Mineral composition of LINN (tamarind) pulp and seeds from different agro-ecological zones of Uganda.

Mineral composition of dry LINN pulp and seeds was evaluated on samples collected from three different agro-ecological zones of Uganda (Lake Victoria Crescent, and Eastern and West Nile). The objective of the study was to evaluate the mineral composition of pulp and seed samples from across Uganda's different agro-ecological zones and land use types. Separately grounded samples of pulp and seeds were analyzed for Zn, Fe, Mg, P, Na, K, and Ca. The univariate analysis of variance in the General Linear Model was used to compare differences in mineral composition. Treatment means were separated using Least Significant Difference (LSD) in Post Hoc Tests. The results showed that there were significant differences ( ≤ 0.005) in mineral composition levels of pulp and seed samples between the different agro-ecological zones with the exception of P and Na (for pulp). The pulp and seeds samples from the Lake Victoria Crescent zone and wild land use type had generally higher mineral levels than samples from other agro-ecological zones and different land use types. As mineral composition levels were generally higher in the seed than the pulp samples, consumption of seeds should be promoted. There is also need to conserve individual species both on-farm and in the wild population, but mineral concentrations (both pulp and seeds) were higher in the samples from the wild population, making them good for human and animal diets.