Assessment of brewer grain utilization technological process and characteristics of obtained granulated product

Abstract

In the course of the research, brewery industry waste product – brewer’s grains – was used for producing a granulated product that has an improved nutritional value and better physical as well as mechanical properties. This does not allow efficient utilisation of this organic waste but to use it as feed irrespective of the season. The process of producing granules from brewer’s grains by adding an organic binding material is environmentally safe and allows for efficient utilisation of the main waste produced in brewery. This article presents the results of the research in the physical and mechanical properties of the granular product as well as short characteristics of the product user-attractive properties. The research has been performed with granules of different composition. It has been established that a higher content of glycerol used in granules as a binding material results in better strength properties and varied physical characteristics of the product.