Journal
NATURAL PRODUCT RESEARCH
Volume 34, Issue 16, Pages 2276-2282Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14786419.2018.1534852
Keywords
Portulaca oleracea L.; lignans; antioxidant activity
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Funding
- National Natural Science Foundation of China [81573546]
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A new lignan, named oleralignan (1) and three known componds (+)-syringaresinol (2), (+)-lirioresinol A(3)and monomethyl 3,3 ',4,4 '-tetrahydroxy-delta-truxinate (4) were isolated from theP. oleraceafor the first time. The compound (1) were identified by 1D, 2D NMR spectroscopic methods and high resolution electrospray ionization time-of-flight mass spectrometry. In addition, it was found that the four lignans presented the scavenging activities in 1,1-diphenyl-2-picryl-hydrazyl (DPPH) radical quenching assay more than that of hydroxyl anisole (BHA). [GRAPHICS] .
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