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Cereal Chem 46:344 - 348.  |  VIEW ARTICLE
Crystalline Saponins from Soybean Protein.

A. C. Eldridge and W. J. Wolf. Copyright 1969 by the American Association of Cereal Chemists, Inc. 

Isolated soybean protein contains saponins which can be removed by a mild acid treatment and crystallized. The crystalline material is a mixture of at least three saponins. Hydrolysis of the saponins reveals soyasapogenols B, C, and D; soyasapogenol B is present in the highest concentration. According to paper and gas-liquid chromatography the crystalline saponins contain at least five different sugars: glucose, galactose, arabinose, rhamnose, and glucuronic acid. It is yet to be established whether or not the saponins are covalently bonded to the protein.

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