Variability in Nutritional Traits in Tetrapleura tetraptera (Schum and Thonn.)Taub. From Cross River State, Nigeria

Aniedi, Uyoh Edak; Ita, Effiom Eyo; Nwofia, G. E.

doi:10.3923/pjn.2013.701.707

Cited by 3 publications

(2 citation statements)

References 12 publications

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“…Biochemical and nutritional characterization were used for Cola nitida in Ghana for the selection of highly nutritious varieties [319] and in Nigeria to identify important micronutrient profiles in collections of Irvingia spp. [320], as well as for the selection of nutritionally superior trees of Tetrapleura tetraptera [321]. A wide variation in nutrients (moisture, ash, protein and β-carotene), minerals (zinc, potassium, phosphorus, sodium and copper) as well as bioactive compound such as plant sterols (γ-and β-sitosterol, ergosterol and campesterol), vitamin E, caffeine and squalene were observed among 11 accessions of D. edulis from southeastern Nigeria, suggesting a huge potential for genetic selection for nutritional, therapeutic and commercial exploitation at national and international levels [293].…”

Section: Nutritional Value Of Non-timber Forest Productsmentioning

confidence: 99%

“…edulis showing higher content in minerals such as calcium, potassium, zinc, iron, magnesium and manganese and therefore recommended as a potential source for essential nutrients and cosmetic products for Ivorian populations [322]. Based on nutritional traits, Tetrapleura tetraptera accessions were structured into four clusters, from which five accessions were identified using multiple traits performance as superiors and recommended for broadening the genetic base of the germplasm for the domestication and varietal development [321].…”

Section: Nutritional Value Of Non-timber Forest Productsmentioning

confidence: 99%

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The Future of Food: Domestication and Commercialization of Indigenous Food Crops in Africa over the Third Decade (2012–2021)

Leakey¹,

Avana

Awazi

et al. 2022

Sustainability

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This paper follows the transition from ethnobotany to a deeper scientific understanding of the food and medicinal properties of African agroforestry tree products as inputs into the start of domestication activities. It progresses on to the integration of these indigenous trees as new crops within diversified farming systems for multiple social, economic and environmental benefits. From its advent in the 1990s, the domestication of indigenous food and non-food tree species has become a global programme with a strong African focus. This review of progress in the third decade is restricted to progress in Africa, where multi-disciplinary research on over 59 species has been reported in 759 research papers in 318 science publications by scientists from over 833 research teams in 70 countries around the world (532 in Africa). The review spans 23 research topics presenting the recent research literature for tree species of high priority across the continent, as well as that in each of the four main ecological regions: the humid zone of West and Central Africa; the Sahel and North Africa; the East African highlands and drylands; and the woody savannas of Southern Africa. The main areas of growth have been the nutritional/medicinal value of non-timber forest products; the evaluation of the state of natural resources and their importance to local people; and the characterization of useful traits. However, the testing of putative cultivars; the implementation of participatory principles; the protection of traditional knowledge and intellectual property rights; and the selection of elite trees and ideotypes remain under-researched. To the probable detriment of the upscaling and impact in tropical agriculture, there has been, at the international level, a move away from decentralized, community-based tree domestication towards a laboratory-based, centralized approach. However, the rapid uptake of research by university departments and national agricultural research centres in Africa indicates a recognition of the importance of the indigenous crops for both the livelihoods of rural communities and the revitalization and enhanced outputs from agriculture in Africa, especially in West Africa. Thus, on a continental scale, there has been an uptake of research with policy relevance for the integration of indigenous trees in agroecosystems and their importance for the attainment of the UN Sustainable Development Goals. To progress this in the fourth decade, there will need to be a dedicated Centre in Africa to test and develop cultivars of indigenous crops. Finally, this review underpins a holistic approach to mitigating climate change, as well as other big global issues such as hunger, poverty and loss of wildlife habitat by reaping the benefits, or ‘profits’, from investment in the five forms of Capital, described as ‘land maxing’. However, policy and decision makers are not yet recognizing the potential for holistic and transformational adoption of these new indigenous food crop opportunities for African agriculture. Is ‘political will’ the missing sixth capital for sustainable development?

