Volume 8, Issue 4, July 2020, Page: 112-116
Analysis of Beetroot Bulbs (Beta vulgaris) from Selected Geographical Regions in Kenya: Essential Nutritional Elements Contents
Grace Ndunge, Institute of Nuclear Science and Technology, University of Nairobi, Nairobi, Kenya
David Njoroge Kariuki, Department of Chemistry, University of Nairobi, Nairobi, Kenya
Michael Josiah Mangala, Institute of Nuclear Science and Technology, University of Nairobi, Nairobi, Kenya
Michael James Gatari, Institute of Nuclear Science and Technology, University of Nairobi, Nairobi, Kenya
Received: Jul. 21, 2020;       Accepted: Aug. 4, 2020;       Published: Aug. 13, 2020
DOI: 10.11648/j.jfns.20200804.17      View  161      Downloads  84
Abstract
In Kenya, beetroot bulbs are occasionally used as a blend in fruit juices and salads, as a livestock feed and for treatment of diseases. Analysis of essential elements in beetroot bulbs was performed using Energy Dispersive X-ray fluorescence (EDXRF) in order to determine the nutritional content of the bulbs. The beetroot bulbs were sampled from five different geographical regions in Kenya; Karatina, Gilgil, Naivasha, Joska and Kisumu. The results of the concentrations of the essential elements had a range of: 10000 mg kg-1 to 61000 mg kg-1 for potassium, 500 mg kg-1 to 4500 mg kg-1 for calcium, 15.0 mg kg-1 to 230 mg kg-1 for manganese, 24.0 mg kg-1 to 770 mg kg-1 for iron and 16.0 mg kg-1 to 680 mg kg-1 for zinc. In general, the trend in the concentrations of the essential elements was K > Ca > Fe > Mn > Zn. Karatina samples registered the highest concentrations for all the elements of interest in this study. The results of analysis of variance (ANOVA) for all the five sampled regions show that there is a significant difference in the Ca, Fe and Mn concentration levels. Beetroots were found to contain sufficient amounts of the essential elements, therefore, are a suitable vegetable source of essential elements of K, Ca, Mn, Fe and Zn and can be used as an immune system booster. This study is supportive to the Government’s efforts of improving health care and in the fight against “hidden hunger-malnutrition” in the country.
Keywords
Kenyan Beetroot Bulbs (Beta vulgaris), Energy Dispersive X-ray Fluorescence, Essential Nutritional Element Content
To cite this article
Grace Ndunge, David Njoroge Kariuki, Michael Josiah Mangala, Michael James Gatari, Analysis of Beetroot Bulbs (Beta vulgaris) from Selected Geographical Regions in Kenya: Essential Nutritional Elements Contents, Journal of Food and Nutrition Sciences. Vol. 8, No. 4, 2020, pp. 112-116. doi: 10.11648/j.jfns.20200804.17
Copyright
Copyright © 2020 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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