This paper introduces the use of brewery’s leftover as a substrate ingredient for Pleurotus ostreatus fruiting body cultivation and enzyme production. Substrates containing various proportions of fresh spent brewery grains, wheat bran, beech sawdust and CaCO3 were used to determine P. ostreatus mycelium growth rate, enzyme activity and the biological efficiency of acquired fruiting bodies to find the optimal substrate composition.
COBISS.SI-ID: 30014981
An aggregated MINLP model was developed for optimization of biogas process based on organic and animal wastes. Model selects between the mesophilic and thermophilic conditions of fermentation and the combination with the rendering plant. Several input substrates based on poultry or pig residues are possible. The selection between reconstruction of the existing pig farm and transformation into new chicken farm is included, as well as the selection of optimum water sources. The application is illustrated with an industrial case study.
COBISS.SI-ID: 12622870