- BIUSTRE Home
- →
- Electronic Theses and Dissertations
- →
- Faculty of Sciences
- →
- View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.
| dc.contributor.supervisor | Gessesse, Amare | |
| dc.contributor.supervisor | Rantong, Gaolathe | |
| dc.contributor.author | Masisi, Keletso Gorata | |
| dc.date.accessioned | 2023-04-04T19:02:20Z | |
| dc.date.available | 2023-04-04T19:02:20Z | |
| dc.date.issued | 2022-03 | |
| dc.identifier.citation | Masisi, K.G (2022) Baobab (adansonia digitata) seed as a source of biodiesel and protein hydrolysates: optimization of production processes and characterization of the products , Master's Thesis, Botswana International University of Science and Technology: Palapye. | en_US |
| dc.identifier.uri | http://repository.biust.ac.bw/handle/123456789/552 | |
| dc.description | Thesis (MSc of Science in Biology and Biotechnology)---Botswana International University of Science and Technology, 2022 | en_US |
| dc.description.abstract | Increase in global population places a demand on fuel and protein sources therefore putting a strain on their supply. The demand for fuel products is currently met by increased usage of fossil fuel, a nonrenewable energy source. However, burning of fossil fuel has challenges such as the release of greenhouse gases associated with negative environmental impacts. To overcome these challenges, attention has been given to renewable energy sources as biodiesel, a biofuel that has good potential to replace petroleum diesel. Despite the attractive potential, its production is hindered by different challenges such as the limited supply of feedstocks. Therefore, identification of hitherto unexploited natural resources such as oil bearing plants could overcome this challenge. Adansonia digitata is an under used plant that can be exploited and used as a source of oil for biodiesel production. In this study, A. digitata seed oil was used to produce biodiesel. The resulting biodiesel showed a density of 878 kg/m3 , a viscosity of 4.276 mm2 /s, a cloud point of 5°C, our point of -11°C and an iodine number of 57.9. These values fall within the international standards indicating its usefulness for fuel application. In addition to using the seed oil for biodiesel production, the oil meal was used for the isolation of protein. The functional properties of the seed protein exhibited properties that make it suitable for application in the food industry. The protein has a water holding capacity of 1.29 g/g, water solubility index of 3.25 %, oil holding capacity of 1.14%, foam capacity of 41% and a foam stability of 67%. This indicates the potential usefulness of the seed protein. The protein was also enzymatically hydrolyzed and used for microbiological growth as a peptone. The peptone was able to support the growth of the test microorganisms the same as or better than commercial peptone. Utilization of the protein for food and nonfood application could lower the production cost of biodiesel and help to generate economic benefits to local communities. Therefore, further research leading to the production of new products from A. digitata to better understand the biology of the plant is recommended. | en_US |
| dc.description.sponsorship | Botswana International University of Science and Technology (BIUST) | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Botswana International University of Science and Technology (BIUST) | en_US |
| dc.subject | A. digitata | en_US |
| dc.subject | Energy | en_US |
| dc.subject | Biodiesel | en_US |
| dc.subject | Protein | en_US |
| dc.subject | Pepton | en_US |
| dc.title | Baobab (adansonia digitata) seed as a source of biodiesel and protein hydrolysates: optimization of production processes and characterization of the products | en_US |
| dc.description.level | msc | en_US |
| dc.description.accessibility | unrestricted | en_US |
| dc.description.department | bsb | en_US |
Files in this item
This item appears in the following Collection(s)
-
Faculty of Sciences
This collection is made up of electronic theses and dissertations produced by post graduate students from Faculty of Sciences