Date of Award
Fall 2017
Degree Type
Masters Thesis
Degree Name
Master of Science (MS)
Department
Polymers and High Performance Materials
Committee Chair
Sarah Morgan
Committee Chair Department
Polymers and High Performance Materials
Committee Member 2
James Rawlins
Committee Member 2 Department
Polymers and High Performance Materials
Committee Member 3
Jeffrey Wiggins
Committee Member 3 Department
Polymers and High Performance Materials
Abstract
Pre-fermentation mash fiber and post-distillation stillage fiber were examined and compared using a variety of preparatory techniques to determine the better source for cellulose fiber saccharification. Once screened, dried, and diluted to a 10% solution, mash fiber and stillage fiber were exposed to increasing temperatures for steam explosion techniques as well as increasing acidification techniques. Both underwent enzymatic saccharification to convert the exposed cellulose to glucose and other sugars. Once the optimum steam explosion technique parameters and acidification parameters were determined to be 2.5% sulfuric acid at 127.8°C for 1 hour, a comparison of the saccharification of pre-fermentation mash fiber and post-distillation stillage fiber under these conditions was conducted. While both are capable sources, post-fermentative stillage provides more fiber (64.18%) that shows approximately 6% greater ability of being degraded than the available fiber content in pre-fermentation mash, which was only 60.92% of the original dried sample.
Copyright
2017, Daniel McKee
Recommended Citation
McKee, Daniel, "Comparison Study Between Post-Fermentation Stillage and Pre-Fermentation Mash Utilizing Acidification and Steam Explosion Techniques for Cellulose Saccharification" (2017). Master's Theses. 323.
https://aquila.usm.edu/masters_theses/323