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. 2021 Jan 15;11:612299. doi: 10.3389/fpls.2020.612299

FIGURE 6.

FIGURE 6

HPLC profile of polyphenols from the leaves of Eclipta prostrata separated on C18 Protect-1, 250 × 4.6 mm eluated with a gradient of acetonitrile in 1% formic acid solution 4 (A) and 8 weeks (B) after inoculation. Peak identifications of (A): 1 = 5-O-caffeoylquinic acid; 2 = 4-O-caffeoylquinic acid; 3 = caffeic acid; 4 = 3,4-O-dicaffeoylquinic acid; 5 = 3,5-dicaffeoylquinic acid; 6 = luteolin-glucoside; 7 = luteolin-7-O-glucoside; 8 = ferulic acid; 9 = quercetin-3-arabinoside; 10 = demethyl wedelolactone; 11 = feruloylquinic acid; 12 = 4,5-O-dicaffeoylquinic acid; 13 = luteolin; 14 = wedelolactone. Peak identifications of (B): 1 = 5-O-caffeoylquinic acid; 2 = 4-O-caffeoylquinic acid; 3 = caffeic acid; 4 = 3,4-O-dicaffeoylquinic acid; 5 = 3,5-dicaffeoylquinic acid; 6 = luteolin-glucoside; 7 = luteolin-7-O-glucoside; 8 = ferulic acid; 9 = quercetin-3-arabinoside; 10 = demethyl wedelolactone; 11 = 4,5-dicaffeoylquinic acid; 12 = luteolin; 13 = wedelolactone.