Characteristic Anthocyanin Pattern from Onions and other Allium spp

Authors

  • TORGILS FOSSEN,

    1. Authors Fossen, Andersen, and Pedersen are with the Dept. of Chemistry, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway, Author Øvstedal is with the Botanical Institute, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway. Author Raknes is with Nycomed Imaging, P.O. Box 4220 Torshov, N-0401 Oslo, Norway. Address inquiries to Dr. Ø.M. Andersen.
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  • ØYVIND M. ANDERSEN,

    1. Authors Fossen, Andersen, and Pedersen are with the Dept. of Chemistry, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway, Author Øvstedal is with the Botanical Institute, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway. Author Raknes is with Nycomed Imaging, P.O. Box 4220 Torshov, N-0401 Oslo, Norway. Address inquiries to Dr. Ø.M. Andersen.
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  • DAG OLAV ØVSTEDAL,

    1. Authors Fossen, Andersen, and Pedersen are with the Dept. of Chemistry, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway, Author Øvstedal is with the Botanical Institute, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway. Author Raknes is with Nycomed Imaging, P.O. Box 4220 Torshov, N-0401 Oslo, Norway. Address inquiries to Dr. Ø.M. Andersen.
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  • ATLE T. PEDERSEN,

    1. Authors Fossen, Andersen, and Pedersen are with the Dept. of Chemistry, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway, Author Øvstedal is with the Botanical Institute, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway. Author Raknes is with Nycomed Imaging, P.O. Box 4220 Torshov, N-0401 Oslo, Norway. Address inquiries to Dr. Ø.M. Andersen.
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  • ÅSE RAKNES

    1. Authors Fossen, Andersen, and Pedersen are with the Dept. of Chemistry, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway, Author Øvstedal is with the Botanical Institute, Univ. of Bergen, Allégt. 41, N-5007 Bergen, Norway. Author Raknes is with Nycomed Imaging, P.O. Box 4220 Torshov, N-0401 Oslo, Norway. Address inquiries to Dr. Ø.M. Andersen.
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  • We thank Dr. H. Hoftun (NLH, As, Norway) for providing ‘Comred’. A.T.P. gratefully acknowledges The Research Council of Norway for a fellowship.

ABSTRACT

Three red onion (Allium cepa) cultivars, top onion (A. cepa var. vivi-parum), A. altaicum and chive (A. schoenoprasum) contained several or all of the following anthocyanins: 3-(6′-malonyl-3′-glucosylglucoside), 3-(3′,6′-dimalonylglucoside), 3-(6′-malonylglucoside), 3-(3′-malonyl-glucoside), 3-(3′-glucosylglucoside) and 3-glucoside of cyanidin. Trace amounts of two pelargonidin derivatives and the 3,5-diglucosides of cyanidin and peonidin were for the first time reported in red onion. Carbon NMR data showed that the sugars of the 3-(6′-malonyl-3′-glu-cosylglucoside), 3-(6′-malonylglucoside) and 3-glucoside of cyanidin were pyranoses. Substitution either by sugar or acid in the sugar 3-position of an anthocyanin has never been reported outside the genus Allium.

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