Quantitative changes in the biochemical composition of lignocellulosic residues during the vegetative growth of Lentinula edodes

Brazilian Journal of Microbiology

Rigoberto Gaitán-hernández²  Martín Esqueda¹  Aldo Gutiérrez¹  Miguel Beltrán-garcía¹ 

[1] ,Instituto de Ecología A.C.Xalapa Veracruz ,México

关键词: agricultural residues;    vegetative growth;    chemical properties;    shiitake mushroom;   

DOI  :  10.1590/S1517-83822011000100004

来源: SciELO

【 摘 要 】

The chemical changes in barley-straw (BS), wheat-straw (WS) and vineyard-pruning (VP) substrates were determined during colonization of Lentinula edodes mycelia (during primordium development) in solid state fermentation. Primordia appeared 39-50 days after inoculation. VP appeared to promote early sporophore initiation. The concentration of hemicellulose in BS and VP decreased gradually from 25.5% to 15.6% and from 15.8% to 12.3%, respectively. However in WS, hemicellulose decreased from 27.2% to 9.5%. Lignin broke down continuously in BS and WS, with 31.8% and 34.4% degradation, respectively; higher than that of cellulose. During the pinning stage, the C:N ratio decreased in VP and BS, but not in WS. On all substrates the phenols decreased notably throughout the first week of mycelial growth. The time elapsed (days) to pinning was positively correlated with cellulose content (r=0.89), total sugar (r=0.85) and inversely correlated to lignin (r=-1.00) and phenol content (r=-0.55).

【 授权许可】

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