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HPLC profile of polyphenols detected separated on Protect-1 C18 column and detected at 350 nm. 4: luteolin-rutinoside, 5: quercetin-glucoside, 6: quercetin-glycosides (the sum of these compounds is used in Table 3), 7: luteolin-glucoside, 8: myricetin, and 9: kaempferol-derivative.
