Archive
oilseed-processing
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Neutralization
Neutralization removes free fatty acids from degummed oil by treating it with an alkali solution, forming soapstock that is separated out. It…
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Oil Refining
Oil refining is the sequence of treatments that converts crude oil into edible oil, typically degumming, neutralization, bleaching and deodorization. Refining removes…
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Oil Bleaching
Oil bleaching removes colour pigments, residual soaps and oxidation products by treating the oil with bleaching earth or activated carbon, then filtering…
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Deodorization
Deodorization strips volatile odour and flavour compounds from oil by steam distillation under high temperature and vacuum. It produces a neutral, bland…
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Winterization
Winterization chills oil slowly to crystallise waxes and high-melting saturated fats, which are then filtered out. It keeps oils such as sunflower…
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Oilseed Cleaning
Oilseed cleaning removes impurities such as dust, stones, stems, weed seeds and damaged seeds from rapeseed, sunflower, soybean or linseed before processing.…
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Oil Yield
Oil yield is the amount of oil recovered from a given quantity of oilseed, expressed as a percentage. It depends on seed…
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Decortication
Decortication, or dehulling, removes the outer husk or shell from oilseeds such as sunflower and soybean before pressing. Removing the hull raises…
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Press Cake
Press cake is the solid residue left after mechanical pressing of oilseeds, still containing a moderate amount of oil. It is used…
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Flaking
Flaking rolls conditioned oilseeds into thin flakes between smooth rollers to rupture cell structure and increase surface area. It is a key…