The influence of propolis on the rheological behaviour of pure honey

The present work refers to an investigation of the rheological behaviour of pure honey mixed with different percentages of propolis. Work curves, such as Frequency Sweep, Stress Sweep and Viscosity of samples were examined, allowing rheological evaluation of the mixtures. The experiments were accomplished in a HAAKE-RS50 Rotating Rheometer, with geometry Cone-Plate and Double Gap Cylinder sensor system. The viscosity of the pure honey is considerably reduced with the addition of extract of propolis. Furthermore, a pronounced viscoelastic behaviour is observed in the samples with extract of propolis.