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Authors Grignon-Dubois, M; Rezzonico, B
Author Full Name Grignon-Dubois, Micheline; Rezzonico, Bernadette
Title First insight into the phenolic content of Spartina maritima: isolation, characterization and quantification of four C-glycosidic flavonoids
Source BOTANICA MARINA
Language English
Document Type Article
Author Keywords isoscoparin derivatives; isovitexin derivatives; NMR; qHPLC; Spartina maritima
Keywords Plus SALT-MARSH PLANTS; CHLORIDOIDEAE; POACEAE; IDENTIFICATION; ANTIOXIDANT; BIOSYNTHESIS; INHIBITION; ISOVITEXIN; CORDGRASS; MARINE
Abstract The phenolic content of Spartina maritima was investigated using chromatographic and spectroscopic techniques. Aqueous methanolic extracts were prepared from plant collected in different seasons in the Bay of Arcachon (French Atlantic coast). High performance liquid chromatography (HPLC) with diode array detection (DAD) coupled with mass spectrometry allowed identification of four major phenolics in the aerial tissue, all belonging to the C-glycosidic-flavonoid class. They were isolated from the crude extracts, and their structures were assigned to isovitexin, isoscoparin and their respective 2 ''-O-glucosides on the basis of NMR, mass and UV spectroscopies. The seasonal variation of the flavonoid content was quantified over the period January 2013 to May 2015. The total concentration found ranged from 1.73 to 4.60 mg g(-1) dry wt for isovitexin derivatives, and 0.88-2.66 mg g(-1) dry wt for isoscoparin derivatives. The phenolic content of the rhizomes was very low and mainly dominated by coumaric acid (0.03-0.08 mg g(-1)), along with ferulic acid (<= 0.06 mg g(-1)). The lack of significant concentrations of flavonoids in the rhizome contrasts with the aerial tissue. This work constitutes the first phenolic profiling of S. maritima and should provide a foundation for further studies, considering the reported biological activities of C-glycosidic flavonoids, and the lack of knowledge of the phenolic chemistry of the genus Spartina.
Author Address [Grignon-Dubois, Micheline; Rezzonico, Bernadette] Univ Bordeaux, EPOC, UMR 5805, F-33600 Pessac, France
Reprint Address Grignon-Dubois, M (corresponding author), Univ Bordeaux, EPOC, UMR 5805, F-33600 Pessac, France.
E-mail Address micheline.grignon@u-bordeaux.fr
Times Cited 1
Total Times Cited Count (WoS, BCI, and CSCD) 1
Publisher WALTER DE GRUYTER GMBH
Publisher City BERLIN
Publisher Address GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY
ISSN 0006-8055
29-Character Source Abbreviation BOT MAR
ISO Source Abbreviation Bot. Marina
Publication Date AUG
Year Published 2019
Volume 62
Issue 4
Beginning Page 379
Ending Page 389
Digital Object Identifier (DOI) 10.1515/bot-2018-0063
Page Count 11
Web of Science Category Plant Sciences; Marine & Freshwater Biology
Subject Category Plant Sciences; Marine & Freshwater Biology
Document Delivery Number IK3CS
Unique Article Identifier WOS:000476465200009
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