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Antioxidants from the Brown Alga Dictyopteris undulata.

ABSTRACT: An investigation of anti-oxidative compounds from the brown alga Dictyopteris undulata has led to the isolation and identification of isozonarol, isozonarone, chromazonarol, zonaroic acid and isozonaroic acid. Their structures were identified by comparison of MS and NMR spectra. Full NMR assignment and absolute configuration of isozonaroic acid are described. Isozonarol showed the most potent 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity among the compounds isolated.

SUBMITTER: Kumagai M 

PROVIDER: S-EPMC6099395 | biostudies-literature | 2018 May

REPOSITORIES: biostudies-literature

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Antioxidants from the Brown Alga <i>Dictyopteris undulata</i>.

Kumagai Momochika M   Nishikawa Keisuke K   Matsuura Hiroshi H   Umezawa Taiki T   Matsuda Fuyuhiko F   Okino Tatsufumi T  

Molecules (Basel, Switzerland) 20180518 5

An investigation of anti-oxidative compounds from the brown alga <i>Dictyopteris undulata</i> has led to the isolation and identification of isozonarol, isozonarone, chromazonarol, zonaroic acid and isozonaroic acid. Their structures were identified by comparison of MS and NMR spectra. Full NMR assignment and absolute configuration of isozonaroic acid are described. Isozonarol showed the most potent 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity among the compounds isolated. ...[more]

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