Summary. Cheese yield is defined as the amount of cheese, expressed in kilograms, obtained from 100 kg of milk. It is a very important parameter: the higher the recovered percentage of solids, the greater is the amount of cheese obtained and therefore gains in economic terms. The definition of cheese yield, or how to express yield, is important in two main applications: 1. Economic control of cheesemaking; 2. Expressing the results of cheesemaking experiments. Cheese yield is affected by many factors including milk composition, amount and genetic variants of casein, milk quality, somatic cell count (SCC) in milk, milk pasteurization, coagulant type, vat design, curd firmness at cutting, and manufacturing parameters.
Effects of manufacturing parameters on mechanical properties of particleboards with the core layer made from willow Salix viminalis. Three-layer experimental particleboards were prepared using the willow Salix viminalis particles for the core layer and industrial pine particles for the face layers. The press temperature (180 and 200°C), press time (4 and 6 min) and shelling ratio (0.3 and 0.4) were variable parameters. The modulus of elasticity (МОЕ), modulus of rupture (MOR), internal bond (IB) and screw holding strength (SHS) of particleboards were investigated. In general, the considered factors significantly affected the mechanical properties of particleboards.
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