A xylanase is any enzyme which catalyzes the hydrolysis of xylan.
Saponins, flavonoids and xylanase.
Biodeterioration of paper materials is commonly caused by fungi, humid conditions favor the growth of fungi. Fungi play a role in destroying and degrading carbon and residue of nitrogen such as wood and paper. Fungi can produce hydrolytic enzymes such as cellulase, xylanase, pectinase.... Since the paper is made of cellulose and other materials, it can be destroyed and deteriorated by fungi.
The three main enzymes are lipase (breaks down fats/lipids into glycerol and fatty acids), amylase (breaks down carbohydrates into simple sugars), and protease (breaks down proteins into amino acids).