The Basics of Xylanase Enzyme: An Introduction

What is Xylanase Enzyme?

Xylanase enzyme is present in nature and it is generated by a variety of microorganisms such as bacteria, fungi, yeasts, protozoa, algae, etc. Xylanase is a hydrolyzing enzyme that is capable of degrading xylan, a plant cell component. Microbial xylanase enzyme mainly degrades xylan hemicellulose, which is abundant in nature, by destroying the connection regions formed by covalent cross-links and hydrogen bonds in xylan molecules. Microbial xylanases have various utilizations. This paper mainly delves into the meaning of xylanase enzyme and its multifunctional uses involving food, animal feed, fruit juices, and pulp bleaching.

Multiple Applications of Xylanase Enzyme

Xylanase in Fruit Juice Clarification

Xylanase enzyme from the genus Streptomyces can also be applied in the extraction and clarification of various fruit juices such as peaches, oranges, apples, pineapples, and so on. As the raw juice contains a large amount of cellulose hemicellulose, amylopectin and other substances, these substances can have a significant negative impact on the quality of the juice. For example, they may cause the color of the juice to be blurred or the viscosity of the juice to be too high. Therefore, it is necessary for juice manufacturers to add some kind of substance to improve the transparency of juice. Xylanase enzyme can accomplish this difficult task. Suspended and insoluble solids are removed from the juice by centrifugation and filtration. The incorporation of xylanase enzyme into the juice contributes to the reduction of the viscosity of the juice and improves its clarity. At the same time, the aroma and color of the juice will be more prominent and attractive.

Xylanase Enzyme in Bread

Xylanase enzyme is in extensive use in bread making. Xylanase additive is usually applied to wheat bread to improve its quality. The addition of xylanase ingredient to wheat bread enables water to be evenly distributed in the dough and enhances the formation of the gluten network. Xylanase in food has the capacity to transform insoluble hemicellulose into soluble sugars, which leads to improved elasticity and softness of the dough, resulting in a fluffy, soft, and elastic bakery product. Moreover, the presence of xylanase enzyme also helps to increase the volume and shelf life of the bread, thereby reducing the hardness of the bread and slowing down its aging during storage.

Xylanase Enzyme in Animal Feed

Xylanase enzyme performs an instrumental role in animal feed and has been utilized for decades. Animal feed is mainly composed of grains such as wheat and cereals. These ingredients contain anti-nutritional factors such as arabinoxylan and other non-starch polysaccharides that are not conducive to the absorption of nutrients by poultry.However, if xylanase is added to the feed, it can break down the arabinoxylan to reduce the viscosity of the feedstuff and release the nutrients to the fullest. This means that the nutrients are more accessible to the poultry, thus improving animal nutrition and intestinal health. Additionally, incorporating high-quality xylanase additives into the feed is beneficial to enhancing the performance of endogenous enzymes, improving the feed conversion rate, and reducing feed waste.

Xylanase in Paper Industry

In the past, people used to use chemical bleach to whiten paper. However, chemical bleach is more harmful to the environment. So with the development and progress of science and technology, people think of an alternative to chemical bleach used in the pulp and paper industry. This alternative is xylanase additive. Currently, xylanase bleaching technology is the most widely adopted biotechnology in actual mill operations. Bleaching with lignin hemicellulolytic enzymes has taken off worldwide. The utilization of xylanase in bleaching has improved the pulp and paper industry and processes. The use of xylanase enzyme for bleaching in mills has many advantages. For example, xylanase additives can boost pulp brightness and minimize production costs. Furthermore, xylanase in paper industry is able to decrease the amount of chlorine dioxide and reduce wastewater discharges, thus protecting the environment.

Conclusion

As an up-and-coming green tool, food xylanase is an important industrial enzyme that has attracted widespread attention from industry. Xylanase enzyme can be used not only for animal feed, but also for bread making, juice and wine clarification. Xylanase additives are also involved in pulp bleaching and textiles.

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