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| Hermosillo-Cereceres,MA; Sánchez,E; Muñoz-Márquez,E; Guevara-Aguilar,A; García-Bañuelos,M; Ojeda-Barrios,D. |
| Selenium (Se) is an essential element for many organisms, although in high concentrations it may become toxic, leading to the generation of reactive oxygen species (ROS). In this study, bean plants received different application rates of Se (0, 10, 20, 40, 80, and 160 μM) in the form of selenite and selenate to evaluate the activity of the detoxifying enzymes of H2O2. The results indicated that the activity of these enzymes in bean plants depended on the chemical form of Se: selenite at rates of 20 μM or greater diminished biomass and yield, increasing the activity of superoxide dismutase (SOD). Even when catalase (CAT) activity also increased, it appeared that it was efcient at detoxifying H2O2 in the presence of Se, given also the rise... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phaseolus vulgaris L; Green bean; Biofortification; Selenium. |
| Ano: 2014 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572014000200017 |
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| De Groote, Hugo; Tomlins, Keith; Haleegoah, Joyce; Awool, Manfred; Frimpong, Benedicta; Banerji, Abijit; Chowdury, Shyamal K.; Meenakshi, J.V.. |
| Deficiencies of micronutrients such as vitamin A are widespread, expecially in Africa. Biofortified crops such as maize, bred for high levels of provitamin A might offer a solution, but these crops are often bright orange, and African maize consumers prefer white. To estimate the consumers interest in orange biofortified maize, sensory evaluations were organized in rural Ghana with white, yellow and orange maize. The effect of information on willingness to pay for biofortification was estimated using a simulated radio message. Results indicate that color preferences are highly regional, wide variation exist within regions, and the provision of information is able to change these preferences. The color of biofortified maize should therefore not be seen as... |
| Tipo: Journal Article |
Palavras-chave: Maize; Biofortification; Consumers; Experimental auction; Sensory evaluation; Crop Production/Industries; Demand and Price Analysis. |
| Ano: 2010 |
URL: http://purl.umn.edu/96197 |
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| Gunaratna, Nilupa S.; De Groote, Hugo; McCabe, G.P.. |
| Biofortification, or the genetic improvement of the nutritional quality of food crops, is a promising strategy to combat undernutrition, particularly among the rural poor in developing countries. However, traditional methods of impact assessment do not apply to biofortified crops as little or no yield increases are expected. Significant progress has been made to develop maize varieties with improved protein quality, collectively known as quality protein maize (QPM). Evidence for the impact of QPM at the community level, as demonstrated by randomized, controlled studies, was evaluated using meta-analysis. A new and generalizable effect size was proposed to quantify the impact of QPM on a key outcome, child growth. The results indicated that consumption of... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Impact assessment; Biofortification; Meta-analysis; Crop Production/Industries; Food Security and Poverty. |
| Ano: 2008 |
URL: http://purl.umn.edu/44166 |
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| Qaim, Matin; Stein, Alexander J.; Meenakshi, J.V.. |
| Micronutrient malnutrition affects billions of people world-wide, causing serious health problems. Different micronutrient interventions are currently being used, but their overall coverage is relatively limited. Biofortification that is, breeding staple food crops for higher micronutrient contents has been proposed as a new agriculture-based approach. Yet, as biofortified crops are still under development, relatively little is known about their economic impacts and wider ramifications. In this article, the main factors that will influence their future success are discussed, and a methodology for economic impact assessment is presented, combining agricultural, nutrition, and health aspects. Ex ante studies from India and other developing countries... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Micronutrient malnutrition; Public health; Biofortification; Agricultural technology; Impact analysis; Developing countries; Food Consumption/Nutrition/Food Safety; I1; I3; O1; O3; Q1. |
| Ano: 2006 |
URL: http://purl.umn.edu/25584 |
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| Stein, Alexander J.; Qaim, Matin; Meenakshi, J.V.; Nestel, Penelope; Sachdev, H.P.S.; Bhutta, Zulfiqar A.. |
| Iron deficiency is a widespread nutritional problem in developing countries, causing impaired physical activity and cognitive development, as well as maternal mortality. Although food fortification and supplementation programmes have been effective in some countries, their overall success remains limited. Biofortification, that is, breeding crops for higher micronutrient content, is a relatively new approach. We propose a methodology for ex-ante impact assessment of iron biofortification, which builds on disability-adjusted life years (DALYs) and a large household data set. Our analysis of iron-rich rice and wheat in India indicates sizeable potential health benefits. The cost-effectiveness of iron biofortification compares favourably with other... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Biofortification; Plant breeding; Iron deficiency anaemia; Health benefits; DALYs; Cost-effectiveness; Cost-benefit analysis; India; Research and Development/Tech Change/Emerging Technologies; I120; I180; I310; O150; O220; O330; Q180.. |
| Ano: 2006 |
URL: http://purl.umn.edu/8536 |
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| Oliveira,Diêgo Sávio Vasconcelos de; Franco,Luis José Duarte; Menezes-Júnior,José Ângelo Nogueira de; Damasceno-Silva,Kaesel Jackson; Rocha,Maurisrael de Moura; Neves,Adão Cabral das; Sousa,Francisco Mauro de. |
| ABSTRACT Biofortification is a strategy that aims to improve the nutritional quality of foods through genetic breeding. Zinc is an important mineral for human health. It is used in various physiological processes such as immune function, antioxidant protection, growth and development. Therefore, zinc is one of the most studied minerals in the biofortification of grains in cowpea. The objective of this study was to evaluate the adaptability and stability of zinc density in the grain of 12 cowpea genotypes in four environments in the states of Piauí (PI) and Maranhão (MA), Brazil, by using the GGE-Biplot method. A randomized complete block design with four replications was used. Grain samples of each genotype were ground and the resulting flour was subjected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vigna unguiculata; Micronutrient; Biofortification; Genotype × environment interaction. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902017000500783 |
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| Moura-Silva,Aline Gomes; Aguiar,Alana das Chagas Ferreira; Jorge,Neuza; Agostini-Costa,Tânia da Silveira; Moura,Emanoel Gomes. |
| ABSTRACT The aim of this study was to test the hypothesis that the quality and quantity of biofortified cassava root in a humid tropical environment can be modified with the application of a combination of low- and high-quality residues of leguminous tree species. The experiment was designed as a 6 × 2 factorial (a combination of 4 legume species versus 2 levels of nitrogen) with 4 replications in a randomized block design and the following treatments: Gliricidia + Acacia, Gliricidia + Leucaena, Gliricidia + Clitoria, Leucaena + Acacia, Leucaena + Clitoria, and a control without legumes. We analyzed the shoot weight, number of roots/plant, root weight, root production, proximate composition, as well as the mineral, carotenoid, and pro-vitamin A contents.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biofortification; Food security; Green manure; Nutrients. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052017000300406 |
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| Lopes,Guilherme; Ávila,Fabrício William; Guilherme,Luiz Roberto Guimarães. |
| ABSTRACT Selenium (Se) is an important element that was discovered in 1817, and since the 1960s, it has been regarded as an essential micronutrient for both animals and humans, playing among other functions a relevant role in the antioxidant system of mammals. Inadequate blood Se levels in the human body is a well-known concern in many parts of the world. This malnutrition problem is often due to Se-poor diet, probably as a result of the low Se availability in soils where crops are growing. Nowadays, it is known that not only the total content, but also the inorganic and organic forms of Se contained in foods are important for human nutrition. However, paradoxically some regions of the world present high Se levels in soils causing several functional... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Essential micronutrient; Se adsorption; Se availability; Biofortification; Human nutrition.. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000600605 |
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