Comparison of the synergistic action of two thermostable xylanases from GH families 10 and 11 with thermostable cellulases in lignocellulose hydrolysis

J. Zhang (Corresponding Author), P. Tuomainen, Matti Siika-aho, Liisa Viikari

    Research output: Contribution to journalArticlepeer-review

    60 Citations (Scopus)

    Abstract

    Recombinant xylanase preparations from Nonomuraea flexuosa (Nf Xyn, GH11) and Thermoascus aurantiacus (Ta Xyn, GH10) were evaluated for their abilities to hydrolyze hydrothermally pretreated wheat straw. The GH family 10 enzyme Ta Xyn was clearly more efficient in solubilizing xylan from pretreated wheat straw. Improvement of the hydrolysis of hydrothermally pretreated wheat straw by addition of the thermostable xylanase preparations to thermostable cellulases was evaluated. Clear synergistic enhancement of hydrolysis of cellulose was observed when cellulases were supplemented even with a low amount of pure xylanases. Xylobiose was the main hydrolysis product from xylan. It was found that the hydrolysis of cellulose increased nearly linearly with xylan removal during the enzymatic hydrolysis. The results also showed that the xylanase preparation from T. aurantiacus, belonging to GH family 10 always showed better hydrolytic capacity of solubilizing xylan and acting synergistically with thermostable cellulases in the hydrolysis of hydrothermally pretreated wheat straw.
    Original languageEnglish
    Pages (from-to)9090-9095
    Number of pages6
    JournalBioresource Technology
    Volume102
    Issue number19
    DOIs
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Cellulase
    • enzymatic hydrolysis
    • thermostable
    • wheat straw
    • xylanase

    Fingerprint

    Dive into the research topics of 'Comparison of the synergistic action of two thermostable xylanases from GH families 10 and 11 with thermostable cellulases in lignocellulose hydrolysis'. Together they form a unique fingerprint.

    Cite this