Specifically, 600 g BSG were mixed with 1600ml of 1% NaOH solution and were boiled with continuous stirring for about 3 h. After that the deligniWed BSG (DBSG) were washed well with water and then drained
Specifically, 600 g BSG weremixed with 1600ml of 1% NaOH solution and were boiledwith continuous stirring for about 3 h. After that the deligniWedBSG (DBSG) were washed well with water and thendrained