Fine fibrous cellulosic material and process for producing the same

Abstract

[Problem] To provide a fine fibrous cellulosic material capable of producing a saccharide in a high yield by hydrolysis; to provide a process for producing the fine fibrous cellulosic material from a cellulosic material; and to provide a process for producing the saccharide using the fine fibrous cellulosic material. [Means for Solving Problems] The present invention is the fine fibrous cellulosic material containing cellulose, hemicellulose and lignin, which the fine fibrous cellulosic material has a width of 1 μm or less and a length of 5,000 μm or less and is used for glycation reaction by hydrolysis.

1 . A fine fibrous cellulosic material containing cellulose, hemicellulose and lignin, the fine fibrous cellulosic material characterized by:
 having a width of 1 μm or less and a length of 5,000 μm or less; and   being used for glycation reaction by hydrolysis.   
   
   
       2 . The fine fibrous cellulosic material according to  claim 1 , characterized in that the hydrolysis is enzymatic hydrolysis. 
   
   
       3 . A process for producing a fine fibrous cellulosic material used for glycation reaction by hydrolysis, characterized by: carrying out mechanical pulverization of a mixture prepared by mixing a cellulosic material containing cellulose, hemicellulose and lignin with a fibrillation material for fibrillating the cellulosic material; and making a fine fibrous cellulosic material having a width of 1 μm or less and a length of 5,000 μm or less from the cellulosic material. 
   
   
       4 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that the mechanical pulverization is performed by a ball mill, a rod mill, a bead mill, a disk mill or a mixer. 
   
   
       5 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that the mechanical pulverization is performed by a batch-type or continuous-type extruder. 
   
   
       6 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that the mechanical pulverization is performed under a temperature condition of 20-350° C. and/or a pressure condition of 0.1-20 MPa. 
   
   
       7 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized by: preliminarily pulverizing the cellulosic material to make a chip-like, fibrous or powdered fine cellulosic material; thereafter mixing the fine cellulosic material with the fibrillation material; and performing the mechanical pulverization. 
   
   
       8 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that a mixing rate of the fibrillation material is 0.01-200 parts by mass with respect to 1 part by mass of cellulosic material. 
   
   
       9 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that the fibrillation material is water. 
   
   
       10 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that the fibrillation material is a low-molecular compound. 
   
   
       11 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that the fibrillation material is a high-molecular compound. 
   
   
       12 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that the fibrillation material is a fatty acid. 
   
   
       13 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that:
 the fibrillation material is constituted of water and a low-molecular compound; and   a mixing rate of the low-molecular compound is 0.1-99.9 mass % with respect to a total weight of the fibrillation material.   
   
   
       14 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that:
 the fibrillation material is constituted of water and a high-molecular compound; and   a mixing rate of the high-molecular compound is 0.1-99.9 mass % with respect to a total weight of the fibrillation material.   
   
   
       15 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that:
 the fibrillation material is constituted of water and a fatty acid; and   a mixing rate of the fatty acid is 0.1-99.9 mass % with respect to a total weight of the fibrillation material.   
   
   
       16 . The process for producing a fine fibrous cellulosic material according to  claim 3 , characterized in that:
 the fibrillation material is constituted of water and an inorganic alkali; and   a mixing rate of the inorganic alkali is 0.1-99.9 mass % with respect to a total weight of the fibrillation material.   
   
   
       17 . A process for producing a saccharide characterized by: carrying out mechanical pulverization of a mixed liquid prepared by mixing a cellulosic material containing cellulose, hemicellulose and lignin as well as a fibrillation material for fibrillating the cellulosic material with an enzyme; and, concurrently with making a fine fibrous cellulosic material from the cellulosic material, carrying out enzymatic hydrolysis of the fine fibrous cellulosic material with the enzyme to make a saccharide. 
   
   
       18 . A process for producing a saccharide, characterized by providing a saccharide by performing acid hydrolysis or enzymatic hydrolysis of a fine fibrous cellulosic material provided by the process for producing a fine fibrous cellulosic material according to  claim 3 .