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Chemical components from Leptodermis glomerata and their antioxidant activity*(PDF)

Chinese Journal of Applied & Environmental Biology[ISSN:1006-687X/CN:51-1482/Q]

Issue:
2019 06
Page:
1-8
Research Field:
Articles
Publishing date:

Info

Title:
Chemical components from Leptodermis glomerata and their antioxidant activity*
Author(s):
WANG Dongmei1 2 ZHOU Min1 LIU Yan1 QI Huayi1 ZHANG Guolin1 & LUO Yinggang 1**
1Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
2University of Chinese Academy of Sciences, Beijing 100049, China
Keywords:
Leptodermis glomerata myricetin anthraquinone antioxidant
CLC:
-
PACS:
DOI:
10.19675/j.cnki.1006-687x.2019.03049
DocumentCode:

Abstract:
Fifteen natural products were isolated from the aqueous ethanol extract of Leptodermis glomerata by application of various chromatographic methods. Based on spectrum data, they were identified as myricetin ( 1), (2R,3R)-dihydromyricetin (2), quercetin (3), pinostrobin (4), 1,3-demethoxy-2-hydroxyanthraquinone (5), 2-methoxy-1,3-dehydroxyanthraquinone (6), 1,3,4-trimethoxy-2-hydroxyanthraquinone (7), 1,2,3,4-tetramethoxy anthraquinone (8), 1,2,3-trimethoxyanthraquinone (9), 5,7-dihydroxyprimary ketone (10), 3S-faramol (11), (2R, 4S)-catalponol (12), (2S,4S)-catalponol (13), 3β-acetyloleanolic acid ( 14), and oleanolic acid (15). (2R,3R)-Dihydromyricetin (2), pinostrobin (4), and 5,7-dihydroxyprimaryketone (10) exhibited significant radical scavenging effects from DPPH, ABTS, and NO activity assays. Compound 2 (1 mg/mL) showed 91.2% and 67.8% radical scavenging activities against DPPH and NO radicals, respectively. Compound 4 (2 mg/mL) displayed 102.8% DPPH radical scavenging activity. Compound 10 (1 mg/mL) was demonstrated to scavenge ABTS and NO radicals with 104.7% and 95.7% radical scavenging activity, respectively.

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Last Update: 2019-04-12