Fig. 2. High-performance liquid chromatography profiles of phenolic compounds according to 70% ethyl alcohol extraction conditions of Korean Acanthopanax senticosus stem. EAS-1: Korean Acanthopanax senticosus stem collected on February 2nd, EAS-2: Korean Acanthopanax senticosus stem collected on May 1st, EAS-3: Korean Acanthopanax senticosus stem collected on July 2nd, EAS-4: Korean Acanthopanax senticosus stem collected on October 1st, EAS-5: Korean Acanthopanax senticosus stem collected on November 29th, 1: protocatechuic acid, 2: eleutheroside B, 3: scopolin, 4: chlorogenic acid, 5: caffeic acid, 6: eleutheroside B1, 7: sinapyl alcohol, 8: scopoletin, 9: eleutheroside E, 10: isofraxidin, 11: hyperoside, 12: rutin, 13: quercetin, 14: syringaresinol.
