Proteracacinidins are polymeric condensed tannins composed of mesquitol. This type of tannin can be found in hook-thorn tree (Senegalia caffra).[1][2][3]

The oxidative depolymerization of proteracacinidins yields the anthocyanidin teracacinidin.

References

  1. ↑ Bennie, Linette; Malan, Elfranco; Coetzee, Johan; Ferreira, Daneel (2000). "Structure and synthesis of ether-linked proteracacinidin and promelacacinidin proanthocyanidins from Acacia caffra". Phytochemistry. 53 (7): 785–793. doi:10.1016/s0031-9422(99)00618-4. PMID 10783984.
  2. ↑ Malan, Elfranco (1995). "A (4β → 5)-linked proteracacinidin dimer from the heartwood of Acacia caffra". Phytochemistry. 40 (5): 1519–1521. doi:10.1016/0031-9422(95)00440-I.
  3. ↑ Malan, Elfranco; Sireeparsad, Ashika; Burger, Johann F.W.; Ferreira, Daneel (1994). "A novel doubly-linked proteracacinidin analogue from Acacia caffra". Tetrahedron Letters. 35 (40): 7415–7416. doi:10.1016/0040-4039(94)85329-0.
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