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Abstract
Structural Characterisation of Wild Rubbers: Protein and
Ester Content
The latices of six species of wild rubber
trees from the Apocynaceae (1), Euphorbiaceae (3) and Moraceae
(2) families were characterised in terms of rubber-bound protein and
rubber-bound ester. FTIR and elemental analysis showed the presence of both
groups and the protein seems to differ in type depending on the botanical
family. The ester content was fairly constant in the same family but the
type of ester present needs a more detailed study.

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