Spermidine and Flavonoid Conjugates from Peanut ( Arachis hypogaea ) Flowers

National Peanut Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Dawson, Georgia 39842, USA.
Journal of Agricultural and Food Chemistry (Impact Factor: 2.91). 06/2008; 56(9):2960-9. DOI: 10.1021/jf703652a
Source: PubMed


A new spermidine triamide derivative has been isolated from peanut flowers and identified as N (1)-acetyl- N (5), N (10)-di- p-( EE)-coumaroylspermidine on the basis of detailed analysis of NMR, MS, and UV data. Two other spermidine conjugates, N (1), N (5), N (10)-tri- p-( EEE)-coumaroylspermidine and di- p-( EE)-coumaroylspermidine, as well as four flavonoid conjugates (quercetin-3-glucoside, quercetin-3-glucuronide, isorhamnetin-3-glucoside, and isorhamnetin-3-glucuronide) that have been previously reported in organs of other plants, have been found in this study in peanut ( Arachis hypogaea L.), a representative of the Leguminosae family, for the first time. The dynamics of photoisomerization in the spermidine conjugates have been investigated.

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