Method for preparing powdery crystalline cellulose

Details Method for preparing powdery crystalline cellulose Method for preparing powdery crystalline cellulose

1991-11-15

1992-12-29

Nutter, Nathan M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

536124, 127 29, 127 34, 514781, 435 99, 435277, C08B 3000, C13F 300, A01N 2500

Patent

active

051752751

ABSTRACT:
The present invention relates to powdery crystalline cellulose having an average particle size ranging from 3 to 30 .mu.m and an average degree of polymerization ranging from 400 to 1,500. The powdery crystalline cellulose can be prepared according to a method comprising treating a starting cellulose material with a cellulase, subjecting the enzyme-treated cellulose material to acid hydrolysis under mild conditions, and then mechanically pulverizing the hydrolyzed cellulose material. The powdery crystalline cellulose is suitable for various applications of foods, cosmetics, medicines and various industrial products.

REFERENCES:
patent: 3972775 (1976-08-01), Wilke et al.
patent: 3984339 (1976-10-01), Takeo et al.
patent: 4266981 (1981-05-01), Tsao et al.
patent: 4281063 (1981-07-01), Tsao et al.
patent: 4427778 (1984-01-01), Zabriskie
patent: 4958014 (1990-09-01), Shirokaze

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