Please use this identifier to cite or link to this item: https://biore.bio.bg.ac.rs/handle/123456789/4225
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
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