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July 1, 1947Journal of the American Oil Chemists Society

Chlorophyll removal during earth bleaching of soybean oil

William C. Pritchett William Taylor Dorothy Carroll

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Abstract

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.

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Pritchett et al. (1947) studied this question.

synapsesocial.com/papers/6a9339c308fea9c5d8d18853 https://doi.org/10.1007/bf02593199

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