Department of Food and Nutrition, National Institute of Health Dr. Ricardo Jorge, I.P., Lisbon, Portugal.
Department of Food and Nutrition, National Institute of Health Dr. Ricardo Jorge, I.P., Lisbon, Portugal; REQUIMTE-LAQV/Faculdade de Farmácia da Universidade do Porto, Portugal.
Food Chem. 2018 Nov 30;267:83-90. doi: 10.1016/j.foodchem.2017.11.046. Epub 2017 Nov 14.
The validation of a rapid, precise (RSD < 4.6%), reliable and sensitive (LOD = 0.026 µg/mL) liquid chromatography method for vitamin C quantification in foods (infant formulae, n = 4; follow-on formulae, n = 3; processed cereal based-foods, n = 7; and baby foods, n = 10) for infants and young children is described. Vitamin C content ranged from 1.50 to 144 mg/100 g. A comparison between the declared values and the measured concentrations, as well as the accordance of these values with the tolerances, was performed. For 50% of the analysed foods, the measured vitamin C content was higher than the declared value. However, all the analysed foods were in compliance with EU legislation concerning the maximum limits of vitamin C added to foods. The results obtained will be very useful for analytical laboratory control, risk assessment, establishment of maximum limits, development and implementation of guidelines regarding nutrient recommendations and estimation of vitamin C intake among infants and young children.
描述了一种快速、精确（RSD<4.6%）、可靠和灵敏（LOD=0.026μg/mL）的液相色谱法，用于定量分析婴儿和幼儿食品中的维生素 C（婴儿配方奶粉，n=4；后续配方奶粉，n=3；加工谷物基食品，n=7；和婴儿食品，n=10）。维生素 C 含量范围为 1.50 至 144mg/100g。对声明值与测量浓度之间的差异进行了比较，以及这些值与公差的一致性。对于 50%的分析食品，测量的维生素 C 含量高于声明值。然而，所有分析的食品均符合欧盟有关向食品中添加维生素 C 的最大限量的法规。获得的结果对于分析实验室控制、风险评估、建立最大限量、制定和实施有关营养建议的准则以及估计婴儿和幼儿维生素 C 摄入量非常有用。
