Analytical procedures for water-soluble vitamins in foods and dietary supplements: a review |
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Authors: | Christopher J Blake |
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Institution: | (1) Food Quality and Safety Department, Nestlé Research Centre, Vers Chez-les-Blanc 26, 1000 Lausanne, Switzerland |
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Abstract: | Water-soluble vitamins include the B-group vitamins and vitamin C. In order to correctly monitor water-soluble vitamin content
in fortified foods for compliance monitoring as well as to establish accurate data banks, an accurate and precise analytical
method is a prerequisite. For many years microbiological assays have been used for analysis of B vitamins. However they are
no longer considered to be the gold standard in vitamins analysis as many studies have shown up their deficiencies. This review
describes the current status of analytical methods, including microbiological assays and spectrophotometric, biosensor and
chromatographic techniques. In particular it describes the current status of the official methods and highlights some new
developments in chromatographic procedures and detection methods. An overview is made of multivitamin extractions and analyses
for foods and supplements. |
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Keywords: | Water-soluble vitamins Foods Dietary supplements Microbiological assay Chromatography Biosensor |
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