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. 2021 Oct 19;10(10):2503. doi: 10.3390/foods10102503

Figure 3.

Figure 3

Principle component analysis (PCA, (a)) and hierarchical clustering analysis (HCA, (b)) of significant metabolites from pork loins (M. Longissimus lumborum) aged for 21 days with different aging treatments: wet-aging (WA), conventional dry-aging (DA), and UV-light dry-aging (UDA).