<p>Methods of processing paper or pulp by which wastepaper or other lignocellulose materials are disintegrated while substantially not decomposing the cellulose or hemicellulose are disclosed. A method of processing paper or pulp comprising the step of treating said paper or pulp with a bio-kaisen composition having each CM-cellulase and xylanase activity of not more than 0.5IU and a bio-kaisen activity in terms of newspaper bio-kaisen rate of not less than 50% are disclosed.</p>
