On the molecular factors of sugar beet pulp polyglycans ensuring their water-holding capacity

The basic structural element of the cell walls of beet pulp is dietary fibers, therefore deep processing of this type of raw material is of considerable interest. One of the main physicochemical properties of dietary fibers used in food production is their water holding capacity. However, dietary fibers of beet pulp, as heterogeneous polymer components, are extremely labile to the conditions of their extraction. In this regard, it is relevant to identify technological factors and their rational sequence, in which the target properties will be expressed to the maximum extent. The authors developed an extensive algorithm for the sequential extraction of dietary fibers from beet pulp with selective processing by homofermental preparations, including various options for the preliminary preparation of raw materials. As a result, samples of beet fibers (mainly homogluacutronanes), corresponding to the key graph nodes of the developed algorithm, were identified. For each sample, the magnitude of water holding capacity was determined, as well as the Raman spectrum on an excitation wave of 785 nm with a spectrum scan duration of 3 s and 50 passes per spectrum...