Catechol melanin

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Chemical structure of indole-5,6-quinone

Catechol melanins are plant melanins.[1] They yield catechol on alkali fusion.[2] This type of substance can be found in fungi like Ustilago.[3] Indole-5,6-quinone is a chemical compound found in the oxidative browning reaction of fruits like bananas mediated by polyphenol oxidase from tyrosine and catecholamines leading to the formation of catechol melanins.[4]

References

  1. ↑ Melanins from DOPA-containing plants. R.S. Andrews,and J.B. Pridham, Phytochemistry, Volume 6, Issue 1, January 1967, Pages 13-18, doi:10.1016/0031-9422(67)85002-7
  2. ↑ Catechol melanin on science.jrank.org
  3. ↑ Ustilago melanin, a naturally occurring catechol melanin. M. Piattelli, E. Fattorusso, S. Magno and R. A. Nicolaus, Tetrahedron Letters, Volume 4, Issue 15, 1963, Pages 997-998, doi:10.1016/S0040-4039(01)90760-9
  4. ↑ Molecular Basis of Catecholamine Biosynthesis in Banana Fruit. Thesis submitted to the R.H. Smith Faculty of Agriculture, Food and Environment Quality Sciences of the Hebrew University of Jerusalem for the degree of Master of Science in Agriculture by Lydia Quansah, March 2009


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