Production of xylooligosaccharides from enzymatic hydrolysis of xylan by white-rot fungi Pleurotus - DOI: 10.4025/actascitechnol.v32i1.7648

Cristiano Ragagnin de Menezes, Ísis Serrano Silva, Érika Cristina Pavarina, Andréia Fonseca de Faria, Elisângela Franciscon, Lucia Regina Durrant

Resumo


Hemicellulose consists of non-cellulosic polysaccharides, with xylans and mannans as their main examples. In nature, xylan can be first degraded to xylooligosaccharides and finally to xylose by certain microorganisms. White-rot fungi basidiomycetes Pleurotus sp. BCCB068 and Pleurotus tailandia were used to degrade oat-spelts xylan under submerged fermentation for a period of 40 days. The study obtained activities of endo-1,4-ß-xylanase and ß-xylosidase and determination of xylan products by degradation. The fungi reached significant levels of xylan degradation by Pleurotus sp. BCCB068 (75.1%) and P. tailandia (73.4%), following formations of xylooligosaccharides and sugar monomers. These Pleurotus strains proved to be a feasible alternative for biotechnological processes related to degradation of hemicellulose sources.

Palavras-chave


biodegradation; Pleurotus; xylan; hemicellulose; xylooligosaccharides

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DOI: http://dx.doi.org/10.4025/actascitechnol.v32i1.7648





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