Xylanase

What is the xylanase enzyme used for?

Xylanase is a key enzyme for xylan degradation. It optimizes baked goods' texture, aids in clarifying fruit juices and beer, breaks down anti-nutritional xylan in cereals to boost animals' nutrient absorption, and is used in papermaking pulp bleaching and lignocellulose conversion for biomass energy.

Mechanism of action

Xylanase catalyzes the hydrolysis of β-1,4-glycosidic bonds in xylan molecules, gradually breaking down complex xylan polymers into small-molecule sugars such as xylooligosaccharides, xylobiose and xylose.

Food Industry: Xylanase in the baking industry can improve the extensibility and air retention of dough, making the bread softer in texture and extending its shelf life. Xylanase helps release starch and sugar in malt for beer, enhancing fermentation efficiency and alcohol content; it can also increase the juice yield and clarity of fruit juices and fruit wines.

Feed Industry: Xylanase can increase the digestibility of feed. For cereal feed, it can release starch and protein that are encapsulated by xylan. Xylanase can reduce the viscosity of chyme in the animal's intestines, thereby improving the growth performance and feed conversion rate of farmed animals.

Plant extraction: Xylanase decomposes xylan, releasing substances within the cells, which can be applied in plant extraction processes. Enzymatic extraction is more efficient and environmentally friendly compared to traditional methods.

Papermaking industry: Xylanase acts on the surface of cellulose, which can remove the residual xylan in the pulp, improve the efficiency of bleaching agents, reduce the usage of bleaching agents, and enhance the whiteness and brightness of the paper.

Substrate specificity: Xylanase mainly acts on xylan and has very low or no activity towards other polysaccharides such as cellulose and starch, demonstrating high specificity.

High catalytic efficiency: Xylanase can rapidly decompose complex xylan into xylans or xylose. The reaction rate is fast, the product is single, and there are no excessive by-products.

Synergistic effect: Xylanase can be combined with other enzyme preparations such as pectinase and cellulase in applications such as juice clarification and biological pulping, thereby exerting a synergistic effect.

Q1:What are the sources of xylanase?

Xylanase can be derived from various sources, including Trichoderma reesei, Bacillus sp., or other fungal and bacterial microorganisms. The microbial sources are the mainstream in industrial applications.

Q2: Is xylanase safe to eat?

Xylanase is a safe source. After consumption, it will be digested and decomposed, leaving no residues or toxic side effects. It complies with food safety standards. Daily intake through processed foods is harmless to the body.

Q3: Is xylanase good for you?

Xylanase has positive effects on the human body. It can help break down xylan in food, improve the efficiency of nutrient absorption, and reduce the burden on the intestines, thereby promoting the balance of intestinal flora.

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