title: Integration of Shiitake cultivation and solid-state anaerobic digestion for utilization of woody biomass.
abstract: Pretreatment technologies that can not only reduce the recalcitrance of woody biomass but also achieve a high benefit-cost ratio are desirable for bioenergy production from woody biomass. In this study, an integrated process was proposed and conducted by pretreating woodchips via Shiitake cultivation for improved methane yield during solid-state anaerobic digestion (SS-AD), and simultaneously producing mushrooms as a high-value co-product. Shiitake cultivation using woodchips as the main substrate ingredient obtained mushroom yields comparable to those using a commercial substrate. Enzymatic digestibility and cumulative methane yields (133-160 L kg(-1)VS during 62 days of SS-AD) of pretreated substrates (spent mushroom substrate) were at least 1.5 times as high as those of untreated woodchips. Compared to a sole SS-AD process, the integrated Shiitake cultivation/SS-AD process increased methane production and solid waste reduction per kilogram of woodchips by about 1.5 and 8 times, respectively.
authors: Department of Food, Agricultural and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096, USA; College of Natural Resources and Environment, South China Agricultural University, Guangzhou, Guangdong 510640, China.
authors: Yunqin
authors: Y
authors: Lin
authors: Department of Food, Agricultural and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096, USA.
authors: Xumeng
authors: X
authors: Ge
authors: Department of Food, Agricultural and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096, USA.
authors: Zhe
authors: Z
authors: Liu
authors: Department of Food, Agricultural and Biological Engineering, The Ohio State University/Ohio Agricultural Research and Development Center, 1680 Madison Ave., Wooster, OH 44691-4096, USA. Electronic address: li.851@osu.edu.
authors: Yebo
authors: Y
authors: Li
mesh_terms: D000693:Anaerobiosis; D056804:Biofuels; D018533:Biomass; D002482:Cellulose / Q000378:metabolism; D008031:Lignin / Q000378:metabolism; D008697:Methane / Q000378:metabolism; D011134:Polysaccharides / Q000378:metabolism; D020942:Shiitake Mushrooms / Q000254:growth & development*; D018505:Waste Management / Q000379:methods; D014866:Waste Products; D014934:Wood / Q000737:chemistry
chemical_list: D056804:Biofuels; D011134:Polysaccharides; D014866:Waste Products; C036909:lignocellulose; C007916:hemicellulose; D002482:Cellulose; D008031:Lignin; D008697:Methane
keywords: Biogas; Mushroom; Pretreatment; Solid-state anaerobic digestion; Woodchips