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- Title
Ling Heather Honey Authentication by Thixotropic Parameters.
- Authors
Osés, Sandra; Ruiz, María; Pascual-Maté, Ana; Bocos, Andrés; Fernández-Muiño, Miguel; Sancho, María
- Abstract
This paper assesses the actual reliability of four rheological parameters to help describe honeys that exhibit non-Newtonian behavior, being the most representative of which, ling heather ( Calluna vulgaris (L.) Hull) honeys. Sampling included a representative number of unifloral ling heather honeys, non-unifloral honeys close to ling heather uniflorality, and other non-unifloral honeys containing ling heather. All experiments were performed at 25 °C and consisted on researching viscosity curves at different shear rates, as well as the time dependency of honey samples at a constant shear rate. Viscosity curves were correctly fitted by the Ostwald-de Waele model. Consistency coefficients ( k) and flow behavior indexes ( n) were calculated, and the Weltmann model was used to determine the stress decay behavior. The influence of honey moisture on k value was also researched. Hysteresis area and time-dependent thixotropic index B proved to be the most suitable parameters for a reliable ling heather honey authentication.
- Subjects
HONEY analysis; THIXOTROPIC gels; RHEOLOGY; SHEAR rate dependent viscosity; NON-Newtonian flow (Fluid dynamics)
- Publication
Food & Bioprocess Technology, 2017, Vol 10, Issue 5, p973
- ISSN
1935-5130
- Publication type
Article
- DOI
10.1007/s11947-017-1875-6