A. Buccafuri

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There is a widespread interest in the commercial application of D-glucose-isomerase for the large-scale conversion of D-glucose into fructose-containing syrups[ ]. As such, there is a need for a rapid and reliable method for the routine analysis of glucose-isomerising activity in fermentation broths. The analytical methods currently in use include the(More)
A simple, rapid, and reproducible semiautomated method is described for routine analysis of riboflavin in premixes containing high levels of reduced iron. Reduced iron is separated from premixes by a magnet before digestion with sulfuric acid solution. The presence of ferrous sulfate, ferric pyrophosphate, and sodium ferric pyrophosphate in premixes did not(More)
An automated fluorometric procedures is described for assaying calcium pantothenate in multivitamin preparations. Sample extracts containing calcium pantothenate are treated on-line with a slurry of magnesium trisilicate which removes any interfering riboflavin that may be present. The filtrate is resampled, mixed on-line with a slurry of Dowex 50W-X4 (H+)(More)
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