In-pipe coconut water rheological characterization with ultrasonic waves
We propose in this paper to use a simple and robust experimental protocol based on longitudinal ultrasonic velocity measurement in order to evaluate the viscosity of coconut water in a cylindrical stainless-steel pipe. Seven samples with Soluble Solids Content (SSC) ranging from 6.7 to 44.2°Brix were studied using conventional Couette viscometry and high-frequency ultrasonic methods. Calibration laws linking the ultrasonic velocity measured at 5 MHz to the shear viscosity and to the SSC are proposed. These laws are in very good agreement with previous measurements carried out several years ago using a plane 25 MHz transducer directly introduced into the coconut water with SSC of up to 60°Brix.
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| Main Authors: | , , , , , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | Q02 - Traitement et conservation des produits alimentaires, U30 - Méthodes de recherche, |
| Online Access: | http://agritrop.cirad.fr/587736/ http://agritrop.cirad.fr/587736/1/Laux2018f_JFE.pdf |
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