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What is DOBI? – Frequently Asked Questions

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CPO deterioration by oxidation is one of the most important chemical changes affecting bleachability. Bleaching is a process in refining in which the colour of the oil is reduced by the removal of coloured pigments, impurities, gums, trace metals and oxidative materials. CPO that is badly oxidized will give rise to poor quality refined oil and products made from it will be off-coloured, off-flavoured and have poor shelf life.

The oxidative change in CPO can be detected with a spectrophotometer, an instrument that measures light absorbance by the chemical species present in the oil.Dobi is a measure of the ease of bleaching during refining and is a ratio of the two known absorbencies as detected by a spectrophotometer…….

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