Vulgaxanthin

Vulgaxanthins are a group of betaxanthins, or the predominant yellow plant pigments found in red beets, among other plants like Mirabilis jalapa and swiss chard. They are antioxidant pigments, types I, II, III, IV, and V. Like all betaxanthins, they cannot be hydrolyzed by acid to aglycone without degradation. Water activity also affects stability of this antioxidant. It has been studied as a natural nutritional additive but instability remains a problem.[1]

Reactions
  • Vulgaxanthin-II + Ammonia + NADH = Vulgaxanthin-I + NAD+ + H2O
  • Vulgaxanthin-I + H2O = Vulgaxanthin-II + Ammonia
  • Vulgaxanthin-II + ATP + Ammonia = Vulgaxanthin-I + ADP + Orthophosphate
  • Vulgaxanthin-II + ATP + Ammonia = Vulgaxanthin-I + Diphosphate + 5'-AMP
  • Betalamic acid + L-Glutamine + ATP = Vulgaxanthin-I + ADP + Orthophosphate

[2]

gollark: I mean, what are they meant to do, sell it with "4 cores", one of which doesn't work, or throw away the slightly broken ones?
gollark: Intel and AMD and probably all or almost of the ARM manufacturers do that though.
gollark: I don't see how that's a problem. You shouldn't really expect to get an extra working core if it's disabled.
gollark: Broken components? Isn't that talking about it being possible to enable extra cores?
gollark: Anyway, I don't know what this has to do with their current products.

See also

References
  1. Effect of screening and subculture on the production of betaxanthins in Beta vulgaris L.
  2. "GREP v1.0.2". Archived from the original on 2011-07-21. Retrieved 2011-07-21.
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