Process of increasing the digestability of cellulosic material u

Details Process of increasing the digestability of cellulosic material u Process of increasing the digestability of cellulosic material u

1976-02-02

1977-10-11

Penland, R. B.

Food or edible material: processes, compositions, and products

Fermentation processes

Of plant or plant derived material

426 54, 426 60, 426635, A23K 100

Patent

active

040536459

ABSTRACT:
A process of treating cellulosic plant matter to increase the digestability thereof by animals, in which finely divided plant matter, such as sawdust, rice hulls, bagasse, wheat straw, or the like, is mixed with water and nitric acid or a combination of water, nitric acid and a nonoxidizing acid, such as sulfuric, phosphoric, hydrochloric or acetic, to produce a mixture of about 20% water, 1/4 to 1% oxygen based on the oven dried weight of organic material, the oxygen being released from the nitric acid, and a pH of 0.5 to 3.5, and cooking the mixture in a pressurized vessel at about 125 psig for 30 to 60 minutes. The cooked product may then be neutralized to raise the pH to a desired level for animal feed.

REFERENCES:
patent: 1092221 (1914-04-01), Little
patent: 1816135 (1931-07-01), Acree
patent: 3939286 (1976-02-01), Jelks
Rydholm "Pulping Processes", Lignin-Degradative Pulping Interscience Publishers 1965 pp. 673-677.

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