Chromatograms of (A): blank injection, (B): standard phenolic and flavonoid compounds mixture (100 µg/mL), and (C): sample injection of fresh ginger extract using ethyl acetate solvent by SOX method using HPLC separation. Gallic acid, caffeic acid, naringin, rutin, and quercetin using HPLC. Peak identification based on the standard injection: Gallic acid (RT: 3.255 min); caffeic acid; (RT: 6.551 min); naringin (RT: 8.423 min); rutin (RT: 9.136 min); and quercetin (RT: 12.608 min).