different between betacyanin vs betalain

English

betacyanin (countable and uncountable, plural betacyanins)

Any of the betalain pigments which appear reddish to violet, found in beets, chard, and Amaranthus tricolor

Coined to describe the pigments as derivatives from betalamic acid, from Latin b?ta (“beet”), +? -in.

betalain (plural betalains)

A class of red and yellow indole-derived water-soluble pigments found in beets and other plants of the Caryophyllales and used commercially as coloring agents.
- 1992 — Frank B. Salisbury & Cleon W. Ross, Plant Physiology, 4th ed., p. 325.
  Neither the red betacyanins nor the other kind of betalain pigments, the yellow betaxanthins, are at all structurally related to the anthocyanins, and anthocyanins and betalains do not occur together in the same plant.
- 2004 — Luisa Tesoriere, Mario Allegra, Daniela Butera, & Maria A. Livrea. "Absorption, excretion, and distribution of dietary anioxidant betalains in LDLs: potential health effects of betalains in humans." American Journal of Clinical Nutrition 80: 941-945.
  Betalains, known for a long time as safe colorants for food or other industrial purposes, are phytochemicals that were recently classified as antioxidants.

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