Diriba Bekere Kumssa

Diriba Bekere Kumssa
University of Nottingham | Notts · Nutrition Food Science and Dietetics

BSc, MSc, PhD

About

80
Publications
9,666
Reads
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687
Citations
Additional affiliations
February 2017 - present
University of Nottingham
Position
  • Research Associate
October 2013 - April 2017
University of Nottingham
Position
  • PhD Student
September 2008 - March 2010
University of Southampton
Position
  • PostDoc Position
Education
October 2013 - February 2017
University of Nottingham
Field of study
  • Biosciences
September 2008 - March 2010
Lund University
Field of study
  • Geographic Information Science and Earth Observation for Environmental Modelling and Management
September 2008 - March 2010
University of Twente
Field of study
  • Geographic Information Science and Earth Observation for Environmental Modelling and Management

Publications

Publications (80)
Article
Full-text available
lobally, more than 800 million people are undernourished while >2 billion people have one or more chronic micronutrient deficiencies (MNDs). More than 6% of global mortality and morbidity burdens are associated with undernourishment and MNDs. Here we show that, in 2011, 3.5 and 1.1 billion people were at risk of calcium (Ca) and zinc (Zn) deficienc...
Article
Full-text available
Magnesium (Mg) is an essential mineral micronutrient in humans. Risks of dietary Mg deficiency are affected by the quantity of Mg ingested and its bioavailability, which is influenced by the consumption of other nutrients and ‘anti-nutrients’. Here, we assess global dietary Mg supplies and risks of dietary deficiency, including the influence of oth...
Article
Full-text available
Dietary mineral deficiencies are widespread globally causing a large disease burden. However, estimates of deficiency prevalence are often only available at national scales or for small population sub-groups with limited relevance for policy makers. Methods This study combines food supply data from the Third Integrated Household Survey of Malawi w...
Article
Full-text available
Use of zinc (Zn) fertilisers may be cost-effective in increasing crop yields and in alleviating dietary Zn deficiency. However, Zn fertilisers are underutilised in many countries despite the widespread occurrence of Zn-deficient soils. Here, increased Zn fertiliser-use scenarios were simulated for wheat production in Punjab and Sindh Provinces, Pak...
Article
Full-text available
Background Moringa oleifera (MO) and M. stenopetala (MS) (family Moringaceae; order Brassicales) are multipurpose tree/shrub species. They thrive under marginal environmental conditions and produce nutritious edible parts. The aim of this study was to determine the mineral composition of different parts of MO and MS growing in their natural environ...
Article
Full-text available
Abstract Dietary zinc (Zn) deficiency is widespread globally, and in particular among people in sub-Saharan Africa (SSA). In Malawi, dietary sources of Zn are dominated by maize and spatially dependent variation in grain Zn concentration, which will affect dietary Zn intake, has been reported at distances of up to ~ 100 km. The aim of this study wa...
Article
Full-text available
Micronutrient deficiencies (MNDs) remain widespread among people in sub-Saharan Africa1–5, where access to sufficient food from plant and animal sources that is rich in micronutrients (vitamins and minerals) is limited due to socioeconomic and geographical reasons4–6. Here we report the micronutrient composition (calcium, iron, selenium and zinc) o...
Article
Full-text available
Background: Potassium (K) is an essential mineral and major intracellular electrolyte involved in the regulation of blood pressure, muscle contraction and nerve transmission in humans. Major dietary sources of K include fruits and vegetables, starchy roots and tubers, and whole grains. The aim of this study was to assess and report: (i) the suffic...
Poster
Full-text available
If you would like to contribute to the special issue of Animals, "Minerals in Animal Production" (https://mdpi.com/si/82187), please feel free to do so. We accept original research articles, reviews, and short communications including but not limited to the following themes: • Mineral nutrition of animals under intensive farming systems (aquacultur...
Article
Full-text available
Aim Magnesium (Mg) deficiency (known as grass tetany) is a serious metabolic disorder that affects grazing ruminants. We tested whether Mg-fertiliser can increase Mg concentration of Italian ryegrasses (Lolium multiflorum L.) including a cultivar (cv. Bb2067; ‘Magnet’), bred to accumulate larger concentrations of Mg. Methods Under controlled envir...
Article
Full-text available
AimThe World Health Organisation (WHO) magnesium (Mg) estimated average requirement (EAR) is not adjusted for rise in human body weight (BW) and neglects body Mg stores depletion. Cereal grain food processing results in Mg loss and reduces dietary Mg intake which mainly originates from cereals. Here we reassess human dietary Mg deficiency risk cons...
Article
Full-text available
