Laillou A., Renaud Cécile, Berger Jacques, Moench-Pfanner R., Fontan Laura, Avallone S. (2014). Assessment of a portable device to quantify vitamin A in fortified foods (flour, sugar, and milk) for quality control. Food and Nutrition Bulletin, 35 (4), p. 449-457. ISSN 0379-5721.
Titre du document
Assessment of a portable device to quantify vitamin A in fortified foods (flour, sugar, and milk) for quality control
Année de publication
2014
Auteurs
Laillou A., Renaud Cécile, Berger Jacques, Moench-Pfanner R., Fontan Laura, Avallone S.
Source
Food and Nutrition Bulletin, 2014,
35 (4), p. 449-457 ISSN 0379-5721
Background: Simple-to-use quantitative methods are needed to check the adequacy of vitamin A fortification levels. Objective: To assess the capacity of a portable fluorometer (iCheck FLUORO) and its test kit vials (iEx Mila) to quantify retinyl palmitate in fortified milks, flours (wheat, maize), and sugar. Methods: The portable fluorometer was assessed in a three-step procedure to determine its working range and linearity, intra-assay precision, and interperson precision. Measurements were compared with the results obtained by high-performance liquid chromatography (HPLC), commonly regarded as the standard method for vitamin A analysis. Results: The portable fluorometer (iCheck FLUORO) and its test kit vials (iEx Mila) precisely determined the vitamin A contents in fortified flours, sugar, and milks. Its working range was 1 to 10, 0.5 to 3.0, and 5 to 15 mg retinol equivalents (RE) kg–1 for flours (wheat and corn), milks, and sugar, respectively; these values are in accordance with the World Health Organization recommendations for food fortification in least developed countries. The limits of detection are higher than those of HPLC but are all satisfactory (< 1.46 mg RE kg–1). The coefficients of variation within and between observers were satisfactory, especially for sugar and milk. Conclusions: The linear relationship between the data from the portable fluorometer and the HPLC data confirms that the portable fluorometer provides a good determination of the vitamin A content of the fortified products in the tested range.
Plan de classement
Composition chimique, valeur nutritionnelle et toxicité [054ALIM02]
;
Pathologies nutritionnelles et surveillance nutritionnelle [054PHYMED02]
Descripteurs
FORTIFICATION ALIMENTAIRE ; VITAMINE ; COMPLEMENT ALIMENTAIRE ; LAIT ; FARINE ; SUCRE ; QUALITE ; APPAREIL DE MESURE ; CHROMATOGRAPHIE EN PHASE LIQUIDE ; ETUDE COMPARATIVE ; VITAMINE A ; FLUORIMETRIE
Description Géographique
TIERS MONDE ; ZONE TROPICALE
Localisation
Fonds IRD [F B010063314] ;
Montpellier (Centre IRD)
Identifiant IRD
fdi:010063314
