Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1997-06-02
1998-08-18
Kight, John
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536124, 536127, C07H 100, C07H 106, C08B 3700
Patent
active
057959790
ABSTRACT:
The present invention relates to a water-insoluble glucan purification method characterized in that a culture solution of a microbe that produces water-insoluble glucan or a microbial cell-containing solution comprising water-insoluble glucan as a component is treated with both an oxide of 0.175-3.5 wt.--wt. % and a hydroxide such that the pH value becomes 10-12.5. Since the present invention accomplishes all of the destruction of production microbe, the decolorization and the reduction of viscosity of a culture solution of a microbe that produces water-insoluble glucan or a microbe cell-containing solution comprising water-insoluble glucan as a component, the invention purifies water-insoluble glucan industrially at low costs and with a high efficiency.
REFERENCES:
patent: 4072567 (1978-02-01), Yokobayashi et al.
patent: 4908310 (1990-03-01), Clarence S. Buller
patent: 5223491 (1993-06-01), Byron A. Donzis
Chemical Abstracts, vol. 83, No. 18, p. 90, 1975, AN-148908m, M. Egamberdyev, et al., "Preparation of High-Quality Cotton Cellulose for Rayon Production".
Journal of Cereal Science, vol. 13, No. 3, pp. 275-290, 1991, H. Gruppen, et al., "Barium Hydroxide As A Tool To Extract Pure Arabinoxylans From Water-Insoluble Cell Wall Material of Wheat Flour".
Kusatsu Masayoshi
Miyashiro Shigeyoshi
Tanegawa Tetsuo
Ajinomoto Co. Inc.
Kight John
White Everett
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