Vioxanthin

Last updated
Vioxanthin
Vioxanthin.svg
Names
IUPAC name
(3R)-8-[(3R)-9,10-Dihydroxy-7-methoxy-3-methyl-1-oxo-3,4-dihydrobenzo[g]isochromen-8-yl]-9,10-dihydroxy-7-methoxy-3-methyl-3,4-dihydrobenzo[g]isochromen-1-one
Identifiers
3D model (JSmol)
PubChem CID
UNII
  • C[C@@H]1CC2=C(C(=C3C(=C2)C=C(C(=C3O)C4=C(C5=C(C6=C(C[C@H](OC6=O)C)C=C5C=C4OC)O)O)OC)O)C(=O)O1
Properties
C30H26O10
Molar mass 546.528 g·mol−1
AppearanceBrownish-yellow solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Vioxanthin is a mycotoxin that was first isolated from the pathogenic fungus Trichophyton violaceum and characterized in 1966. [1] It is a pigment with a brownish-yellow color. [1] It has since been found to be a constituent of a variety of other fungi including those in the genus Penicillium [2] and Aspergillus . [3] The detection of vioxanthin in food products has been used as evidence of contamination with these fungi. [4]

A laboratory synthesis of vioxanthin has been reported. [5]

References

  1. 1 2 Blank, F.; Ng, A. S.; Just, G. (1966). "Metabolites of Pathogenic Fungi: V. Isolation and Tentative Structures of Vioxanthin and Viopurpurin, Two Colored Metabolites of Trichophyton Violaceum" . Canadian Journal of Chemistry. 44 (23): 2873–2879. doi:10.1139/v66-427.
  2. ↑ Scudamore, K. A.; Clarke, J. H.; Hetmanski, M. T. (1993). "Isolation of Penicillium strains producing ochratoxin A, citrinin, xanthomegnin, viomellein and vioxanthin from stored cereal grains". Letters in Applied Microbiology. 17 (2): 82–87. doi:10.1111/j.1472-765X.1993.tb00377.x.
  3. ↑ Stack, Michael E.; Mislivec, Philip B.; Denizel, Turgut; Gibson, Regina; Pohland, Albert E. (1983). "Ochratoxins a and B, Xanthomegnin, Viomellein and Vioxanthin Production by Isolates of Aspergillus ochraceus from Green Coffee Beans". Journal of Food Protection. 46 (11): 965–968. doi:10.4315/0362-028X-46.11.965. PMID   30921851.
  4. ↑ Scudamore, Keith A.; Atkin, Pauline M.; Buckle, Anthony E. (1986). "Natural occurrence of the naphthoquinone mycotoxins, xanthomegnin, viomellein and vioxanthin in cereals and animal feldstuffs". Journal of Stored Products Research. 22 (2): 81–84. doi:10.1016/0022-474X(86)90023-8.
  5. ↑ Bode, Silke E.; Drochner, Daniel; Müller, Michael (2007). "Synthesis, Biosynthesis, and Absolute Configuration of Vioxanthin". Angewandte Chemie International Edition. 46 (31): 5916–5920. doi:10.1002/anie.200701014. PMID   17607794.
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