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2-Hydroxytorularhodin, a New Xanthophyll from the Red Yeast Sporobolomyces coprosmae

✍ Scribed by Roland W. S. Weber; Abderrahim Madhour; Heidrun Anke; Adele Mucci; Paolo Davoli

Book ID: 102253265
Publisher: John Wiley and Sons
Year: 2005
Tongue: German
Weight: 101 KB
Volume: 88
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.200590239

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✦ Synopsis

Abstract

A new hydroxylated carotenoic acid was isolated from the red yeast Sporobolomyces coprosmae and unambiguously identified as 2‐hydroxytorularhodin (1), i.e., (all‐E)‐3′,4′‐didehydro‐2‐hydroxy‐β,ψ‐caroten‐16′‐oic acid, by application of extensive 1D and 2D NMR techniques (gCOSY, gHSQC, gHMBC, DQS, gTOCSY, and ROESY). Hydroxylation of carotenoids at C(2) is uncommon in nature, very rare in fungi, and unprecedented for torularhodin.

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