Antioxidative Activity and Chemical Constituents of Edible Terrestrial Alga Nostoc commune Vauch.

Masayuki NINOMIYA; Hitoshi SATOH; Yuji YAMAGUCHI; Hiroyuki TAKENAKA; Mamoru KOKETSU

doi:10.1271/bbb.110466

Organic Chemistry Regular Papers

Antioxidative Activity and Chemical Constituents of Edible Terrestrial Alga Nostoc commune Vauch.

Masayuki NINOMIYA, Hitoshi SATOH, Yuji YAMAGUCHI, Hiroyuki TAKENAKA, Mamoru KOKETSU

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Keywords: Nostoc commune Vauch., nostocionone, reduced scytonemin, antioxidative activity

JOURNAL FREE ACCESS

2011 Volume 75 Issue 11 Pages 2175-2177

DOI https://doi.org/10.1271/bbb.110466

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Abstract

The extract of terrestrial alga Nostoc commune Vauch. has high antioxidative activity. Our study on N. commune Vauch. resulted in the isolation of two β-ionone derivatives, nostocionone and 3-oxo-β-ionone, together with four indole alkaloids, scytonemin, reduced scytonemin, N-(p-coumaroyl)tryptamine, and N-acetyltryptamine. The structures of the isolated compounds were determined on the basis of 1D and 2D NMR and MS analyses. Among these isolates, nostocionone and reduced scytonemin demonstrated strong antioxidative activities which were assessed by using a β-carotene oxidation assay.

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