Ndjiya et al
Greener Journal of Agricultural Sciences Vol. 2 (4), pp. 152-161, August 2012
ISSN: 2276-7770 © 2011 Greener Journals
of the pulps
Ndjiya Ngasop1, Haman-Djalo2, Nso Emmanuel1 and
2Department of Physics, the Faculty of Science (FS), Ngaoundéré, Cameroon.
Corresponding Author’s Email: ndjiyangasop @ yahoo.fr
Conventional juices settle
regardless of the production method used. In order to
achieve a complete homogenization, it often requires
chemical additives. In a world increasingly conscious of its
food consumption, we expect to explore a new way of
producing homogeneous juice, without additives, by using a
mechanical mixer and refine it later with one of the new
physical processes. Applied to guava pulp, the influence of
the water / guava ratio at constant volume is an important
factor through which several parameters were monitored. To
achieve this, the quantification of the mechanical power of
the mill allowed us to measure the actual energy required to
obtain a product having a particle size distribution
Thus the Reynolds number and the shear rate of the grinder with respect to the volume, the torque of the mill and the Reynolds number based on the rate were monitored. After having determined the volume range corresponding to the optimum grinding, particle size distribution at different positions of the mill has been mastered by the influence of dilution at constant volume.
Keywords: homogenization, guava, blender, mechanical power, shear rate.