Determination of Tannins of Three Common Acacia Species of Sudan

Table 1

Absorbance of solution of Acacia species parts before precipitation of tannins with hydrated-hide powder (at 725 nm).

Species	Plant part	Absorbance
		I	II	Average value
Acacia nilotica	Leaves	0.251	0.255	0.253
Acacia seyal	Leaves	0.128	0.126	0.127
Acacia nilotica	Bark	0.205	0.202	0.203
Acacia seyal	Bark	0.232	0.232	0.232
Acacia senegal	Bark	0.081	0.081	0.081
Acacia nilotica	Mature fruits	0.461	0.463	0.462
Acacia nilotica	Immature fruits	0.439	0.444	0.442