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- Title
Antioxidant Flavonol Compounds from the Marine Cordgrass Spartina anglica.
- Authors
Xue SUN; Jun TANG; Wei HU; Nianjun XU
- Abstract
The marine cordgrass Spartina anglica has even been considered as an invasive plant in recent years. But their huge biomass was also useful bio-resource for various bioactive substances. In this paper, the ethanol extracts of S. anglica were screened for their antioxidant activities, and bioactivity-guided isolation by macroreticular resin column chromatography, polyamide column chromatography lead to a potent antioxidant fraction. Finally, with the help of HPLC and NMR techniques, three flavonol glycosides were identified as: 5,4'-dihydroxy-3'-methoxy-flavonol-3-0-glucosyl-(l→6)-glucosyl-7-0-rhamnoside (1), 5-hydroxy-3',4'-dimethoxy-flavonol-3-0-glucosyl-(l→-6)-glucosyl-7-0-rhamnoside (2), 5-hydroxy-3'-methoxy-flavonol-3-0-glucosyl-(l→6)-glucosyl-7-0-rhamnoside (3). Among them, compounds 1 and 3 showed potent antioxidant activities, and 2 and 3 were novel compounds. These compounds may contribute for the antioxidant activities of the Spartina extracts.
- Publication
Food Science & Technology Research, 2013, Vol 19, Issue 6, p1093
- ISSN
1344-6606
- Publication type
Article
- DOI
10.3136/fstr.19.1093