Enhanced membrane separation of monosaccharides utilizing concen

Details Enhanced membrane separation of monosaccharides utilizing concen Enhanced membrane separation of monosaccharides utilizing concen

1989-06-20

1991-04-16

Lilling, Herbert J.

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing compound containing saccharide radical

127 55, 210651, 210654, 435 96, 435205, 435262, 435280, 435803, C12P 1902, C12P 1920, B01D 6100, B01D 6114

Patent

active

050081896

ABSTRACT:
Membrane separation of monosaccharides from an aqueous solution containing higher saccharides and saccharifying enzyme is considerably improved when the separation is performed under conditions where the polarization modulus for the enzyme is between 10 and 1,000, especially when the latter is between 50 and 500. A process utilizing this constraint affords a considerable savings in enzyme residence time and enzyme usage, and permits glucose of at least 94% purity to be prepared using membranes with a molecular weight cutoff as high as 70,000 with partial saccharification of thinned starch to give glucose levels in the range of 65-90%.

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Cross et al., "Barrier Separation Processes" in Karger, B. L. et al., "An Introduction to Separation Science" (N.Y., John Wiley & Sons, Inc. 1973), pp. 469-478.

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