Studies on improving the nutritive value of rice straw by fermentation with Lyophyllum decastes, 1. Cultural condition of cellulase production and feeding value under fermentation periods
1988
Hong, J.S. | Kim, D.H. | Kim, M.K. | Lee, K.R. | Kim, Y.S. | Kim, M.S. (Chonbuk National Univ., Chonju (Korea R.). Dept. of Food Science and Technology)
For the preparation of fermented feed with Lyophyllum decastes, optimum cultural conditions for the production of cellulase were 30 deg C, pH 6.0-70% moisture content and the cultural period of 15 days. Among the submaterial added, 30-40% of rice bran and 0.72% of (NH4)2HPO4 were effective for the cellulase production and its production increased when rice straw was treated with 4% alkaline peroxides. Solid state fermentation of rice straw with Lyophyllum decastes for 40 days removed 19.9% of lignin, and increased the total nitrogen content to 1.6% from 1.1%. As the fermentation proceeded, the in vitro dry matter digestibility of fermented feed was increased and it increased 21.1% after 35 days
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