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- Title
Biodegradation of chestnut shell and lignin-modifying enzymes production by the white-rot fungi Dichomitus squalens, Phlebia radiata.
- Authors
Dong, Ya-Chen; Dai, Yi-Ning; Xu, Teng-Yang; Cai, Jin; Chen, Qi-He
- Abstract
As a discarded lignocellulosic biomass, chestnut shell is of great potential economic value, thus a sustainable strategy is needed and valuable for utilization of this resource. Herein, the feasibility of biological processes of chestnut shell with Dichomitus squalens, Phlebia radiata and their co-cultivation for lignin-modifying enzymes (LMEs) production and biodegradation of this lignocellulosic biomass was investigated under submerged cultivation. The treatment with D. squalens alone at 12 days gained the highest laccase activity (9.42 ± 0.73 U mg(-1)). Combined with the data of laccase and manganese peroxidase, oxalate and H2O2 were found to participate in chestnut shell degradation, accompanied by a rapid consumption of reducing sugar. Furthermore, specific surface area of chestnut shell was increased by 77.6-114.1 % with the selected fungi, and total pore volume was improved by 90.2 % with D. squalens. Meanwhile, the surface morphology was observably modified by this fungus. Overall, D. squalens was considered as a suitable fungus for degradation of chestnut shell and laccase production. The presence of LMEs, H2O2 and oxalate provided more understanding for decomposition of chestnut shell by the white-rot fungi.
- Publication
Bioprocess and biosystems engineering, 2014, Vol 37, Issue 5, p755
- ISSN
1615-7605
- Publication type
Journal Article
- DOI
10.1007/s00449-013-1045-9