Chase Evertz, Biology
Jenna Mahs, Biology

Abstract: While a number of biodiesel feedstock options are currently being researched, algae are a promising alternative due to relatively high algal oil yields.  The purpose of this study was to analyze algae as a biofeedstock for biodiesel fuel production.  Oil yields from Chlorella vulgaris were determined using enzymatic extraction; a process catalyzed by cellulase from Aspergillus niger.  Reaction conditions, such as pH, temperature, time, and enzyme concentrations, were modified to determine optimum oil yield.  The algal oil recovery from enzymatic extraction was determined by chromatography.  Cost and environmental impact are being analyzed to determine the viability of algal oil as a biodiesel feedstock.

Abstract: Thiophene and thiourea are biologically significant compounds containing organic sulfides. Thiophenes have wide uses in organic chemistry and the pharmaceutical industry. Thiourea is used in production of flame retardants, as a vulcanization accelerator and in many other products and processes. We used infrared spectroscopy and nuclear magnetic resonance to measure the concentration of thiophene and thiourea in different peat samples. From these samples, we can determine the rate at which the compounds breakdown in peat. The results will help determine whether or not various peat samples contain environmentally stable levels of thiols.

Abstract: The Professional Education Department at Bemidji State University offers an Elementary Education Major, which licenses teachers from PreK-8th Grade. One course in this major is ED 3301-Creative Expressions. An assignment in this course was to develop and create a puppet that can be used within a classroom. Our presenters will share their own original puppets as well as those of their classmates.