Process for production of crystalline L-arabinose

Details Process for production of crystalline L-arabinose Process for production of crystalline L-arabinose

1988-01-21

1989-03-28

Davis, Curtis R.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 37, 127 44, 127 43, 127 53, 127 55, 127 58, 127 462, 127 461, C13K 1300

Patent

active

048160784

ABSTRACT:
The invention concerns a process for production of L-arabionose in crystalline form. Starting material are extracted sugar beet pulp or other L-araban containing plant materials. These are heated in an autoclave as an aqueous suspension in the presence of Ca(OH).sub.2. The so obtained solution is chromatographed on a cationic exchanger in the Ca-form. The araban containing fraction is hydrolyzed after adding H.sub.2 SO.sub.4, neutralized and rechromatographed on a cationic exchanger in Ca-form. After concentrating the arabinose containing fractions L-arabinose is obtained in form of crystals by cooling crystallization.

REFERENCES:
patent: 4516566 (1985-05-01), Chao et al.
patent: 4591388 (1986-05-01), Chao et al.
A. E. Goodban and H. S. Owens (J. Am. Soc. Sugar Beet Technol. 9, 129-132, 1956).
S. Harding (Sugar 24, 656, 1922).
L. Sands (Org. Synth. 1, 67, 1941).

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