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Title: | Degradation of wheat straw and oak sawdust by Ganoderma applanatum | Authors: | Ćilerdžić, Jasmina Stajić, Mirjana Vukojević, Jelena |
Keywords: | Degradation;Ganoderma applanatum;Ligninolytic enzymes;Oak sawdust;Wheat straw | Issue Date: | Oct-2016 | Rank: | M22 | Publisher: | Elsevier | Journal: | International Biodeterioration & Biodegradation | Volume: | 114 | Start page: | 39 | End page: | 44 | Abstract: | Ganoderma applanatum is a widely-distributed wood decaying species whose ligninolytic enzyme system has not been sufficiently studied. The aims of the study were to profile its Mn-oxidizing peroxidases and laccases and defining of wheat straw and oak sawdust delignification extents depending on cultivation type. Activities of these enzymes were higher in submerged than in solid-state cultivation. Oak sawdust induced the highest activities of Mn-dependent (5545.5 U L−1) and Mn-independent peroxidases (5810.0 U L−1), and wheat straw stimulated laccase activity (11007.0 U L−1). The isoelectric focusing profiles of enzymes and extent of lignocellulose degradation were affected by plant residue as well as type and period of cultivation. Submerged cultivation induced the synthesis of a higher number of enzyme isoforms and the maximum levels of lignin, hemicellulose and cellulose degradation (40.9%, 32.7% and 27.4%) were reached during this oak sawdust fermentation. However, selectivity in fiber mineralisations was the highest during solid-state fermentation of wheat straw, which is important for possible application in various biotechnological processes that require accessible cellulose, such as production of more digestible feed, paper pulp and bioethanol. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/5455 | ISSN: | 0964-8305 | DOI: | 10.1016/j.ibiod.2016.05.024 |
Appears in Collections: | Journal Article |
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