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Journal Articles
Pigment & Resin Technology (2020) 49 (5): 393–399.
Published: 02 June 2020
... depending on the type of oil. Most undesirable substances such as residues, free fatty acids and phospholipids are separated in the neutralization process of the oil refining. As a pigment, β carotene is separated by the bleaching earth (BE) in the bleaching process. The BE is disposed of as waste...

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