Proteracacinidins are polymeric
condensed tannins composed of
mesquitol. This type of tannin can be found in ''Acacia caffra'' (''
Senegalia caffra
''Senegalia caffra'', also known as hook-thorn or ''Acacia caffra'', is a tree that occurs commonly in southern Africa. Though it is cultivated, it often occurs naturally in Gauteng suburban gardens, together with '' Acacia karroo'' and ''Acacia ...
'').
[A novel doubly-linked proteracacinidin analogue from Acacia caffra. E Malan, A Sireeparsad, JFW Burger and D Ferreira, Tetrahedron letters, 1994]
The oxydative depolymerisation of proteracacinidins yields the
anthocyanidin teracacinidin.
References
Condensed tannins
Senegalia
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