Method of manufacturing xylose solution from xylan-containing ra

Details Method of manufacturing xylose solution from xylan-containing ra Method of manufacturing xylose solution from xylan-containing ra

1979-02-05

1980-10-07

Lutter, Frank W.

Sugar, starch, and carbohydrates

Processes

Carbohydrate manufacture and refining

127 1, 127 45, C13K 102, C13D 100

Patent

active

042266386

ABSTRACT:
Xylan-containing raw material which is very absorbent in the dry state, particularly one year old plants, is treated with an acid either by spraying or by an acid vapor to a limited extent. The extent of treatment is sufficient to permit hydrolysis of the xylan to xylose without complete saturation of the raw material. After hydrolysis, the raw material is washed in counterflow with water to extract the xylose solution. Washing may be accomplished in an extraction column or in a multi-step mixing arrangement.

REFERENCES:
patent: 787102 (1905-04-01), Lorenz
patent: 2086963 (1937-07-01), Scholler
patent: 2474669 (1949-06-01), Hereng
patent: 3275472 (1966-09-01), Tantawi et al.
patent: 3523911 (1970-08-01), Funk et al.
patent: 4023982 (1977-05-01), Knauth
Pigman, W. and Horton, D., The Carbohydrates, vol. IIA, N.Y., Academic Press, 1970, Chapter 37, pp. 452-453, by R. L. Whistler and E. L. Richards, Hemicelluloses.

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