Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production
Achieving shell-free kernel recovery from Jatropha fruits is important to improve oil yield and oil quality during oil extraction in biodiesel production. A shelling process with two stages of cracking and separation to remove the shells completely and husks partially was designed. Both stages used...
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| Format: | Article |
| Language: | English |
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Elsevier
2014
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| Online Access: | http://psasir.upm.edu.my/id/eprint/37051/ http://psasir.upm.edu.my/id/eprint/37051/1/Development%20and%20testing%20of%20a%20Jatropha%20fruit%20shelling%20process%20for%20shell.pdf |
| _version_ | 1848848504201412608 |
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| author | Lim, Bo Yuan Shamsudin, Rosnah Yunus, Robiah |
| author_facet | Lim, Bo Yuan Shamsudin, Rosnah Yunus, Robiah |
| author_sort | Lim, Bo Yuan |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Achieving shell-free kernel recovery from Jatropha fruits is important to improve oil yield and oil quality during oil extraction in biodiesel production. A shelling process with two stages of cracking and separation to remove the shells completely and husks partially was designed. Both stages used double-level cracking rollers and a blower with ducting as a separation unit. For the first, the performance was evaluated using five different roller clearances (9.5 mm, 10.0 mm, 10.5 mm, 11.0 mm and 11.5 mm) with a combination of five blower air speeds (8.5 ± 0.5 m s−1, 9.0 ± 0.6 m s−1, 9.5 ± 0.5 m s−1, 10.0 ± 0.4 m s−1 and 10.5 ± 0.5 m s−1). A roller clearance of 10.5 mm and air speed of 10.0 ± 0.4 m s−1 were selected as the optimal conditions with the highest separation efficiency between kernels and shells at 94.59%. The shells and husks achieved 95.88% and 12.20% removal respectively while kernel recovery achieved 98.65%. For the second stage, the performance was evaluated using five different roller clearances (5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm and 7.0 mm) with a combination of five blower air speeds (6.5 ± 0.4 m s−1, 7.0 ± 0.2 m s−1, 7.5 ± 0.4 m s−1, 8.0 ± 0.2 m s−1 and 8.5 ± 0.5 m s−1). At the optimal conditions, with a roller clearance of 6.0 mm and air speed of 7.5 ± 0.4 m s−1, the maximum separation efficiency was 97.69%. Total shell and husk removal achieved for the stages were 100.00% and 45.46% respectively. A total of 2.40% kernels were lost. |
| first_indexed | 2025-11-15T09:35:33Z |
| format | Article |
| id | upm-37051 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T09:35:33Z |
| publishDate | 2014 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-370512015-10-01T02:11:18Z http://psasir.upm.edu.my/id/eprint/37051/ Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production Lim, Bo Yuan Shamsudin, Rosnah Yunus, Robiah Achieving shell-free kernel recovery from Jatropha fruits is important to improve oil yield and oil quality during oil extraction in biodiesel production. A shelling process with two stages of cracking and separation to remove the shells completely and husks partially was designed. Both stages used double-level cracking rollers and a blower with ducting as a separation unit. For the first, the performance was evaluated using five different roller clearances (9.5 mm, 10.0 mm, 10.5 mm, 11.0 mm and 11.5 mm) with a combination of five blower air speeds (8.5 ± 0.5 m s−1, 9.0 ± 0.6 m s−1, 9.5 ± 0.5 m s−1, 10.0 ± 0.4 m s−1 and 10.5 ± 0.5 m s−1). A roller clearance of 10.5 mm and air speed of 10.0 ± 0.4 m s−1 were selected as the optimal conditions with the highest separation efficiency between kernels and shells at 94.59%. The shells and husks achieved 95.88% and 12.20% removal respectively while kernel recovery achieved 98.65%. For the second stage, the performance was evaluated using five different roller clearances (5.0 mm, 5.5 mm, 6.0 mm, 6.5 mm and 7.0 mm) with a combination of five blower air speeds (6.5 ± 0.4 m s−1, 7.0 ± 0.2 m s−1, 7.5 ± 0.4 m s−1, 8.0 ± 0.2 m s−1 and 8.5 ± 0.5 m s−1). At the optimal conditions, with a roller clearance of 6.0 mm and air speed of 7.5 ± 0.4 m s−1, the maximum separation efficiency was 97.69%. Total shell and husk removal achieved for the stages were 100.00% and 45.46% respectively. A total of 2.40% kernels were lost. Elsevier 2014-05 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/37051/1/Development%20and%20testing%20of%20a%20Jatropha%20fruit%20shelling%20process%20for%20shell.pdf Lim, Bo Yuan and Shamsudin, Rosnah and Yunus, Robiah (2014) Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production. Biosystems Engineering, 121. pp. 46-55. ISSN 1537-5110; ESSN: 1537-5129 10.1016/j.biosystemseng.2014.02.004 |
| spellingShingle | Lim, Bo Yuan Shamsudin, Rosnah Yunus, Robiah Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production |
| title | Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production |
| title_full | Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production |
| title_fullStr | Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production |
| title_full_unstemmed | Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production |
| title_short | Development and testing of a Jatropha fruit shelling process for shell-free kernel recovery in biodiesel production |
| title_sort | development and testing of a jatropha fruit shelling process for shell-free kernel recovery in biodiesel production |
| url | http://psasir.upm.edu.my/id/eprint/37051/ http://psasir.upm.edu.my/id/eprint/37051/ http://psasir.upm.edu.my/id/eprint/37051/1/Development%20and%20testing%20of%20a%20Jatropha%20fruit%20shelling%20process%20for%20shell.pdf |