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A comparative study between biorefining combined with other processes and physical refining of high‐acid mohua oil
Author(s) -
Sengupta R.,
Bhattacharyya D. K.
Publication year - 1992
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/bf02541052
Subject(s) - unsaponifiable , refining (metallurgy) , biorefining , chemistry , oil refinery , triglyceride , pulp and paper industry , food science , organic chemistry , raw material , biochemistry , cholesterol , engineering , biorefinery
The biorefining process under optimum conditions de‐acidified the high‐acid mohua oil by nearly 85% with considerable improvement of color. The process, in combination with alkali‐refining, bleaching and deodorization, yielded excellent oil with respect to color, unsaponifiable matter content and triglyceride content. The combination of biorefining and physical refining significantly reduced the loss of oil, and the color, unsaponifiable matter and diglyceride content increased while triglyceride content decreased. The physical refining process alone, on the other hand, produced oil with considerably darker color, increased unsaponifiable matter and diglycerides, and decreased triglyceride. Biorefining followed by alkali‐refining, bleaching and deodorizing steps or by physical refining can be regarded as a much better alternative refining process than the physical refining process alone for oils of high acidity.