Extraction and Characterization of Aucoumea klaineana Pierre (Okoume) Extractives

Engozogho Anris Starlin Peguy (1) , Arsène Bikoro Bi Athomo (1) , Marcia Vidal , Louis Denaud , Rodrigue Safoutchiama , Bertrand Charrier (1)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux

In order to promote convenient strategies for the utilization of wood wastes from aucoumea klaineana pierre (okoume) timber industry, various chemical analysis were carried out on samples from different origins. Total extractives content of the bark, sapwood and heartwood of okoume were evaluated. thermogravimetric analyses were performed and the stiasny number was calculated. it was found that the bark was richer in fatty acid of high molecular weight while the sapwood was rich in fatty acid of low molecular weight. the condensed tannins content varied according to the origin and the part of the tree. these new findings should be useful for green okoume based tannin adhesives.

Keywords: Extractibles; Fatty acids; Polyphenols; Stiasny number; Tannins; TGA; fatty acids; tannins; polyphenols; stiasny number

Domains: Polymers; Material chemistry; Theoretical and/or physical chemistry; Analytical chemistry

Engozogho Anris Starlin Peguy, Arsène Bikoro Bi Athomo, Marcia Vidal, Louis Denaud, Rodrigue Safoutchiama, et al.. Extraction and Characterization of Aucoumea klaineana Pierre (Okoume) Extractives. Journal of Renewable Materials, 2019, 7 (6), pp.517-522. ⟨10.32604/jrm.2019.04051⟩. ⟨hal-02430773⟩