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Rheological Studies on Potato Starch Pastes at Low Concentrations. Part III: Simplified Measurements of Absolute Characteristics of Pasting
Author(s) -
Janas Piotr
Publication year - 1991
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.19910430503
Subject(s) - viscometer , rheology , rotor (electric) , starch , viscosity , dispersion (optics) , cylinder , materials science , angular velocity , work (physics) , mechanics , composite material , chemistry , physics , thermodynamics , mechanical engineering , optics , classical mechanics , engineering , organic chemistry
Results of measurements of pasting characteristics of starch which are carried out in the rotatory viscometer with co‐axial cylinders may be expressed in absolute viscosity units. The measurements can significantly be simplified if the rotor of the construction presented in this paper is applied. The rotor may play the role of a stirrer and the measurement cylinder at the same time. The work conditions (stirring ‐ measurement) may be alternated, without any additional manipulations in the measurement system, only by a change of a angular velocity of the rotor. The rotor of the construction presented here can be also useful in rheology measurements of dispersion which sedimentates.