Fungal upgrading of wheat straw for straw-thermoplastics production
- 77 Downloads
Combining biologic pretreatment with storage is an innovative approach for improving feedstock characteristics and cost, but the magnitude of responses of such systems to upsets is unknown. Unsterile wheat straw stems were upgraded for 12 wk with Pleurotus ostreatus at constant temperature to estimate the variation in final compositions with variations in initial moisture and inoculum. Degradation rates and conversions increased with both moisture and inoculum. A regression analysis indicated that system performance was quite stable with respect to inoculum and moisture content after 6 wk of treatment. Scale-up by 150× indicated that system stability and final straw composition are sensitive to inoculum source, history, and inoculation method. Comparative testing of straw-thermoplastic composites produced from upgraded stems is under way.
Index EntriesFungal upgrading engineered storage biological preprocessing Pleurotus ostreatus straw composite
Unable to display preview. Download preview PDF.
- 1.USDA NASS. (2001), United States Department of Agriculture, National Agricultural Statistics Service, see Website: http://www.usda.gov/nass/.Google Scholar
- 2.Biomass Technical Advisory Committee. (2002), Vision for Bioenergy & Biobased Products in the United States, United States Department of Energy, Office of the Biomass Program, Washington, DC.Google Scholar
- 3.Biomass Technical Advisory Committee. (2002), Roadmap for Biomass Technologies in the United States, United States Department of Energy, Office of the Biomass Program, Washington, DC.Google Scholar
- 8.Lindfelser, L. A., Detroy, R. W., Ramstack, J. M., and Worden, K. A. (1979), Dev. Ind. Microbiol. 20, 541–551.Google Scholar
- 10.Aust, S. D. (2002), Personal communication, Biotechnology Center, Utah State University, Logan, UT.Google Scholar
- 13.ASTM (1998), Annual Book of ASTM Standards, ASTM Method D 790-97, American Society for Testing and Materials, Committee D20 on Plastics, Subcommittee D20.10 on Mechanical Properties, West Conshohocken, PA.Google Scholar
- 14.ASTM (1999), Annual Book of ASTM Standards, ASTM Method D 1037-99, American Society for Testing and Materials, Committee D7 on Wood, Subcommittee D07.03 on Panel Products, West Conshohocken, PA.Google Scholar
- 15.Thompson, D. N., Foust, T. D., Hess, J. R., Hoskinson, R. L., Houghton, T. P., Lacey, J. A., and Shaw, P. G., (2002), in: Proceedings of Bioenergy 2002–Bioenergy for the Environment, Omnipress, Madison, WI, paper 2013.Google Scholar
- 17.Steinegger, D. H. and Janssen, D. E. (1993), Garden Compost, NebGuide G86-810-A, Cooperative Extension, Institute of Agriculture and Natural Resources, University of Nebraska-Lincoln, Lincoln, NE.Google Scholar