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Colubrina elliptica (Sw.) Brizicky & W. L. Stern - syn.Colubrina reclinata (L’Hér.) Brongn.; Rhamnus elliptica Sw. - Rhamnaceae
mabi, bois mabi, soldierwood
Evergreen shrub or small tree, native to the Caribbean; bark orange-brown, fissured, splitting off in thin scales, inner bark light brown, bitter; leaves alternate, entire, elliptic-ovate, short-pointed at apex and rounded at base; flower sepals green, petals yellow.
The bark contains bitter triterpene saponins, called mabiosides A-C, 3-O-[α-JL-rhamnopyranosy]-(1→6)-β-D-glucopyranosyl-15-O-[β-D- glucopyranosyl] mabiogenin, 3-O-[α-L-rhamnopyranosy]-(1 [RIGHTWARDS ARROW] 6)-[β-D-glucopyranosyl-(1 [RIGHTWARDS ARROW] 2)]-β-D-glucopyranosyl}mabiogenin and 3-O-[α-L-rhamnopyranosyl-(1 [RIGHTWARDS ARROW] 6)-β-D-glucopyranosyl] mabiogenin
„The bark from both C.arborescens and the sister species C.elliptica are used to make the popular refreshing
beverage called mabi, or mauby, or mawbie. The unsweetened decoction of the bark also is taken as a bitter tonic and even to treat diabetes… As a fermented drink from C.elliptica bark, mabi is prepared by the joint actions of microorganisms occurring in the unrefined sugar used, and the inoculant or starter, called the „pie“. Preservation of the fermented mabi drink is achieved by pasteurization with added sodium benzoate, and this improves its attributes for commercial production… Important constituents of the bark of C.elliptica
are a mixture of bitter-tasting saponins (triterpenoid glycosides), as well as condensed tannins (0.15%) which contribute to the astringency (body and fullness of flavour) to the special taste of mabi drinks. Alkaloids (scutianine and its derivative compounds) occurring in the bark make only minor contributions.“
[Seaforth, C., Tikasingh, T., Gupta, M., St Rose, G., A study for the development of a handbook of selected Caribbean herbs for industry, 2008, 28-30] https://cgspace.cgiar.org/bitstream/handle/10568/63637/010905_Caribbean_Herbs_final_repor.pdf?sequence=1