The present paper has studied the qualitative producedure of the true cellulose and ligninin bast fibres. We removed the non-cell wall components and heli-cellulose in our samples withacid-detergent solution, with 72% H_2SO_4, quantifyed glucose in the hydrolyzed solution withanthrone reagent by calorimetric method, calculated the true cellulose, and determined thelignin from components insoluble in 72% H_2SO_4. Our method was simple and rapid in opera-tion.
The present paper has studied the qualitative producedure of the true cellulose and ligninin bast fibres. We removed the non-cell wall components and heli-cellulose in our samples withacid-detergent solution, with 72% H_2SO_4, quantifyed glucose in the hydrolyzed solution withanthrone reagent by calorimetric method, calculated the true cellulose, and determined thelignin from components insoluble in 72% H_2SO_4. Our method was simple and rapid in opera-tion. The analysis cost was cheap. The reproduction of ...
With consumption of acidic detergent fixed,main factors affecting test result were examined.It showed that,high accuracy and good reproducibility of measurement come of the following conditions:partical size of sample 1mm;sustained soaking in acid 1.5h;solution under slight boiling condition;hot water consumption 250mL.