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Volume 16 Part 1 Article 32
Year 2004
Title: Cultivation of Mushrooms on Polyurethane Foam Prepared from Liquefied Sugi Bark
Authors: T. Ashitani, U. Tateishi, K. Sakai and S. Ohga

Abstract:

Sugi (Cryptomeria japonica) bark was liquefied using PEG-400 and sodium bisulfite at 250°C. Polyurethane foams (PUF) were prepared from the resultant liquefied bark (LB) and polymeric methylene diphenylene diisocyanate. The PUF prepared from sugi bark had higher water absorption than the PUF prepared without LB. Cultivation of Cordyceps and Isaria spp. was carried out on the PUF medium containing yeast extract and glucose. Mycelial growth of C. sinensis, C. nutans, I. atypicola and I. japonica was observed on the PUF medium prepared from the LB. Bio-degradability of the PUF was investigated by differential scanning colorimetry and infrared analysis, and the results indicated that the urethane linkage was decomposed during mushroom cultivation.

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