Extraction Of Tannin From Indigenous Wood Species

EXTRACTION OF TANNIN FROM INDIGENOUS WOOD SPECIESABSTRACTA general analysis of bark and leave of some indigenous wood species was carried out with the aim of establishing whether their percentage tannin content is high enough to be of commercial value.  The results obtained from the four species examined, show the percentage tannin to be 12.7%, 7.1%, 5.3% and 8.4% for the bark of four species pterocarpus osun, pterocoupus soyaixii, Burkea Africans and khaya senegacensis respectively.  Also from the leaves, the percentages obtained where 3.2, 2.8, 4.4 for pterocarpus osun, pterocarpus…