, which had 24.0% contribution in the total explained variations. d PCA score plot between Icelandic farmed salmon and Icelandic wild salmon. e PC1 and PC2 loading plot between Icelandic wild and farmed salmon.