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Section: Nutritional Value Of Non-timber Forest Productsmentioning

confidence: 99%

Section: Nutritional Value Of Non-timber Forest Productsmentioning

confidence: 99%

The Future of Food: Domestication and Commercialization of Indigenous Food Crops in Africa over the Third Decade (2012–2021)

Leakey¹,

Avana

Awazi

et al. 2022

Sustainability

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Vitamin Analysis, Trace Elements Content, and Their Extractabilities in Tetrapleura tetraptera

Oteng

Otchere

Adusei

et al. 2020

Journal of Chemistry

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Tetrapleura tetraptera is widely cherished in African traditional homes because of its alleged therapeutic and nutritional properties. This present study aimed at determining the levels of vitamin A, C, E, and beta-carotene and trace element (Fe, Cu, Mn, Co, Se, and Zn) concentrations and their extractabilities in the pulp, seeds, and whole fruit (mixture of pulp and seeds) of T. tetraptera. The total trace element concentration of Fe, Cu, Co, Mn, and Zn and their extractabilities (%) were determined using flame atomic absorption spectrometer (FAAS), whereas UV-VIS spectrophotometer was used to determine selenium concentration. The trace element content (mg/kg) based on dry weight in the pulp, seeds, and whole fruit was Fe (162.00 ± 7.14, 115.00 ± 12.00, and 154.00 ± 25.20, respectively), Zn (31.60 ± 4.77, 43.40 ± 5.29, and 41.50 ± 8.97, respectively), Cu (16.10 ± 4.98, 11.90 ± 8.40, and 17.20 ± 14.50, respectively), Mn (55.30 ± 2.41, 156.00 ± 10.20, and 122.00 ± 5.29, respectively), Co (38.10 ± 6.40, 21.10 ± 7.15, and 44.00 ± 14.90, respectively), and Se (1.49 ± 0.17, 2.43 ± 0.28, and 2.97 ± 0.27 μg/g, respectively). The mineral extractabilities (%) in the pulp, seeds, and whole fruit of T. tetraptera were established to be in the order Co > Zn > Fe > Cu > Se > Mn. Also, the chromatographic method (HPLC) was used to evaluate vitamin E concentration, and vitamin C and concentration of beta-carotene were calculated from the obtained concentration of vitamin A using a conversion factor by the titrimetric method. From the results of vitamin analysis, a significant difference (p<0.05) was observed among the pulp, seeds, and whole fruit for vitamin C and E. However, no significant difference (p>0.05) was perceived among these plant parts for vitamin A and beta-carotene. This study has therefore revealed that the pulp, seeds, and whole fruit of T. tetraptera contain varying concentrations of vitamins and trace elements and has given many vital insights on which part of T. tetraptera to consume, as concentrations of these nutrients differ in the discrete parts of the fruit.

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Quantitative Analysis of Phytochemical Compounds in Barks and Leaves of Okoubaka Aubrevillei Collected from Iwo, Southwestern Nigeria

Akintola

Aderounmu

Abiola

et al. 2020

J. Bioresource Manage.

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Okoubaka aubrevillei is an indigenous and sacred tropical tree in Africa. It is rare with allelopathic properties and has relatively little information available in terms of what is responsible for its usage for medicinal and traditional usage. The phytochemical screening and quantitative analysis of the compounds in the barks and leaves of Okoubaka aubrevillei was determined to ascertain and establish its earlier claimed usage as traditional and modern medicine. The most important classes of secondary metabolites (phytochemical compounds) specifically alkaloids, flavonoids, tannins, saponins, anthraquinnes, mucilages, oses, holosides, coumarin and glycosides were detected in both, the leaves and barks of the tree. Quantitative determination of the phytochemical compounds found in the barks and leaves of the tree revealed that the leaves of O. aubreville tree had significantly higher values of alkaloids, flavonoids and glycosides than barks. Saponins and anthraquinnes were found to be significantly more in barks than in leaves. However, there was no significant difference found in the values of tannins, mucilages, oses and holosides and coumarin in barks and leaves of O. aubreville trees.

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Variability in Nutritional Traits in Tetrapleura tetraptera (Schum and Thonn.)Taub. From Cross River State, Nigeria

Cited by 3 publications

References 12 publications

The Future of Food: Domestication and Commercialization of Indigenous Food Crops in Africa over the Third Decade (2012–2021)

The Future of Food: Domestication and Commercialization of Indigenous Food Crops in Africa over the Third Decade (2012–2021)

Vitamin Analysis, Trace Elements Content, and Their Extractabilities in Tetrapleura tetraptera

Quantitative Analysis of Phytochemical Compounds in Barks and Leaves of Okoubaka Aubrevillei Collected from Iwo, Southwestern Nigeria

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