초록 ▼

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

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.

대표청구항 ▼

A method of manufacturing a xylose solution from a xylan containing plant raw material in particular animal plants which is very water absorbent in the dry state, said method comprising the steps of spraying the raw material with an acid to an extent sufficient to permit hydrolysis of the xylan to x

A method of manufacturing a xylose solution from a xylan containing plant raw material in particular animal plants which is very water absorbent in the dry state, said method comprising the steps of spraying the raw material with an acid to an extent sufficient to permit hydrolysis of the xylan to xylose without completely saturating the raw material; heating the raw material to a temperature sufficient to effect hydrolysis of the xylan to a xylose solution; and thereafter washing the acid-treated and heated raw material in counterflow with water to extract the xylose solution therefrom.