Grain and soil were sampled across a large part of Amhara, Ethiopia in a study motivated by prior evidence of selenium (Se) deficiency in the Region's population. The grain samples (teff, Eragrostis tef, and wheat, Triticum aestivum) were analysed for concentration of Se and the soils were analysed for various properties, including Se concentration...
Article
Full-text available
Selenium (Se) is an essential element for human health. However, our knowledge of the prevalence of Se deficiency is less than for other micronutrients of public health concern such as iodine, iron and zinc, especially in sub-Saharan Africa (SSA). Studies of food systems in SSA, in particular in Malawi, have revealed that human Se deficiency risks...
Article
Full-text available
Hypomagnesaemic tetany (HypoMgT) in ruminants is a physiological disorder caused by inadequate intake or impaired absorption of magnesium (Mg) in the gut. If it is not detected and treated in time, HypoMgT can cause the death of the affected animal. A semi-structured questionnaire survey was conducted from July 2016–2017 to assess farmers’ awarenes...
Article
Full-text available
Selenium (Se) is an essential human micronutrient. Deficiency of Se decreases the activity of selenoproteins and can compromise immune and thyroid function and cognitive development, and increase risks from non-communicable diseases. The prevalence of Se deficiency is unknown in many countries, especially in sub-Saharan Africa (SSA). Here we report...
Article
Full-text available
Selenium (Se) is an essential human micronutrient. Deficiency of Se decreases the activity of selenoproteins and can compromise immune and thyroid function and cognitive development, and increase risks from non-communicable diseases. The prevalence of Se deficiency is unknown in many countries, especially in sub-Saharan Africa (SSA). Here we report...
Article
Full-text available
Moringa oleifera (MO) and M. stenopetala (MS) are two commonly cultivated species of the Moringaceae family. Some households in southern Ethiopia (S. ETH) and Kenya (KEN) plant MS and MO, respectively. The edible parts of these species are rich in amino acids, vitamins and minerals, especially selenium. Despite their nutritional value, Moringa is s...
Data
Information sheet for participants. (PDF)
Data
Questionnaire used for the survey in Kenya. (PDF)
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Consent form provided to the respondents prior to interview. (PDF)
Data
Questionnaire used for the survey in southern Ethiopia. (PDF)
Article
The quantity, quality and variety of food ingested by humans largely determines the intake of the essential mineral micronutrients required for normal human physiological functioning, growth and development. Inadequate dietary intake, low bioavailability, and failure of the human body to utilize ingested essential minerals lead to mineral micronutr...
Data
Test of normality of the distribution of MO leaves elemental concentration by locality in Kenya. (PDF)
Data
Levene’s test of homogeneity of variances of MO leaves elemental concentration by localities in Kenya based on mean and median. D.f. 1 is the degree of freedom of the numerator, and d.f. 2 is the degree of freedom of the denominator. (PDF)
Data
Levene’s test of homogeneity of variances of MO immature pods elemental concentration by localities. (PDF)
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Levene’s test of homogeneity of variances of MO seeds elemental concentration by localities. (PDF)
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Descriptive statistics for MS leaves elemental concentration (mg kg-1) by locality. (PDF)
Data
Descriptive statistics for MO seeds elemental concentration (mg kg-1) by locality. (PDF)
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Welch’s robust test of equality of mean elemental concentrations in MO and MS leaves. d.f. 1 (degrees of freedom of the numerator), d.f. 2 (degrees of freedom of the denominator), and the p (probability value). (PDF)
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Descriptive statistics on elemental concentration (mg kg-1) of plant Certified Reference Materials (CRM). (PDF)
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Test of normality of the distribution of MS leaves elemental concentration by locality. (PDF)
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Levene’s test of homogeneity of variances of MS leaves elemental concentration by localities based on mean and median. D.f. 1 is the degree of freedom of the numerator, and d.f. 2 is the degree of freedom of the denominator. (PDF)
Data
Descriptive statistics for MO flowers elemental concentration (mg kg-1) by locality. (PDF)
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Spearman’s rank correlation (N = 32, d.f. = 30) between the elemental concentration of MS leaves and soil properties. (PDF)
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Welch’s robust test of equality of mean elemental concentrations in MO leaves across localities in Kenya. d.f. 1 (degrees of freedom of the numerator), d.f. 2 (degrees of freedom of the denominator), and the p probability value. (PDF)
