Abstract:
Qualitative tests showed that the Tamarix indica tannin may be of the mixed type. Formaldehyde, iron alum and bromine water tests gave precipitate showing thereby that it belonged to condensed tannin while reactions with urea, iron alum + sodium acetate tests showed that it was a pyrogallol type. The bark contains about 24% soluble matter (on dry basis) of which the percentage of tannin is about 15 which is considered quite satisfactory from commercial point of view, because of the abundant availability of the raw materials. Examination of the results obtained showed that percentage of tannin as well as tannin-non-tannin ratio in Tamarix indica is quite high as compared to tannins of chestnutwood, oak bark and hemlock bark.
Page(s):
27-29
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Scientific and Industrial Research, Volume: 5, Issue: 1, Year: 1962