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Sunflower Seed Oil Processing Steps Flows
SUNFLOWER OIL PRESSING PROCESS
STEP1 Seeds Screening
Select clean sunflower seeds with an oil content of 30~50%, and remove impurities (sediment, stone, iron filings, etc.) contained in the seeds by cleaning sieve and magnetic separator.
STEP2 Shelling & Crushing
Sunflower seeds should be pressed after shucking, which can improve production capacity and oil quality. After the sunflower seeds are screened, they are shelled in a sheller. Then through the grinder crush into a certain granularity of sunflower seed particles.
STEP3 Rolling & Steaming
Roller embryo is the grinding of sunflower oil seeds into a certain thickness of the embryo, its role is to destroy the cell tissue so that the oil is easily extracted.
STEP4 Pre-press & Extraction
After pre-extrusion, the structure of the extruded cake is loose but not crushed, which is conducive to solvent penetration for the extraction process. The quality and economic benefits of the oil extracted by the pre-pressing and extraction process are better than that of the oil extracted by single pressing or single extraction.
The common specification of crude sunflower oil:
Item |
Standard |
Smell and taste |
The original smell and taste of sunflower oil |
Moisture and volatile matter (%) ≤ |
0.20 |
Insoluble impurities (%) ≤ | 0.20 |
Acid value (mgKOH/g) ≤ |
4.0 |
Peroxide value (mmol/kg) ≤ |
7.5 |
Dodoma Tanzania | 600 tons Sunflower Seed Oil Cold Pressing and Refining Project |
Zoupin China | 600 tons Corn Oil Press Project |
Xinji,Hebei | 400 tons Corn Oil Pressing and Extracting Project |
Neimenggu, China | 360 tons Rapseed Oil Pressing Project |
Western India | 300 tons Cuttonseed Oild Pressing Project |
Ethiopian | 200 tons Rapseed Oil Pressing Project |
Vietnam | 100 tons Cashew Oil Pressing Project |
Kazakshtan | 50 tons Sunflower Seed Oil Press Project |