Fig. 3.

OPLS-DA score (A, C, E, G, and I) and loading (B, D, F, H, and J) plot generated with ¹H NMR spectra of pulps and peels of Daebong persimmon (A and B), sweet persimmon (C and D), peach (E and F), apple (G and H), and grape (I and J) for comprehensive identification of metabolites that were different between pulps and peels. Ala, alanine; Arg, arginine; Asp, aspartic acid; C, catechin; CGA, chlorogenic acid; nCGA, neochlorogenic acid; EC, epicatechin; EGC, Epigallocatechin; FA, formic acid; Fru, fructose; GA, gallic acid; GABA, gamma-amynobutyric acid; Glc, glucose; Gln, glutamine; K, kaempferol; MA, malic acid; Phz, phloridzin; Pro, proline; Q, quercetin; QD, quercetin derivatives; QG, quercetin glucoside; p-Cou, p-coumaric acid; Rtn, rutin; Suc, sucrose; Thr, threonine; Trg, trigonelline. The upper sections in OPLS-DA loading plots represent relatively higher amounts of metabolites in the peels of each fruits, compared to their pulps (B, D, F, H, and J), whereas the lower sections indicate relatively lower amounts of metabolites in the peels.