Abstract
The suitability of using food colouring materials in enteral feeds as indicators of bacterial contamination was examined. Experiments using Triosorbon, Clinifeed ISO or Vivonex Standard plus amaranth, carmoisine, ponceau 4R, sunset yellow FCF, tartrazine or erythrosine demonstrated that although the change in appearance of coloured feed could be linked with the presence of high numbers of bacteria in the feed, the converse was not always true.
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