DEODORIZATION
The deodorization process of the last stage of chemical refining is carried out to remove undesirable taste and odour of the oil from the oil under high temperature and low pressure and by the effect of water vapour.
Substances removed from the oil during deodorization are examined under three groups; saponifying agents (free fatty acids, part glycerides, methyl esters, waxy substances), non-saponifiable substances (carbons olefinic and polyolefinic substances, sterols, triterpenic alcohols) and products resulting from oxidative reactions (aldehydes, ketones, peroxides).
- The objectives of the deodorization process can be listed below;
- It is removed of volatile tastes, fragrances, and residual free fatty acids.
- Carotenoids in palm oil are transformed into colorless components that are oxidized at high temperature.
- The opening of oil.