Process for the preparation of crystalline lactulose from commercial syrups
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United States of America Patent
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Jan 2, 1996
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app pub date -
Apr 18, 1994
filing date -
Apr 28, 1993
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Abstract
The following description sets forth a new process for the preparation of .gtoreq.98.5% pure crystalline lactulose from commercially available aqueous syrups having the following composition: 50-70% by weight of lactulose, 3-9% by weight of lactose, 3-14% by weight of galactose, 4-7% by weight of other carbohydrates, the total content of carbohydrates different from lactulose being of from 10% to 30%.
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