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Abstract: The author describes a method working on a microbiologic basis for determining automatically the sugar content of juices from the field of extraction, especially for the determination of pulp press water sugar content. This is based on conversion into acid of sugars present in samples by thermophilic micro-organisms in sample material and titration of produced acids with nutrient-containing lye. Analytical results are compared in two series of measurement with polarimetric determinations. The author shows that it is possible to apply the method to the analysis of various juices from extraction plants and gives indications concerning the practical use of the method within a regulating concept for beet extraction. |