Archive for February, 2015

Validation of electronic rapid test kits for quantitative salt iodine analysis

Project Completed

 
Significant global progress has been made in the past two decades to reduce iodine deficiency disorders through universal salt iodization programs. To ensure sustained success, careful monitoring of iodization levels at production, importation and end- consumption is critical. To simplify the monitoring process, several electronic rapid test kits for quantitative salt iodine content analysis, have been developed and are mostly commercially available. GroundWork is collaborating with the Micronutrient Initiative and other stakeholders on the comparative validation of a series of such devices. This validation will include both typical laboratory performance assessments and the user- and field-friendliness of devices, including challenges of procurement, training requirements, and waste disposal procedures. The project aims to provide device-guidance based on specified use for organizations and professional staff advancing universal salt iodization.

Coverage of fortified complementary foods in Côte d’Ivoire and India

Project Completed

 
GroundWork is providing technical support to GAIN to implement coverage surveys to assess the accessibility and use of fortified complementary foods (for infants and young children) in two locations: Abidjan, Côte d’Ivoire and Telangana, India. GroundWork’s support includes the development of scientific survey protocols, training of survey field staff, supervision of data collection, data analysis and reporting.

The Potential of the Common Bean (Phaseolus vulgaris) as a Vehicle for Iron Biofortification

Petry N, Boy E, Wirth JP, Hurrell RF

February 2015 – Nutrients

Common beans are a staple food and the major source of iron for populations in Eastern Africa and Latin America. Bean iron concentration is high and can be further increased by biofortification. A major constraint to bean iron biofortification is low iron absorption, attributed to inhibitory compounds such as phytic acid (PA) and polyphenol(s) (PP). We have evaluated the usefulness of the common bean as a vehicle for iron biofortification. High iron concentrations and wide genetic variability have enabled plant breeders to develop high iron bean varieties (up to 10 mg/100 g). PA concentrations in beans are high and tend to increase with iron biofortification. Short-term human isotope studies indicate that iron absorption from beans is low, PA is the major inhibitor, and bean PP play a minor role. Multiple composite meal studies indicate that decreasing the PA level in the biofortified varieties substantially increases iron absorption. Fractional iron absorption from composite meals was 4%–7% in iron deficient women; thus the consumption of 100 g biofortified beans/day would provide about 30%–50% of their daily iron requirement. Beans are a good vehicle for iron biofortification, and regular high consumption would be expected to help combat iron deficiency (ID).

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