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Bernam bleachability test method for palm oil
Author(s) -
Krishnan S.
Publication year - 1975
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02901815
Subject(s) - palm oil , pulp and paper industry , bleach , refining (metallurgy) , environmental science , palm , process (computing) , peroxide , process engineering , chemistry , computer science , waste management , agricultural engineering , food science , engineering , organic chemistry , physics , quantum mechanics , operating system
A bleachability test method called the Bernam method is proposed for crude palm oil, based upon the percentage of color removed on the original color, as measured on a Lovibond 1 in. cell. The test uses absorption bleaching by 3% activated fuller's earth (Fulmont 237) at 150 C under inert gas blanket. It shows improved sensitivity over two existing bleach‐ability methods and to both primary and secondary oxidation of palm oil, as measured by the peroxide, anisidine, and total oxidation values. It has been applied successfully to detect changes in the quality of palm oil during production, storage, and shipment to the consumer. In view of its encouraging response to oxidation, it should be possible for the consumer to relate the method to process conditions in the refining of palm oil.