Abstract
A phytochemical survey of several plant species used in sub-Saharan Africa for the treatment of pottery, as well as some coating experiments carried out with purified extracts ofBridelia ferruginea stem bark, indicated that procyanidin fractions play a predominant role in the coating properties of the plant extracts. The analysis by high performance gel permeation chromatography of organic compounds isolated from the vessel walls suggested that products deriving from pyrolysis of procyanidins are detectable both in contemporary and older pottery, and their analysis could be useful for archaeological purposes.
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