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Welch’s robust tests of equality of mean soil elemental concentrations across localities. d.f. 1 (degrees of freedom of the numerator), d.f. 2 (degrees of freedom of the denominator), and the p (probability value). (PDF)
Data
Correlation between the elemental composition of MO and brassica (BO) leaves. ** Correlation is significant at the 0.05 level (2-tailed). N = 3. (PDF)
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Number of Moringa edible part samples collected from Ethiopia and Kenya by locality and species. MO, M. oleifera, MS, M. stenopetala. (PDF)
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Number of soil samples (n) collected from the different localities in Ethiopia and Kenya. (PDF)
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Descriptive statistics of MO leaves elemental concentration (mg kg-1) by locality. (PDF)
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Descriptive statistics for MO immature pods elemental concentration (mg kg-1) by locality. (PDF)
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Descriptive statistics for soil elemental concentration (mg kg-1) and pH by locality. (PDF)
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The t probabilities for the Spearman’s rank correlation between the elemental concentration of MO leaves and soil properties. Significant correlations are in bold. (PDF)
Data
Welch’s robust test of equality of mean elemental concentrations in MS leaves across localities. d.f. 1 (degrees of freedom of the numerator), d.f. 2 (degrees of freedom of the denominator), and the p (probability value). (PDF)
Data
Welch’s robust test of equality of mean elemental concentrations in MO immature pods across localities. d.f. 1 (degrees of freedom of the numerator), d.f. 2 (degrees of freedom of the denominator), and the p (probability value). (PDF)
Data
Raw data on MO and MS edible parts elemental concentration (mg kg-1), and sample details. (PDF)
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Raw data on phosphate-extractable soil selenium (Se-P) concentration (mg kg-1) and sample details. (PDF)
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Descriptive statistics on elemental concentration (mg kg-1) of soil Certified Reference Materials (CRM) (2711A). (PDF)
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Shapiro-Wilk test of normality of the distribution of soil elemental concentration by locality. (PDF)
Data
Levene’s test of homogeneity of variances of soil elemental concentration based on mean and median. D.f. 1 is the degree of freedom of the numerator, and d.f. 2 is the degree of freedom of the denominator. (PDF)
Data
Test of normality of the distribution of MO immature pods elemental concentration by locality. (PDF)
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Test of normality of the distribution of MO seeds elemental concentration by locality. (PDF)
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Test of normality of the distribution of MO flowers elemental concentration by locality. (PDF)
Data
Levene’s test of homogeneity of variances of MO flowers elemental concentration by localities. (PDF)
Data
Spearman’s rank correlation (N = 56, d.f. = 54) between the elemental concentration of MO leaves and soil properties. (PDF)
Data
The t probabilities for the Spearman’s rank correlation between the elemental concentration of MS leaves and soil properties. Significant correlations are in bold. (PDF)
Data
Welch’s robust test of equality of mean elemental concentrations in MO seeds across localities. d.f. 1 (degrees of freedom of the numerator), d.f. 2 (degrees of freedom of the denominator), and the p (probability value). (PDF)
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Raw data on MO and MS leaves iodine concentration (mg kg-1) and sample details. (PDF)
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Raw data on elemental concentrations (mg kg-1) in various crops and sample details. ND = not detectable. (PDF)
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Raw data on soil elemental concentration (mg kg-1) and pH, and sample details. (PDF)
Data
Correlation between elemental concentrations of MO edible parts (flower, immature pod, leaf and seed). The figures below the yellow diagonal are correlation coefficients and those above the diagonal are p values. ** Correlation is significant at the 0.01 level (2-tailed). * Correlation is significant at the 0.05 level (2-tailed). N = 18 (PDF)
Data
Correlation between the elemental composition of MO and brassica (BO) leaves. ** Correlation is significant at the 0.05 level (2-tailed). N = 4. (PDF)
Data
Welch’s robust test of equality of mean elemental concentrations in MO flowers across localities. d.f. 1 (degrees of freedom of the numerator), d.f. 2 (degrees of freedom of the denominator), and the p (probability value). (PDF)
Data
Raw data on soil iodine concentration (mg kg-1) and sample details. (PDF)
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Correlation between the elemental composition of MO and amaranth leaves. * Correlation is significant at the 0.05 level (2-tailed). N = 6. (PDF)