buy Soybean meal online
buy Soybean meal online is used in food and animal feeds, principally as a protein supplement, but also as a source of metabolizable energy. Typically 1 bushel (i.e. 60 lbs. or 27.2 kg) of soybeans yields 48 lbs. (21.8 kg) of soybean meal. Some, but not all, soybean meal is produced from the residue left after oil extraction , buy Corn meal online .
There are 3 main processes to extract soybean oil:
- The most common process consists in extracting oil from soybean flakes by solvent. In the USA, virtually all soybeans (99%) are solvent-extracted. This method is the most efficient and about 1.5% oil is left in the resulting soybean meal.
- The second method consists in a mechanical extraction by a screw press (expeller). This method yields less oil and a soybean meal containing more than 5% residual oil.
- The third method combines extruding and expelling of soybean flakes, and uses solvent for oil extraction (Johnson et al., 2018).
Before extraction, the soybean seeds undergoes differents treatments aimed at increasing oil extraction and soybean meal quality (Johnson et al., 2018; Dunford, 2012).
Cooking the seeds has positive effects on: moisture conditioning of seeds and easing dehulling, oil viscosity reduction, increasing plasticity of seed, breaking of cell walls, protein clotting by denaturation, sterilization and deactivation of thermosensitive enzymes, and destruction of thermolabile antinutritional factors (ANFs) (Dunford, 2012; Laisney 1992).
Crushing and flaking
Crushing and flaking operations promote solvent extraction step by changing the permeability of the soybean flakes (Dunford, 2012).
Dehulling is a facultative process that separates the oil-rich kernel from hulls which represents 8% of the seed and are mainly fibrous containing limited amount of oil. Dehulling also removes antinutritional factors.