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Ozone treatment of spent medium from Auricularia polytricha cultivation for enzymatic saccharification and subsequent ethanol production |
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| Authors: | Denny Irawati Yuya Takashima Chisato Ueda J P Gentur Sutapa Sri Nugroho Marsoem Futoshi Ishiguri Kazuya Iizuka Nobuo Yoshizawa Shinso Yokota |
| Institution: | 1. Faculty of Forestry, Gadjah Mada University, Yogyakarta, 55281, Indonesia 2. Faculty of Agriculture, Utsunomiya University, Utsunomiya, 321-8505, Japan 3. United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-8509, Japan |
| Abstract: | We examined the enzymatic saccharification and ethanol fermentation of the spent media (SMs) from Auricularia polytricha cultivation using wood meals of Falcataria moluccana, Shorea sp., and Tectona grandis. Although the hydrolysis weight decrease and reducing sugar yield were higher in SM of F. moluccana, the ethanol yield was higher in SM of Shorea sp. Ozone treatment of SM further increased the hydrolysis weight decrease, reducing sugar, and ethanol yields in Shorea sp. These results indicate that SM of A. polytricha is a suitable biomass material to produce fermentable sugars for ethanol production, and that ozone treatment is a suitable method for increasing the ethanol yield. |
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