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Chlorophyll removal during earth bleaching of soybean oil
Author(s) -
Pritchett W. C.,
Taylor W. G.,
Carroll D. M.
Publication year - 1947
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/bf02593199
Subject(s) - chlorophyll , refining (metallurgy) , chlorophyll a , pulp and paper industry , environmental science , chemistry , engineering , organic chemistry , biochemistry
Summary A spectrophotometric procedure for determining and calculating the chlorophyll content of unhardened as well as hardened soybean oil has been given. This procedure has proven satisfactory from a practical standpoint for controlling the greenness imparted to finished shortenings by chlorophyll. The influence of the refining, hydrogenation and deodorization operations on the chlorophyll content has also been reviewed. Isotherms have also been presented which illustrate the complexity encountered in bleaching soybean oil with respect to chlorophyll.