Journal of Food Processing / 2014 / Article / Tab 3

Research Article

Effects of Processing (Boiling and Roasting) on the Nutritional and Antinutritional Properties of Bambara Groundnuts (Vigna subterranea [L.] Verdc.) from Southern Kaduna, Nigeria

Table 3

Mineral composition of raw and processed Bambara groundnuts (Vigna subterranea).

Element Boiled (mg/100 g)Roasted (mg/100 g)Raw (mg/100 g) aRecommended dietary allowance (RDA) in mg/day

Ca12.09 ± 1.54a19.63 ± 1.94b15.06 ± 1.32ab210–800*, 800**, 1200***
K186.17 ± 1.17a195.54 ± 3.48b187.07 ± 0.09a400–3000*, 4700
Cu 3.05 ± 0.07ab2.05 ± 0.64a4.61 ± 0.84b 0.2–0.44*, 0.7–0.89**, 0.9***
Fe1.58 ± 0.30a1.60 ± 0.32a1.69 ± 0.42a0.27–11*, 8–15**, 10***
Mn3.01 ± 0.61a4.08 ± 0.16ab5.65 ± 0.78b0.003–1.5*, 1.6–2.2**, 1.8–2.3***
Zn20.98 ± 1.07b10.27 ± 1.33a20.20 ± 0.92b2–5*, 11**, 15***
Mg65.30 ± 3.25a67.67 ± 2.36a63.51 ± 2.13a30–130*, 240–360**, 320–340***
P100.67 ± 3.30b132.25 ± 6.01c76.98 ± 4.28a100–500*, 1250**, 700***
Na23.27 ± 2.45a25.23 ± 1.09a21.03 ± 2.79a120*, 1500

Results are expressed as mean ± SD. Values with different superscripts across the row are significantly different from each other at .
aCulled from the United States Department of Agriculture (USDA) and may be accessed via http://www.nap.edu/.
*Infants; **children; ***adults.

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.