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Title: | Obtaining cellulose-available raw materials by pretreatment of common agro-forestry residues with Pleurotus spp. | Authors: | Galić, Milica Stajić, Mirjana Vukojević, Jelena Ćilerdžić, Jasmina. |
Keywords: | Delignification;Laccase;Lignocellulose;Mn-oxidizing peroxidases;White-rot fungi | Issue Date: | 22-Sep-2021 | Rank: | M21 | Publisher: | National Library of Medicine | Journal: | Frontiers in Bioengineering and Biotechnology | Volume: | 9 | Start page: | 720473 | Abstract: | he goals of the present study were to characterize the profile of ligninolytic enzymes in five Pleurotus species and determine their ability to delignify eight common agro-forestry residues. Generally, corn stalks were the optimal inducer of Mn-dependent peroxidase activity, but the activity peak was noted after wheat straw fermentation by P. eryngii (3066.92 U/L). P. florida was the best producer of versatile peroxidase, especially on wheat straw (3028.41 U/L), while apple sawdust induced the highest level of laccase activity in P. ostreatus (49601.82 U/L). Efficiency of the studied enzymes was expressed in terms of substrate dry matter loss, which was more substrate-than species-dependent. Reduction of substrate dry mass ranged between 24.83% in wheat straw and 8.83% in plum sawdust as a result of fermentation with P. florida and P. pulmonarius, respectively. The extent of delignification of the studied substrates was different, ranging from 51.97% after wheat straw fermentation by P. pulmonarius to 4.18% in grapevine sawdust fermented by P. ostreatus. P. pulmonarius was also characterized by the highest cellulose enrichment (6.54) and P. ostreatus by very low one (1.55). The tested biomass is a highly abundant but underutilized source of numerous value-added products, and a cocktail of ligninolytic enzymes of Pleurotus spp. could be useful for its environmentally and economically friendly transformation. |
URI: | https://biore.bio.bg.ac.rs/handle/123456789/4225 | DOI: | 10.3389/fbioe.2021.720473 |
Appears in Collections: | Journal Article |
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