An object of the present invention is to provide a method for easily extracting and efficiently recovering xylan from wood.
A xylan-containing material is produced by a method comprising the steps of: (a) adding an acid and/or carbon dioxide to a black liquor discharged during a soda cooking step of wood chips including hardwood chips to adjust the pH of the black liquor to be in the range of 1 to 9, thereby giving a suspension; (b) dehydrating and washing an insoluble matter generated in the suspension to separately collect the insoluble matter; and (c) adding an organic solvent to the insoluble matter obtained at the step (b) to give a suspension, and separately collecting a xylan-containing material made of the insoluble matter present in the suspension by solid/liquid separation.
The present invention aims to provide a technique for preparing feedstuffs for ruminants with high nutritional value or feed efficiency.
A process for preparing a feedstuff for ruminants of the present invention comprises: suspending a lignocellulosic material as a raw material in a liquid to give a pulp; processing the resulting pulp in a pressure type solid-liquid separator; and preparing a feedstuff containing the pulp subjected to solid-liquid separation.
The present invention aims to provide feedstuffs for ruminants with high nutritional value and high digestion efficiency.
According to the present invention, feed pellets for ruminants containing a kraft pulp derived from a lignocellulosic material are provided, wherein the kraft pulp has a Canadian standard freeness of less than 400 ml.
An object of present invention is to provide a method for easily extracting and efficiently recovering xylan from wood. A xylan-containing material is produced by a method comprising steps of: (a) adding an acid and/or carbon dioxide to a black liquor discharged during a soda cooking step of wood chips including hardwood chips to adjust the pH of the black liquor to be in the range of 1 to 9, thereby giving a suspension; (b) dehydrating and washing an insoluble matter generated in the suspension to separately collect the insoluble matter; and (c) adding an organic solvent to the insoluble matter obtained at the step (b) to give a suspension, and separately collecting a xylan-containing material made of the insoluble matter present in the suspension by solid/liquid separation.
The present invention aims to provide a technique for preparing feedstuffs for ruminants with high nutritional value or feed efficiency.
A process for preparing a feedstuff for ruminants of the present invention comprises: suspending a lignocellulosic material as a raw material in a liquid to give a pulp; processing the resulting pulp in a pressure type solid-liquid separator; and preparing a feedstuff containing the pulp subjected to solid-liquid separation.