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. 2012 Feb 10;17(2):1797-808.
doi: 10.3390/molecules17021797.

Phenolic compounds and antioxidant activities of Liriope muscari

Wen Jie Li  1 , Xian Long Cheng, Jing Liu, Rui Chao Lin, Gang Li Wang, Shu Shan Du, Zhi Long Liu
Affiliations

Phenolic compounds and antioxidant activities of Liriope muscari

Wen Jie Li et al. Molecules. .

Abstract

Five phenolic compounds, namely N-trans-coumaroyltyramine (1), N-trans-feruloyltyramine (2), N-trans-feruloyloctopamine (3), 5,7-dihydroxy-8-methoxyflavone (4) and (3S)3,5,4'-trihydroxy-7-methoxy-6-methylhomoisoflavanone (5), were isolated from the fibrous roots of Liriope muscari (Liliaceae). Compounds 2-5 were isolated for the first time from the Liriope genus. Their in vitro antioxidant activities were assessed by the DPPH and ABTS scavenging methods with microplate assays. The structure-activity relationships of compounds 1-3 are discussed.

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Figures

Figure 1
Figure 1
Structures of compounds isolated from L. muscari.
Figure 2
Figure 2
Key HMBC correlations of compound 5.
Figure 3
Figure 3
DPPHscavenging activity of compounds 1–5 and reference antioxidants.
Figure 4
Figure 4
ABTS scavenging activity of compounds 1–5 and reference antioxidants.
Figure 5
Figure 5
The proposed reaction mechanism between DPPH· and compounds 1–3.
See this image and copyright information in PMC

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