화학공학소재연구정보센터
Journal of Food Engineering, Vol.65, No.3, 459-463, 2004
Effect of temperature on dynamic rheology of Korean honeys
Dynamic rheological properties of Korean honeys of four different varieties (Poly-flower, Chestnut, Rape and Acacia) were evaluated at different temperatures (0, 5, 10, 20, and 30 degreesC). Honey samples displayed a liquid-like behavior, with loss modulus (G") much greater than storage modulus (G'), showing the high dependence on frequency (omega). The magnitudes of intercepts of G' and G" decreased with increase in temperature and water content. The time-temperature superposition (TTS) principle was applied to bring G' values for honeys at various temperatures together into a master curve. Over the temperature range of 0-30 degreesC, the apparent activation energy (DeltaH) decreased with increase in temperature and water content. (C) 2004 Elsevier Ltd. All rights reserved.