Photometric Iodine Value – Diagnostically Conclusive for Predicting Filterability?
Investigations were targeted at determining whether correlations might exist between filterability of beer and the level of α-glucans. It was found that the sum characteristic photometric iodine value correlates neither with filterability according to Raible (Fspec) or Esser (Gmax) nor with pressure increase in the commercial-scale kieselguhr cartridge filter. Filtration problems arising could be attributed to breakdown products of amylopectin and glycogen.
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