International Journal of Earth & Environmental Sciences Volume 4 (2019), Article ID 4:IJEES-161, 4 pages
Research Article
Investigations of Non-Edible Seeds Oils in Comparison with Soybean Benchmark for Production of Biodiesel

Kenneth C. Okafor1, Musa B. Danjaji1, Martin Figura1 and Valerie Nwajeyi2*

1Department of Civil & Mechanical Engineering Technology & Nuclear Engineering, South Carolina State University, Orangeburg, SC 29117, USA
2University of Michigan, 701 Tappan Street, Ann Arbor, MI 48109, USA
Valerie Nwajeyi, University of Michigan, Ann Arbor, MI 48109, USA; E-mail:
27 November 2018; 09 January 2019; 11 January 2019
Okafor KC, Danjaji MB, Figura M, Nwajeyi V (2019) Investigations of Non-Edible Seeds Oils in Comparison with Soybean Benchmark for Production of Biodiesel. Int J Earth Environ Sci 4: 161. doi:
This material is based upon work that is supported by the National Institute of Food and Agriculture, U. S. Department of Agriculture, Evans-Allen project number SCX-312-05-15.


The desire to reduce green-house gases due to excessive use of fossil fuels for energy production is a major stimulant for alternative clean sources of energy. One of these alternative sources is biodiesel with vegetable oil as a component. However, soybean oil, which is a major food condiment is the major vegetable oil used in the USA. The present study seeks to explore suitable and sustainable sources of oil from non-edible seed plants that are indigenous to the state of South Carolina.

Seed plants were obtained from the wild or purchased. Comparisons of the yields and other physical and chemical properties were determined and compared to soybean oil as the benchmark.

All the seeds in this study underwent the same processes in oil extraction and determination of their properties. The physical and chemical properties determined for all seeds were the oil yield, density and the iodine value.

Most of the oil samples in this study have characteristics that are comparable to those of the Soybean which is the benchmark sample. For example, most of the oil samples produced yields greater than 7% the yield for the soybean oil. It can also be inferred from this study that any one of the comparable seed plants mentioned above can serve as an alternative feedstock to Soybean in the commercial production of Fatty Acid Methyl Esters (FAME).