Basic Study on the Decayed Behavior of Waste Woody Samples Caused by Three White-Rot Fungi

Abstract

In this study, we investigated the decayed behavior of waste woody samples caused by three kinds of white-rot fungi known as Coriolus consors, Coriolus hirsutus and Ischnoderma resinosum, which were selected to prepare and develop the decayed woody samples from original woody biomasses. After 8 weeks of decaying, the weights of all decayed woody samples had decreased. From the results of analysis of the major woody holocellulose and lignin, the same ratios of weight decrement in all decayed woody samples were found when compared with their original woody sample. It seemed that these components had degraded simultaneously. The crystallinities of woody samples had increased even though woody samples were decayed. It was thought that the amorphous parts of cellulose and hemicellulose were decomposed preferentially. We tried to use these decayed woody samples as samples for the liquefaction experiment. It is observed that the decayed woody samples may be liquefied to be the same as their original woody samples basing on the molecular weight distribution, chemical structure and other chemical parameters of the liquefied contents.

Decayed Woody Material From Mushroom Cultivation: Characterization of Liquefaction

“…The woody samples which decayed by means of brownrot fungus (one of the three categories of wood-rot fungi) were liquefied better than the original woody samples, because of a relatively large amount of lignin following the decomposition of cellulose and the destruction of the crystallinities of cellulose [12]. Additionally, in previous work, the woody samples were decayed by white-rot fungus, and weight loss and morphologic changes were measured and used to experiment with liquefaction, which indicated that the decayed wood could become liquefied in the same way as non-decayed wood [13]. Since there was less information about white-rot fungus and the decayed woody materials from mushroom cultivation, this study paid greater attention to conducting the liquefied experiment with them and analysing the components.…”

Wood-Based Epoxy Resin's Synthesis Using Decayed Woody Material from Mushroom Cultivation

“…However, few researchers have used decayed wood to produce epoxy resin to find out an alternate and sustainable way to make good use of decayed wood. We studied the woody samples decayed by white-rot fungus and liquefied successfully [7]. Subsequently, the liquefaction of the woody material from mushroom cultivation was successful [8].…”