@article{fdi:010063314, title = {{A}ssessment of a portable device to quantify vitamin {A} in fortified foods (flour, sugar, and milk) for quality control}, author = {{L}aillou, {A}. and {R}enaud, {C}{\'e}cile and {B}erger, {J}acques and {M}oench-{P}fanner, {R}. and {F}ontan, {L}aura and {A}vallone, {S}.}, editor = {}, language = {{ENG}}, abstract = {{B}ackground: {S}imple-to-use quantitative methods are needed to check the adequacy of vitamin {A} fortification levels. {O}bjective: {T}o assess the capacity of a portable fluorometer (i{C}heck {FLUORO}) and its test kit vials (i{E}x {M}ila) to quantify retinyl palmitate in fortified milks, flours (wheat, maize), and sugar. {M}ethods: {T}he portable fluorometer was assessed in a three-step procedure to determine its working range and linearity, intra-assay precision, and interperson precision. {M}easurements were compared with the results obtained by high-performance liquid chromatography ({HPLC}), commonly regarded as the standard method for vitamin {A} analysis. {R}esults: {T}he portable fluorometer (i{C}heck {FLUORO}) and its test kit vials (i{E}x {M}ila) precisely determined the vitamin {A} contents in fortified flours, sugar, and milks. {I}ts 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 {W}orld {H}ealth {O}rganization recommendations for food fortification in least developed countries. {T}he limits of detection are higher than those of {HPLC} but are all satisfactory (< 1.46 mg {RE} kg–1). {T}he coefficients of variation within and between observers were satisfactory, especially for sugar and milk. {C}onclusions: {T}he 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.}, keywords = {{FORTIFICATION} {ALIMENTAIRE} ; {VITAMINE} ; {COMPLEMENT} {ALIMENTAIRE} ; {LAIT} ; {FARINE} ; {SUCRE} ; {QUALITE} ; {APPAREIL} {DE} {MESURE} ; {CHROMATOGRAPHIE} {EN} {PHASE} {LIQUIDE} ; {ETUDE} {COMPARATIVE} ; {VITAMINE} {A} ; {FLUORIMETRIE} ; {TIERS} {MONDE} ; {ZONE} {TROPICALE}}, booktitle = {}, journal = {{F}ood and {N}utrition {B}ulletin}, volume = {35}, numero = {4}, pages = {449--457}, ISSN = {0379-5721}, year = {2014}, URL = {https://www.documentation.ird.fr/hor/fdi:010063314}, }