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IN‐LINE CONSISTENCY MONITORING OF TOMATO BASED PRODUCTS USING VIBRATIONAL PROCESS VISCOMETRY
Author(s) -
CULLEN P. J.,
DUFFY A. P.,
O'DONNELL C. P.
Publication year - 2001
Publication title -
journal of food processing and preservation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.511
H-Index - 48
eISSN - 1745-4549
pISSN - 0145-8892
DOI - 10.1111/j.1745-4549.2001.tb00465.x
Subject(s) - viscometer , consistency (knowledge bases) , line (geometry) , process engineering , process (computing) , volumetric flow rate , production line , environmental science , biological system , computer science , viscosity , mathematics , materials science , mechanical engineering , engineering , mechanics , artificial intelligence , physics , biology , operating system , composite material , geometry
A vibrational process viscometer was evaluated as an in‐line consistency monitoring technique for tomato based products. This sensor was installed in both pilot and industry scale production processes. Accuracy of the sensor and its ability to distinguish between varying concentrations of non‐Newtonian fluids was evaluated with flowrate and temperature closely controlled. The sensor was shown to have the least inherent variability when compared to off‐line techniques. However it was found to be flowrate dependent for the tomato based products. Good correlations between the sensor and off‐line techniques were developed for the pilot scale trials. Plant trials revealed a number of problems in developing such correlations under industrial process conditions, however the instrument proved capable of tracking out of specification sauce as determined by the off‐line Brookfield viscometer. It was concluded that use of the sensor would result in increased measurement precision over the off‐line instruments coupled with the benefits of in‐line monitoring.