The level of polyphenolic compound in six varieties of artichoke (Cynara scolymus L.), Imperial star, Madrigal, Violetto di chioggia, Nun 4011 AR, Tempo F1, Green glove, grown in Jeju island Korea was analyzed by HPLC. Freeze dried different part of artichoke samples (0.1g) were extracted with 2mL of 60% MeOH in water for 24hrs and filtered with a 0.2�m disc filter. Extracts from bracts, stem, and heart of artichoke were injected to Shimadzu UFLC-PDA connected with Kinetex C18 column (4.6?250 mm, 5 ?) and monitored at the wavelength of 325nm for chlorgenic acids or 280 nm for phenolic compounds. Neochlorgenic acid (3-CQA), chlorogenic acid (5-CQA), and cynarin (1,3-diCQA) were detected in all artichoke samples and 4,5-diCQA was contained in Madrigal and Nun 4011 AR varieties. Cynarin was a major constituent in bract followed 5-CQA and 3-CQA. The cynarin level in bracts was ranged from 1,278.1 (Tempo F1) to 4,651.4 (Nun 4011 AR) �g/g,  level in stems was ranged from 575.7 (Green glove) to 12,991.8 (Madrigal) �g/g, and level in hearts ranged from 0 (Nun 4011 AR, Tempo F1) to 4,407.1 (Violetto di Chioggia) �g/g. Stem part contained the highest level of cynarin and chlorogenic acids followed bracts and heart. Apigenin-7-glucoside and luteolin-7-glucoside were detected only in bracts and hearts part of some varieties

Polyphenolic compound level in six varieties of artichoke (<i>Cynara scolymus</i> L.) grown in Korea

248th National Meeting (2014)

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Polyphenolic compound level in six varieties of artichoke (Cynara scolymus L.) grown in Korea