ペントザン誘導體に關する研究 : (第4報)バガスよりキシローズの製造

概要

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Xylan was prepared from bagasse and was hydrolyzed with 0.1_??_10% H2SO4 at 100° under atmospheric pressure. The optimum condition for the preparation of xylose was pursured. Then the preparation of xylose from bagasse was conducted as follows: 1kg of powdered bagasse was treated with 1% NaOH solution at room temperature for 1_??_2 days, washed thoroughly with water and hydrolyzed for 2_??_6 hrs. with 4_??_8% H2SO4 at under normal pressure. It was found that 70_??_75% of the total amount of the sugars formed was pentose. The crude crystals of xylose were obtained very easily without the use of CH3COOH or C2H5OH. In order to raise the sugar concentration of the hydrolyzate, the solution after saccharifications was repeatedly utilized for the the following process of hydrolyzing the bagasse. The sugar concentration was raised from 2.5% to 7.3% after the 4th repeated hydrolysis.
社団法人日本農芸化学会の論文