期刊
BIORESOURCE TECHNOLOGY
卷 133, 期 -, 页码 142-149出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2013.01.072
关键词
Laccase activity; Pleurotus ostreatus; Wheat straw; Inducer; Wastewater effluent
资金
- Spanish National Research Plan [AGL2011-30495]
- Bioethanol-Euroin-nova, from the Autonomous Government of Navarre
The purpose of this work was to explore the use of polluted water effluents from wheat straw using industries as inducers of lignocellulolytic enzymatic activities in cultures of white rot basidiomycetes. For this purpose, we studied the effect of a wheat straw water extract on the evolution of the laccase activity recovered from submerged cultures of Pleurotus ostreatus made in different media and under various culture conditions. Our results demonstrated an accumulative induction effect in all the cultures and conditions tested. This induction is parallel to changes in the laccase electrophoretic profiles recovered from the culture supernatants. The isoenzyme that appeared to be mainly responsible for the laccase activity under these conditions was laccase 10, as confirmed by sequencing the induced protein. These results support the idea of using wheat straw effluents as inducers in liquid cultures of P. ostreatus mycelia for the production of ligninolytic enzymatic cocktails. (C) 2013 Elsevier Ltd. All rights reserved.
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