Authors: John Olayinka Atoyebi, Adegboyega Adeyemo, Timothy Oluwafemi Ajiboye, Oluwafeyidara Oyewole, Yetunde Abolarin, Suleiman Yusuf, David Edagbo.
Tree species Irvingia gabonensis and Irvingia wombolu are highly valuable and extensively utilised tropical African tree, sometimes known by the common names wild mango, African mango, bush mango, dika or ogbono. They bear edible mango-like fruits and their occurrences in sub – Saharan Africa are mostly in south-western Nigeria and southern Cameroon, and also in Côte d'Ivoire, Ghana, Togo and Benin.The fruits are sold, but by far the most important product is the kernels, which fetch a price several times higher than the fruits, hence the need to analyse the micronutrients content of our collections at the National Centre for Genetic Resources and Biotechnology (NACGRAB), Ibadan, Nigeria for better utilisation of its genetic resources. The results of the micronutrients analysis done using Atomic absorption spectrometer (AAS) revealed that Irvingia gabonensis has the highest mean Nitrogen value with (1.63 ± 0.01)%, while Irvingia wombolu has a mean Nitrogen value of (1.32 ± 0.07)%. Phosphorus mean values are Irvingia gabonensis (0.22 ± 0.005)% and Irvingia wombolu (0.26 ± 0.05)%. Others are Calcium, Irvingia gabonensis (0.32 ± 0.00)% and Irvingia wombolu (0.29 ± 0.00)% Magnesium, Irvingia gabonensis (0.09 ± 0.00)% and Irvingia wombolu (0.12 ± 0.00)%, Potassium, Irvingia gabonensis (1.24 ± 0.03)% and Irvingia wombolu (1.85 ± 0.005)%. Other mean values includes Sodium Irvingia gabonensis (0.18 ± 0.00)ppm and Irvingia wombolu (0.17 ± 0.00)ppm; Iron, Irvingia gabonensis (76.40 ± 1.50)ppm and Irvingia wombolu (134.0 ± 2.63)ppm; Manganese, Irvingia gabonensis (33.65 ± 0.82)ppm and Irvingia wombolu (121.15 ± 1.064)ppm; Copper, Irvingia gabonensis (4.92 ± 0.28)ppm and Irvingia wombolu (7.82 ± 0.29)ppm and Zinc, Irvingia gabonensis (16.24 ± 0.14)ppm and Irvingia wombolu (20.24 ± 0.19)ppm.
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