Genetic variability of bioactive compounds and selection for nutraceutical quality in kola [Cola nitida (Vent) Schott. and Endl.]

Nyadanu, Daniel; Lowor, S. T.; Akpertey, Abraham; Tchokponhoué, Dèdéou Apocalypse; Pobee, P.; Dogbatse, Jerome Agbesi; Okyere, Daniel; Amon-Armah, Frederick; Brako-Marfo, M.

doi:10.1371/journal.pone.0242972

Cited by 19 publications

(11 citation statements)

References 54 publications

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“…The calyxes of the white phenotype (CA) showed the presence of a maximum concentration of tritratable acidity. These results support the existing positive correlation between colour, phenolic composition, antioxidant activity and medicinal properties [ 35 ]. The redness of the calyxes (CS) can be considered as a visual indicator in content in phenolic compounds and potential bioactivity.…”

Section: Resultssupporting

confidence: 89%

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

et al. 2022

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This study consisted of the physicochemical, phytochemical and antioxidant characterisation of two varieties of Hibiscus sabdariffa, to evaluate the influence of genetic and environmental factors on these parameters leading to an objective and rigorous classification of our extracts. To this end, calyxes and seeds of the red and white phenotypes were collected in Bobo-Dioulasso, Dano and Nouna respectively in December 2019 and 2020. Principal component analysis showed that physico-chemical and biochemical parameters could potentially be used to discriminate varieties. The calyxes of the sabdariffa variety showed the best physicochemical profile (total phenolics, flavonoids, ascorbic acid), pigments (anthocyanins, chlorophyll) and antioxidant activity (free radical scavenging and SOD activity) while the seeds showed the best carbohydrate, lipid and peroxidation inhibition content. In view of these results, the red phenotype has an interesting nutritional and therapeutic potential. It could therefore be interesting candidate in the pharmaceutical and food industries.

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Section: Resultssupporting

confidence: 89%

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

et al. 2022

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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].…”

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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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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“…Ghanaians and other Africans predominantly use kola nut as a sign of friendship and peace and in cultural ceremonies, such as part of dowry in marriage ceremonies, child naming, installation of Chiefs, and funerals. e nut is also used as a masticatory stimulant [3,8,9]. e producer price of kola nut in Ghana increased steadily between the 1960s and 1990s, and this encouraged its cultivation by most farmers in the southern parts of the country leading to a dramatic increase in kola nut production [7].…”

Section: Introductionmentioning

confidence: 99%

“…However, there is an opportunity for Ghana to enhance its revenue from kola nut exports if production increases. e nut and its extracts have become popular in Europe and North America as a natural or alternative medicinal source and in the production of soft drinks, candies, beverages, animal feed formulation, liquid soap, and dyes [3,8,9]. In addition, according to Babatunde and Hamzat [15], the high nutritive quality of kola nut pod husk (as a byproduct) used for animal feed resulted in outstanding growth performance in broilers.…”

Section: Introductionmentioning

confidence: 99%

Supply-Side Practices and Constraints of the Kola Nut (Cola nitida (Vent) Schott. and Endl.) Value Chain in Ghana: A Descriptive Evidence

Amon-Armah

Oduro

Doe

et al. 2021

International Journal of Agronomy

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The use of kola nut, including natural or alternative medicinal sources, has inevitably created an increased global market demand in excess of its production and provides great prospects for the growth of the kola nut industry in producing countries like Ghana. Nonetheless, there is a great dearth of information on Ghana’s kola nut supply-side practices and constraints that can provide a basis for the development of the industry. This study fills the research gap by describing the practices and constraints of farmers, processors, and marketers of kola nut in Ghana. Using a survey methodology, results showed that nearly all (99.5%) farmers interviewed had not received any extension training on agronomic practices. Low market price of nuts (61.5%) and pests and diseases (60.4%) were the most reported constraints to kola nut production. Chiefs among motivating factors for cultivating kola nut were alternative livelihood support (58%). Some processors (28.6%) who rinsed nuts after depulping used a solution of Akate Master (bifenthrin) and others (51.0%) used fumigation tablets (aluminium phosphide) (91.0%) for storing the nuts. However, these chemicals may be dangerous to the health of consumers in the long run. The low selling price of kola nuts was perceived to be the most (74.8%) constraint to kola nut processing and marketing. Respondents noted that the red nuts were preferred for their durability during transportation and longer shelf life, while the white nuts were preferred for their taste. The results suggest the need for further agronomic, postharvest handling, preservation, and storage, as well as breeding research to provide recommendations to farmers and processors. To overcome some marketing challenges, there is a need for policy support to standardize pricing and grading systems for the mutual benefit of all the stakeholders.

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Genetic variability of bioactive compounds and selection for nutraceutical quality in kola [Cola nitida (Vent) Schott. and Endl.]

Cited by 19 publications

References 54 publications

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

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

Supply-Side Practices and Constraints of the Kola Nut (Cola nitida (Vent) Schott. and Endl.) Value Chain in Ghana: A Descriptive Evidence

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