Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol
Rhazya stricta (R. stricta) known as Harmal is widely distributed in Saudi Arabia and throughout the Middle East. It is used as a medicinal plant in traditional cultures and the seeds are a source of unsaturated oil. In the present study, tocol (tocopherol and tocotrienol), triacylglycerol, and fatt...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier BV
2016
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/53782/ http://psasir.upm.edu.my/id/eprint/53782/1/Seed%20oil%20from%20Harmal%20%28Rhazya%20stricta%20Decne%29%20grown%20in%20Riyadh%20%28Saudi%20Arabia%29.pdf |
| _version_ | 1848852375064805376 |
|---|---|
| author | Nehdi, Imededdine Arbi Mohamed Sbihi, Hassen Tan, Chin Ping Al-Resayes, Saud Ibrahim |
| author_facet | Nehdi, Imededdine Arbi Mohamed Sbihi, Hassen Tan, Chin Ping Al-Resayes, Saud Ibrahim |
| author_sort | Nehdi, Imededdine Arbi |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Rhazya stricta (R. stricta) known as Harmal is widely distributed in Saudi Arabia and throughout the Middle East. It is used as a medicinal plant in traditional cultures and the seeds are a source of unsaturated oil. In the present study, tocol (tocopherol and tocotrienol), triacylglycerol, and fatty acid compositions, pigment content, thermal behavior, and various physicochemical properties of R. stricta oil were characterized to determine the potential uses of this seed oil. Our results indicate that the oil is a rich source of bioactive molecules, including δ-tocopherol (896 mg/100 g), γ-tocopherol (148 mg/100 g) and carotenoids (15.67 mg/kg). The oil content of the seeds was 13.68% and the triacylglycerols mainly consisted of linoleic acid (59.03%), and oleic acid (27.01%). The major triacylglycerols were trilinoleate, dilinoleate and monolinoleate. The ratio of unsaturated to saturated fatty acids (UFA/SFA) in the oil was high (9.20). Additionally, the oil showed a high degree of thermal stability and a low melting point of approximately −25 °C. These data indicate that R. stricta seed oil, which is low in saturated fats and rich in bioactive compounds, is potentially useful in food and pharmaceutical applications. |
| first_indexed | 2025-11-15T10:37:04Z |
| format | Article |
| id | upm-53782 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T10:37:04Z |
| publishDate | 2016 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-537822018-02-01T03:34:49Z http://psasir.upm.edu.my/id/eprint/53782/ Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol Nehdi, Imededdine Arbi Mohamed Sbihi, Hassen Tan, Chin Ping Al-Resayes, Saud Ibrahim Rhazya stricta (R. stricta) known as Harmal is widely distributed in Saudi Arabia and throughout the Middle East. It is used as a medicinal plant in traditional cultures and the seeds are a source of unsaturated oil. In the present study, tocol (tocopherol and tocotrienol), triacylglycerol, and fatty acid compositions, pigment content, thermal behavior, and various physicochemical properties of R. stricta oil were characterized to determine the potential uses of this seed oil. Our results indicate that the oil is a rich source of bioactive molecules, including δ-tocopherol (896 mg/100 g), γ-tocopherol (148 mg/100 g) and carotenoids (15.67 mg/kg). The oil content of the seeds was 13.68% and the triacylglycerols mainly consisted of linoleic acid (59.03%), and oleic acid (27.01%). The major triacylglycerols were trilinoleate, dilinoleate and monolinoleate. The ratio of unsaturated to saturated fatty acids (UFA/SFA) in the oil was high (9.20). Additionally, the oil showed a high degree of thermal stability and a low melting point of approximately −25 °C. These data indicate that R. stricta seed oil, which is low in saturated fats and rich in bioactive compounds, is potentially useful in food and pharmaceutical applications. Elsevier BV 2016-01 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/53782/1/Seed%20oil%20from%20Harmal%20%28Rhazya%20stricta%20Decne%29%20grown%20in%20Riyadh%20%28Saudi%20Arabia%29.pdf Nehdi, Imededdine Arbi and Mohamed Sbihi, Hassen and Tan, Chin Ping and Al-Resayes, Saud Ibrahim (2016) Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol. Journal of Saudi Chemical Society, 20 (1). pp. 107-113. ISSN 1319-6103; ESSN: 2212-4640 https://www.sciencedirect.com/science/article/pii/S1319610314001331 10.1016/j.jscs.2014.09.005 |
| spellingShingle | Nehdi, Imededdine Arbi Mohamed Sbihi, Hassen Tan, Chin Ping Al-Resayes, Saud Ibrahim Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol |
| title | Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol |
| title_full | Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol |
| title_fullStr | Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol |
| title_full_unstemmed | Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol |
| title_short | Seed oil from Harmal (Rhazya stricta Decne) grown in Riyadh (Saudi Arabia): a potential source of δ-tocopherol |
| title_sort | seed oil from harmal (rhazya stricta decne) grown in riyadh (saudi arabia): a potential source of δ-tocopherol |
| url | http://psasir.upm.edu.my/id/eprint/53782/ http://psasir.upm.edu.my/id/eprint/53782/ http://psasir.upm.edu.my/id/eprint/53782/ http://psasir.upm.edu.my/id/eprint/53782/1/Seed%20oil%20from%20Harmal%20%28Rhazya%20stricta%20Decne%29%20grown%20in%20Riyadh%20%28Saudi%20Arabia%29.pdf |