摘要 |
The invention relates to a method comprising: irradiating a lignocellulosic feedstock material in air, using an electron beam, to generate carboxylic acid groups by reaction of the irradiated feedstock with the air and thereby provide an irradiated lignocellulosic material having a larger number of carboxylic acid groups than the lignocellulosic material from which the irradiated material was obtained. |