**Conflict of interest**

The authors declare no conflict of interest.

*Xylanase and Its Industrial Applications DOI: http://dx.doi.org/10.5772/intechopen.92156*

Conclusively, the xylanases have potential applications in a wide range of industrial processes, covering all sectors of industrial enzymes markets. Arguably, these are attractive for research studies and deeper investigation with aims to explore dividends and utility of these useful products in industrial context in rela-

Microbial xylanases are gaining importance in industrial applications. The thermophilic microorganisms are of interest in the field of biotechnology because of their ability to express enzymes that tolerate high temperature and pH. The thermophilic bacteria, and an archaeal species, there are also filamentous fungi that grow in diverse environments and produce xylanase. New recombinant DNA technology can be used to express xylanases in both homologous and heterologous host organisms. Compared to *E. coli, P. pastoris* considered the most suitable and excellent host for the heterologous proteins expression including xylanases. Xylanases generally must be genetically modified in order to increase the expression level with improved xylanase activity, but these alterations can change substrate specificity and stability at high temperatures and pH. Many xylanases have xylan-binding domains that can affect the thermostability of the enzymes and their ability to bind

insoluble substrates. In conclusion, the lignocellulosic biomass and enzymeproducing microorganisms are compelling subjects for research studies aiming to explore the growing importance of xylanases in various industrial products.

This study was supported by National Natural Science Foundation of China

tion to industrial enzymes producing organisms.

*Biotechnological Applications of Biomass*

**9. Summary**

**Acknowledgements**

**Conflict of interest**

The authors declare no conflict of interest.

(31570067).

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