Honors College Theses

Publication Date



Chemistry (B.S.)

Document Type and Release Option

Thesis (open access)

Faculty Mentor

Brian Koehler


In this experiment, the contribution of a standard production method for biofuels on their oxidative stability was investigated. Peroxide values were measured at different steps of the production process of Brassica carinata and peanut-based biofuels. The washing and drying steps in this production method showed significant increases in peroxide values for both biofuels and was identified as a major contributor of biofuel oxidation. Further analyses of the physical and thermal properties showed a more pronounced affect in the biofuel from Bassica carinata, and indicated an unusual composition much higher in saturated fatty acids much longer than those found in peanut. This unusual difference in the naturally produced fatty acids may indicate the need for extra care in the handling and refining of Carinata-based biofuels.