On top of the better quality of final product for some seed qualities, it brought savings of about 20 to 25?kg steam/t of seed. As lateral benefit, the residual oil in hulls is also improved, bringing down the oil in hull from almost 2% to 1% (for soybean).
Can a press cake be used for soybean seeds?
Although it is not used for soybean, the mechanical press process is applied today for seeds with high oil content like sunflower, rapeseed etc., in general for pre-pressed purpose; the intermediate residual oil content in press cake is about 20%.
How is crude oil produced in a soybean crushing plant?
The crude oil is usually water degummed in the crushing plant which generates an additional flow, consisting of gums (or lecithin). Table 1 presents the main quality parameters (optimal contents) of the major products from soybean crushing.
What is the residual oil content of soybean meal?
It is critical to avoid the presence of cracks in order to get reasonable residual oil content in the meal. In a modern and efficient extraction plant (Fig. 9), a residual oil content ¡Ü?0.5% for soybean meal is expected.