Fig. 4: Differentially component analysis between different milk species.

a PCA of five milk species; b OPLS-DA between cow’s milk and other milk species; c Permutations plot of OPLS-DA model; d OPLS-DA between cow’s milk and goat’s milk.
a PCA of five milk species; b OPLS-DA between cow’s milk and other milk species; c Permutations plot of OPLS-DA model; d OPLS-DA between cow’s milk and goat’s milk.