Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"biofortification"”.
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Introducing a pro-vitamin a rich staple crop: analysis of decision making along the orange fleshed sweetpotato value chain in Uganda
… the role of a marketing component in a food biofortification intervention. It is conceptualised within the value chain and adoption decision theory. Using both qualitative and quantitative methods of social investigation, this thesis: i) evaluates the factors that influence producers to grow …
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Development of a high-throughput phenotyping method for measuring sorghum carotenoids
… low concentrations of PVACs. Therefore, biofortification breeding efforts aim to increase PVACs to biologically relevant levels to reduce global vitamin A deficiency. In order to select and breed high carotenoid varieties, thousands of progeny in a breeding program must be phenotyped. …
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Exploring candidate genes and rhizosphere microbiome in relation to iron cycling in Andean potatoes
Fe biofortification of potato is a promising strategy to prevent Fe deficiency worldwide either through traditional breeding or biotechnological approaches. These approaches require the identification of candidate genes to uptake, transport and store Fe in potato tubers. We employed multiple …
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Metabolic engineering of the pterin branch of folate synthesis by over-expression of a GTP cyclohydrolase I in peanut
… practical in developing countries. Folate biofortification, increasing the natural folate level in foods by metabolic engineering, has been proposed as a sustainable alternative to food fortification with folic acid. To increase folate levels in peanut seed, GTP cyclohydrolase I from …
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Two Papers Evaluating the Economic Impact of Agricultural Innovation
… determine the economic impact of a staple crop biofortification project. The study finds that biofortified cassava in Nigeria and Kenya is a cost effective means of reducing health problems associated with vitamin A and iron deficiency. The second paper considers the significant livelihood …
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A Comparative Study of Iron and Zinc Concentration, Localization, Speciation and Bioavailability in Two Wheat Cultivars
… and are a potentially important target for biofortification strategies aimed at improving dietary Fe and Zn content and utilisation. The effectiveness of a crop in combating Fe and Zn deficiency is largely dependent on Fe and Zn speciation, as different forms vary in their bioavailability. …
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Investigation of nutrient solutions for the hydroponic growth of plants
… selenium-containing hydroponic nutrients for the biofortification of broccoli with selenium is presented. Laser-Ablation ICP Mass Spectrometry LA-ICP-MS has been used to monitor the accumulation and distribution of selenium in the broccoli plants. Imaging MALDI-MS has allowed the demonstration of …
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Interplay between selenium hyperaccumulator plants and their microbiome
… (bio-based environmental cleanup) or biofortification (nutritionally fortified crops). Plant-derived microbial isolates may also be applicable without their plant host, e.g. for cleanup of wastewaters. Culture-dependent studies have dominated the plant-microbe interactions research in …
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Identification of novel components of the zinc homeostasis mechanism in Arabidopsis thaliana
… of the Zn homeostasis mechanism and aid the biofortification research, a forward genetics approach was adopted to identify molecular components of the Zn homeostasis network in plants. Previous observations have indicated that irregularity in zinc homeostasis mechanism often leads to a …
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Three Essays on Adoption and Impact of Agricultural Technologies
This dissertation is composed of three essays examining adoption and impact of agricultural technologies. The first two papers estimate adoption and impact of iron-biofortified bean varieties in Rwanda. These varieties are bred to have high iron content and high yields to improve the health and …
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Genetic improvement of aphid resistance, protein, and elemental composition in soybean
… in that process which will ultimately result in biofortification of beneficial elements, and sequestration of heavy metals in crops.
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Enrichment of tomatoes and broccoli with specific bioactives for the reduction of prostate carcinogenesis
Epidemiological studies have linked high consumption of tomatoes and cruciferous vegetables to decreased risk of prostate cancer. Several bioactive components isolated from cruciferous vegetables and tomatoes exhibit anti-cancer properties. Previous studies have evaluated the cancer preventive …
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Uncovering the genetic basis of seed amino acid composition in arabidopsis using a multi-omics integrative approach
… a genetic basis. Thus, the first step in seed biofortification efforts must be to first increase the fundamental understanding of the genetic basis of both FAA and PBAA composition in the seed. Chapter One of this dissertation gives a more in-depth introduction that elaborates on amino acid …
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Behavioral Determinants of Biofortified Food Acceptance: The Case of Orange-fleshed Sweet Potato in Ghana
<p>Biofortified foods are being introduced in sub-Saharan Africa as an important strategy to help address micronutrient malnutrition. However, there has been little research on factors that could play decisive roles in their successful introduction. This paper investigates the determinants of …