Evaluation of Protein and Micronutrient Levels in Edible Cowpea (Vigna Unguiculata L. Walp.) Leaves and Seeds

Dakora, Felix D.; Belane, Alphonsus K.

doi:10.3389/fsufs.2019.00070

Cited by 51 publications

(42 citation statements)

References 24 publications

(39 reference statements)

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“… 51 and Gelin et al . 52 , which were on average 86.2 mg/kg and 86.9 mg/kg, respectively; whilst for V. unguiculata the contents tallied with Dakora and Belane’s study 53 where the obtained values ranged from 61 mg/kg to 67 mg/kg. Moreover, Yeken et al .…”

Section: Discussionsupporting

confidence: 70%

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Catarino

Brilhante

Essoh

et al. 2021

Sci Rep

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In sub-Saharan Africa, grain legumes (pulses) are essential food sources and play an important role in sustainable agriculture. Among the major pulse crops, the native cowpea (Vigna unguiculata) and introduced common bean (Phaseolus vulgaris) stand out. This paper has two main goals. First, we provide a comprehensive view of the available genetic resources of these genera in Africa, including data on germplasm collections and mapping biodiversity-rich areas. Second, we investigate patterns of physicochemical and cytogenomic variation across Africa to explore the geographical structuring of variation between native and introduced beans. Our results revealed that 73 Vigna and 5 Phaseolus species occur in tropical regions of Africa, with 8 countries accounting for more than 20 native species. Conversely, germplasm collections are poorly represented when compared to the worldwide collections. Regarding the nuclear DNA content, on average, V. unguiculata presents significantly higher values than P. vulgaris. Also, V. unguiculata is enriched in B, Mg, S, and Zn, while P. vulgaris has more Fe, Ca, and Cu. Overall, our study suggests that the physicochemical and cytogenomic diversity of native Vigna species is higher than previously thought, representing valuable food resources to reduce food insecurity and hunger, particularly of people living in African developing countries.

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Section: Discussionsupporting

confidence: 70%

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Catarino

Brilhante

Essoh

et al. 2021

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Higher mineral element concentrations in sole cropping is in line with the theory that non-legumes and legumes show capabilities of acquiring Fe and Zn in an environment with minimal competition from companion plants such as in sole stands relative to intercrops. Similar to other studies such as Dakora and Belane [49], our study found that there is more Fe concentration than Zn in crops, for example, cowpea and amaranth. The reasons for more iron than zinc on earth generally, is due to phytates bioavailability [50].…”

Section: Discussionsupporting

confidence: 91%

Nitrogen Fixation and Nutritional Yield of Cowpea-Amaranth Intercrop

et al. 2020

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Nutrient-poor soils coupled with micronutrient deficiency among many rural resource-poor communities remain a challenge in sub-Saharan Africa. Nutrient-poor soils can be managed through various soil amendment or fertilisation strategies. Micronutrients can be supplied through plants.The study was aimed at determining the symbiotic nitrogen fixation of cowpea as well as the contribution of inter-cropping under varying levels of nitrogen, phosphorus, and potassium (NPK) fertilisation. In addition, the amount of micronutrients supplied by cowpea and amaranth were determined. The experiment was laid out in a 2 × 4 factorial treatment structure in a completely randomised design, with inter-cropping (cowpea and amaranth) and fertiliser (control, 25%, 50%, and 100% of the recommended NPK levels) as treatment factors with four replications. Symbiotic N 2 fixation of cowpea decreased from 341-448 kgN.ha −1 to 77-91 kgN.ha −1 for the first year and 557-227 kgN.ha −1 to 92−164 kgN.ha −1 for the second year with fertilisation. The iron and zinc nutritional yield increased (61-210 g.ha −1 for first year and 304-867 g.ha −1 , for second year), proportional to fertiliser application to both crops. The research shows the benefits of leguminous crops in soil nutrient fertility and inorganic fertilisation with inter-cropping in managing micronutrient deficiency to meet the nutritional needs of rural communities.

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“…Legumes have long been known for their nutritional and health benefits through the provision of proteins and mineral elements in human diets (1)(2)(3). The nutritional benefits of grain legumes may be attributed to their phytochemical compositions that often confer biological activities of interest (4,5).…”

Section: Introductionmentioning

confidence: 99%

Metabolite Fingerprinting of Kersting's Groundnut [Macrotyloma geocarpum (Harms) Maréchal & Baudet] Seeds Using UPLC-qTOF-MS Reveals the Nutraceutical and Antioxidant Potentials of the Orphan Legume

2020

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The identification and subsequent quantification of phenolic compounds in plants is the first step toward harnessing their associated nutritional and health benefits. Due to their diverse phenolic compound compositions, grain legumes are known for their high nutritional and health values. The aim of this study was to assess the inter-variations in chemical composition, phytochemical content, and antioxidant capacity of seed extracts from eight Kersting's groundnut [Macrotyloma geocarpum (Harms) Marechal & Baudet] landraces. The chemical profiles were evaluated using UPLC-qTOF-MS. Total phenolics and flavonoids content were determined by the Folin-Ciocalteu and aluminum chloride methods, respectively. The antioxidant capacities in the forms of DPPH and ABTS were evaluated using spectrophotometric methods. Principal component analysis was used to define similarities/differences between the landraces. Based on untargeted metabolomics analysis, 57 metabolites were identified, with phenolics, triterpenes, fatty acids, and sphingolipids being the most predominant. The results showed that the black seeded KG1 (Puffeun) had the highest total phenolic (9.44 mg GAE/g) and flavonoid (3.01 mg QE/g) contents, as well as antioxidant capacity (9.17 μg/mL and 18.44 μg/mL based on DDPH and ABTS assays, respectively). The concentrations of ferulic acid hexoside, procyanidin B2, eryodictyiol-7-rutinoside and quercetin pentoside ranged from 51.78–441.31, 1.86–18.25, 3.26–13.95 to 5.44–63.85 μg/mg, respectively. This study presents a useful report on the phytochemical characterization of Kersting's groundnuts and shows that the grains can be used as a source of nutraceuticals for human consumption.

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Evaluation of Protein and Micronutrient Levels in Edible Cowpea (Vigna Unguiculata L. Walp.) Leaves and Seeds

Cited by 51 publications

References 24 publications

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Exploring physicochemical and cytogenomic diversity of African cowpea and common bean

Nitrogen Fixation and Nutritional Yield of Cowpea-Amaranth Intercrop

Metabolite Fingerprinting of Kersting's Groundnut [Macrotyloma geocarpum (Harms) Maréchal & Baudet] Seeds Using UPLC-qTOF-MS Reveals the Nutraceutical and Antioxidant Potentials of the Orphan Legume

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