Large frequency bands viscoelastic properties of honey

Non-Newtonian behaviour of heather honey

“…Temperature substantially affects the viscosity of honeys which decreases when temperature increases (Yoo, 2004;Juszczak and Fortuna, 2006;Yanniotis et al, 2006;Kang and Yoo, 2008;Gasparoux et al, 2008). In our study on heather honeys the values of yield stress, consistency coefficient and flow behaviour index were decreasing when the temperature was increasing (Table 1).…”

α-Relaxation in honey study versus moisture content: High frequency ultrasonic investigation around room temperature

“…Using the Time Temperature Superposition Principle, if now the experiment is done for a chosen temperature, the absorption peak and velocity increase are reached for a given frequency which leads to the calculation of a characteristic relaxation time of the material (Matheson, 1971;Ferry, 1961). For honey, we have recently demonstrated with ultrasonic shear waves that, for frequencies around 10 MHz, T a was close to room temperature (Gasparoux et al, 2008;Cereser Camara et al, 2010). We also observed that the sensitivity of a-transition towards moisture content was very high.…”

Propiedades fisicoquímicas de mieles monoflorales de encenillo de la zona altoandina en Boyacá, Colombia

“…49,52,56 Los resultados de los ensayos reológicos a una temperatura pueden superponerse con otros obtenidos en condiciones térmicas diferentes, posibilitando la construcción de curvas maestras, cuyos tiempos sobrepasan en gran medida la capacidad de un experimento. 69,72,76 Las constantes C1 y C2 de la expresión WLF en las muestras de Encenillo fueron 2.42 y 40.3, a 10 ºC respectivamente (Figura 5). Estos valores se relacionan por primera vez como de referencia de mieles monoflorales de la zona altoandina colombiana.…”