Applied biochemistry and biotechnology, 2014-09, Vol.174 (1), p.81-92
2014
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- Autor(en) / Beteiligte
- Titel
- Microbial Exo-xylanases: A Mini Review
- Ist Teil von
- Applied biochemistry and biotechnology, 2014-09, Vol.174 (1), p.81-92
- Ort / Verlag
- Boston: Springer-Verlag
- Erscheinungsjahr
- 2014
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- Exo-xylanases are a class of glycosyl hydrolases and play an important role in hydrolysis of xylan to xylose. They belong to glycosyl hydrolase (GH) family 8 with a characteristic (α/α)₆ barrel fold in their molecular structures. These enzymes are generally produced by bacteria. Exceptionally, the endo-xylanases from Trichoderma reesei Rut C-30 and a few bacterial strains also show considerable exo-xylanase activities. Exo-xylanases are active on natural xylan substances, hydrolyzing long-chain xylo-oligomers from the reducing end to produce short-chain xylo-oligomers and xylose. Exo-xylanases usually show multiple enzyme functions such as β-xylosidase, exo-glucanase, β-glucosidase, and arabinofuranosidase activities, which are helpful for more efficient hydrolysis of xylan. The combined use of exo- and endo-xylanases can increase the xylose yield compared to using either of them alone. Screening new exo-xylanase-producing microbes, mining the enzyme coding sequences, genetically engineering the enzymes, and producing them in a large scale are recommended for their commercial applications in lignocellulose-based biorefinery.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0273-2289eISSN: 1559-0291DOI: 10.1007/s12010-014-1042-8Titel-ID: cdi_proquest_miscellaneous_1566838874
- Format
- –
- Schlagworte
- alpha-N-arabinofuranosidase, bacteria, beta-glucosidase, Biochemistry, Biological and medical sciences, Biorefineries, biorefining, Biotechnology, chemical structure, Chemistry, Chemistry and Materials Science, Endo-1,4-beta Xylanases - chemistry, Endo-1,4-beta Xylanases - metabolism, Enzymes, Fundamental and applied biological sciences. Psychology, Fungal Proteins - chemistry, Fungal Proteins - metabolism, Genetic engineering, Hydrolysis, Hypocrea jecorina, Lignin - chemistry, Lignin - metabolism, Lignocellulose, Microorganisms, Protein Structure, Tertiary, screening, Substrate Specificity, Trichoderma - enzymology, xylan, xylan 1,4-beta-xylosidase, Xylans - chemistry, Xylans - metabolism, xylose, Xylose - chemistry, Xylose - metabolism