Production process
First,expression method
Wheat germ oil rate 7-9%, 4-5% squeezing can be extracted from crude oil of wheat germ, wheat germ extract can actually yield a lower refined oil. First, high processing costs no competitive advantage, followed by processing of this approach there is a waste of resources.
Second, the extraction
1, solvent supercritical carbon dioxide extraction
This extraction method is low-temperature processing, better quality can be extracted wheat germ oil, no solvent residue. However, the equipment into a larger one, because in the state under high pressure extraction, extraction Fou food additives smaller (maximum of 1000 liters), limited production capacity and high cost.
2, pressure solvent (hexane or other liquid solvent) extraction
This extraction method exists in the processing temperature, wheat germ oil extract nutrients will be destroyed, the high residual solvent.
3, sub-critical low-temperature extraction of n-butane
This way the entire production process at low temperature, nutrient composition of wheat germ oil will not be destroyed, and high yield, with good oil products. Pectin Quality can be extracted with supercritical carbon dioxide comparable.
Can form large-scale production, a small one-time investment in fixed assets, low production costs, environmental protection and energy saving.
First,expression method
Wheat germ oil rate 7-9%, 4-5% squeezing can be extracted from crude oil of wheat germ, wheat germ extract can actually yield a lower refined oil. First, high processing costs no competitive advantage, followed by processing of this approach there is a waste of resources.
Second, the extraction
1, solvent supercritical carbon dioxide extraction
This extraction method is low-temperature processing, better quality can be extracted wheat germ oil, no solvent residue. However, the equipment into a larger one, because in the state under high pressure extraction, extraction Fou food additives smaller (maximum of 1000 liters), limited production capacity and high cost.
2, pressure solvent (hexane or other liquid solvent) extraction
This extraction method exists in the processing temperature, wheat germ oil extract nutrients will be destroyed, the high residual solvent.
3, sub-critical low-temperature extraction of n-butane
This way the entire production process at low temperature, nutrient composition of wheat germ oil will not be destroyed, and high yield, with good oil products. Pectin Quality can be extracted with supercritical carbon dioxide comparable.
Can form large-scale production, a small one-time investment in fixed assets, low production costs, environmental protection and energy saving.
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