article · Foods
Oilseeds offer vital micronutrients that help address malnutrition caused by dietary deficiencies. An investigation examined the mineral and anti-nutritional profiles of five niger seed, eight linseed, and ten sesame varieties. Twelve mineral elements were measured alongside the anti-nutritional factors phytate and tannin. The analysis revealed substantial nutritional diversity across the crops and among individual varieties. Niger seed was highest in phosphorus, while selenium was present in the smallest quantities. In linseed, potassium was measured at notable concentrations. Sesame varieties demonstrated particularly high levels of calcium. Anti-nutritional evaluations showed varied levels of phytate, with the highest average concentrations found in niger seed and the lowest in linseed. Tannin levels also showed wide variance across all three oilseed groups, confirming that specific varieties differ considerably in their nutritional and anti-nutritional makeup.
Micronutrient deficiencies pose a major challenge to human health, and oilseeds provide essential dietary minerals. Understanding the precise mineral and anti-nutritional profiles of different crop varieties allows agricultural and nutritional initiatives to select lines with higher beneficial nutrients and lower levels of compounds like phytates and tannins that impede mineral absorption.
This baseline profiling represents early-stage analytical research that could inform plant breeders and food processors seeking oilseed varieties with superior nutritional quality. By identifying specific varieties with high calcium, potassium, or phosphorus and lower anti-nutritional factors, breeders and food product developers could select optimal raw materials for fortified foods or dietary supplements, though further processing and bioavailability studies remain necessary before commercial deployment.
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Oilseeds are rich sources of micronutrients and contribute to combating malnutrition caused by micronutrient deficiency. The objective of this study was to investigate the mineral and anti-nutritional contents of different varieties of niger seed, linseed and sesame. Five niger seed, eight linseed and ten sesame varieties were used. Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) was used for mineral analysis and the standard method was adopted to estimate tannin and phytate. Twelve mineral elements; Ca, K, Mg, Na, P, B, Cu, Fe, Mn, S, Se and Zn were analyzed for each oilseed variety. In niger seed, phosphorous was the most abundant mineral element ranging from 661 to 867 mg/100 g and selenium was the least, ranging from 0.1 to 0.33 mg/100 g. Potassium was recorded in the range of 502 to 732 mg/100 g for linseed varieties. Calcium was the most common mineral element in sesame (1112 to 1787 mg/100 g). The average phytate contents of niger seed, linseed and sesame varieties were353 mg/100 g, 104 mg/100 g and 285 mg/100 g, respectively. Tannin ranged from 91 to 201 mg/100 g, 96 to 695 mg/100 g and 85 to 660 mg/100 g in niger seed, linseed and sesame, respectively. In conclusion, there is a significant variation among the varieties within each crop species as well as among the different oilseeds in terms of their mineral and anti-nutritional contents.
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DOI: 10.3390/foods6040027
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