Mixed standards (a) and a typical HPLC chromatogram of phenolic
compounds extracted from tomato (O393ABAAAA) (b) at 320 nm, Peaks: 1 = Protocatechuic
acid; 2 = Chlorogenic acid; 3 = Gentistic acid; 4 = Caffeic acid; 5 = p-
Coumaric acid; 6 = Ferulic acid; 7 = Rutin; 8 = Naringenin, Inserts: left, enlarged
peaks of chlorogenic acid and gentistic acid at 360 nm; Right: UV spectra of uk1 (1)
and uk2 (2).