International Journal of Applied Science and Technology

ISSN 2221-0997 (Print), 2221-1004 (Online) 10.30845/ijast

Effect of adulteration on honey properties
N.M. El-Bialee, M. A. Sorour

Honey samples belong to clover plants (Trifolium alexandrinanum) were obtained from private Beehives at Ghar-bia governorate in June 2010. Adulteration of honey was obtained by the addition of four different materials (starch, glucose, molasses, and distilled water) with different concentrations (1, 3, 6, 12, and 24%). Physico-chemical and rheological characteristics of pure and adulterated honey samples were investigated. The samples were found to differ from each other in refractive index (R.I), moisture content, total soluble solids (T.T.S), densi-ty, specific weight, capillary action, surface tension and pH. The rheological properties of pure and adulterated honey were analyzed using Brookfield viscometer over a range of 10-100 rpm and 25ÂșC, pure honey exhibited Newtonian behavior, while adulterated honey exhibited non-Newtonian pseudoplastic behavior.

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