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. 2021 Jun 29;10(7):1507. doi: 10.3390/foods10071507

Figure 4.

Figure 4

Principal component analysis (PCA) of the 32 extracts from olive leaves, combined with in vitro activities and types of terpenoids (C10, C15, C20, and C30). (A) PC-1 and PC-2 biplot, (B) PC-2 and PC-3 biplot.