Process for producing L-sugars

Details Process for producing L-sugars Process for producing L-sugars

1981-08-26

1983-02-01

Shapiro, Lionel M.

Chemistry: molecular biology and microbiology

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

Preparing compound containing saccharide radical

536 11, C12P 1902, C07H 100, C07H 106

Patent

active

043716164

ABSTRACT:
A method for producing L-sugars including L-idose and L-gulose from D-glucose. The method comprises hydrogenating D-glucose to provide sorbitol, oxydizing the D-sorbitol to provide L-sorbose, racemizing the L-sorbose to provide a mixture of L-sorbose, L-idose and L-gulose, and precipitating the L-sorbose with lime from a dilute solution. The unconverted L-sorbose is recovered by carbonation and recycled. The hydrogenation of glucose is done in a fixed catalyst bed.

REFERENCES:
patent: 2207768 (1940-07-01), Weijlard et al.
patent: 4036694 (1977-07-01), Meguro et al.
patent: 4262032 (1981-04-01), Levin
patent: 4322569 (1982-03-01), Chao et al.

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