Extension of the Vane Pump-Grinder Technology to Manufacture Finely Dispersed Meat Batters

Journal of Food Science
Stefan B IrmscherJochen Weiss

Abstract

A vane pump-grinder system was extended to enable the manufacture of finely dispersed emulsion-type sausages by constructing and attaching a high-shear homogenizer at the outlet. We hypothesized that the dispersing capabilities of the extended system may be improved to the point of facilitating meat-fat emulsification due to an overall increased volumetric energy input EV . Coarsely ground raw material mixtures were processed to yield meat batters at varying volume flow rates (10 to 60 L/min) and rotational rotor speeds of the homogenizer nrotor (1000 to 3400 rpm). The normalized torques acting on pump, grinder, and homogenizer motors were recorded and unit power consumptions were calculated. The structure of the manufactured meat batters and sausages were analyzed via image analysis. Key physicochemical properties of unheated and heated batters, that is, texture, water-binding, color, and solubilized protein were determined. The mean diameter d10 of the visible lean meat particles varied between 352 and 406 μm whereas the mean volume-surface diameter d32 varied between 603 and 796 μm. The lightness L* ranged from 66.2 to 70.7 and correlated with the volumetric energy input and product structure. By contrast, varying process pa...Continue Reading

References

Oct 29, 2000·Journal of Agricultural and Food Chemistry·J Weiss, W Liao
Sep 18, 2001·Journal of Agricultural and Food Chemistry·J Weiss, D J McClements
Jul 14, 2010·Meat Science·Jochen WeissHanna Salminen

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