title: Comparison between ensilage and fungal pretreatment for storage of giant reed and subsequent methane production.
abstract: Ensilage and fungal pretreatment of giant reed harvested from August through December were compared based on their effects on feedstock preservation, glucose yield, and subsequent methane production via anaerobic digestion (AD). Compared to fungal pretreatment, ensilage obtained lower total solids (<1.2%) and cellulose (<3.5%) losses, and comparable hemicellulose degradation, except for giant reed harvested in August. Ensilage increased glucose and methane yields by 7-15% and 4-14%, respectively, for giant reed harvested from August through December. Fungal pretreatment failed for giant reed harvested in August and October with reduced glucose yields, and was effective for that harvested in November and December, with about 20% increases in glucose yield. However, hydrocarbon losses during fungal pretreatment offset the increased glucose yield, resulting in decreased methane yields by AD. In summary, ensilage was found to be more suitable than fungal pretreatment for giant reed storage and its methane production via AD.
authors.affiliation: 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; Key Laboratory of Clean Utilization Technology for Renewable Energy in Ministry of Agriculture, College of Engineering, China Agricultural University, 100083 Beijing, PR China.
authors.forename: Shan
authors.initials: S
authors.lastname: Liu
authors.affiliation: 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.forename: Fuqing
authors.initials: F
authors.lastname: Xu
authors.affiliation: 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.forename: Xumeng
authors.initials: X
authors.lastname: Ge
authors.affiliation: 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.forename: Yebo
authors.initials: Y
authors.lastname: Li
mesh_terms: D000693:Anaerobiosis; D018533:Biomass; D055453:Coriolaceae / Q000378:metabolism*; D005947:Glucose / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D008697:Methane / Q000096:biosynthesis*; D009930:Organic Chemicals / Q000032:analysis; D006109:Poaceae / Q000378:metabolism*; D012037:Refuse Disposal / Q000379:methods*; D012820:Silage / Q000382:microbiology*
chemical_list: D009930:Organic Chemicals; D005947:Glucose; D008697:Methane
keywords: Anaerobic digestion; Ensilage; Fungal pretreatment; Giant reed; Wet storage