Resumo

ROSA, Meyliane Fabiana et al. Evaluation of the vitamin C content of solid preparations for soft drinks marketed in Campo Grande-MS. Rev. colomb. cienc. quim. farm. [online]. 2018, vol.47, n.3, pp.339-349. ISSN 0034-7418.  https://doi.org/10.15446/rcciquifa.v47n3.77369.

Natural juices have been largely replaced by solid refreshments (SR), which can result in nutrient loss of important components, such as ascorbic acid (AA). Thus, this study aimed to analyze the AA content, determine the titratable total acidity and pH in samples of pineapple-flavored SR marketed in the retail markets of Campo Grande-MS and, in addition, characterize AA used as Reference Chemical Substance. Ten samples of pineapple-flavored SR were analyzed using the modified Tillmans method, and all presented AA content above the minimum required in the recommended dietary dose, meeting the requirements of RDC 360/2003. However, 50% of the samples presented AA content above the maximum allowed limit of 20% for more or less as stated on the label. The study confirmed that the use of SR is a good dietary option to achieve the necessary daily dose of AA at a low cost.

Palavras-chave : Vitamin C; titrimetry; content determination; quality control.

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