Physicochemical properties and bioactive compounds of selected seed oils.
The physicochemical properties and chemical composition of oil extracted from five varieties of plant seeds (bittermelon, Kalahari melon, kenaf, pumpkin and roselle seeds) were examined by established methods. The thermal properties of extracted oils by differential scanning calorimetry were also...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English English |
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Elsevier
2009
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| Online Access: | http://psasir.upm.edu.my/id/eprint/7740/ http://psasir.upm.edu.my/id/eprint/7740/1/Physicochemical%20properties%20and%20bioactive%20compounds%20of%20selected%20seed%20oils.pdf |
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| author | Nyam, Kar Lin Tan, Chin Ping Lai, Oi Ming Long, Kamariah Che Man, Yaakob |
| author_facet | Nyam, Kar Lin Tan, Chin Ping Lai, Oi Ming Long, Kamariah Che Man, Yaakob |
| author_sort | Nyam, Kar Lin |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | The physicochemical properties and chemical composition of oil extracted from five varieties of plant
seeds (bittermelon, Kalahari melon, kenaf, pumpkin and roselle seeds) were examined by established
methods. The thermal properties of extracted oils by differential scanning calorimetry were also evaluated.
Sensorial profiles of these seed oils were defined through the CieLab (L*, a*, b*) colour. Most of the
quality indices and fatty acid compositions showed significant (P < 0.05) variations among the extracted
oils. Physicochemical properties of the oils extracted were iodine value, 86.0–125.0 g I2/100 g oil;
saponification value, 171.0–190.7 mg of KOH/g of oil; acid value, 1.1–12.9 mg of KOH/g of oil, free fatty
acid, 0.6–6.5 g/100 g of oil, and peroxide value 1.5–6.5 meq of O2/kg of oil. Palmitic, oleic and linoleic
acids were the major fatty acids in all of the extracted seed oils except for bittermelon, where eleostearic
acid was the major fatty acid. Gallic, protocatechuic, p-hydroxybenzoic, vanillic, caffeic, syringic, pcoumaric
and ferulic acids were identified in the extracted plant oils. Among these, vanillic acid was
predominant in all extracted oils. The oils were rich in tocopherols with g-tocopherol as the major
components in all oil samples. Among the phytosterols, sitosterol was the major phytosterol extracted
from the five plant seed oils. The seeds of these plants contain a great number of valuable minor
compounds, which have a potential high value as food and for production of non-food products. |
| first_indexed | 2025-11-15T07:31:11Z |
| format | Article |
| id | upm-7740 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T07:31:11Z |
| publishDate | 2009 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-77402015-12-18T07:47:37Z http://psasir.upm.edu.my/id/eprint/7740/ Physicochemical properties and bioactive compounds of selected seed oils. Nyam, Kar Lin Tan, Chin Ping Lai, Oi Ming Long, Kamariah Che Man, Yaakob The physicochemical properties and chemical composition of oil extracted from five varieties of plant seeds (bittermelon, Kalahari melon, kenaf, pumpkin and roselle seeds) were examined by established methods. The thermal properties of extracted oils by differential scanning calorimetry were also evaluated. Sensorial profiles of these seed oils were defined through the CieLab (L*, a*, b*) colour. Most of the quality indices and fatty acid compositions showed significant (P < 0.05) variations among the extracted oils. Physicochemical properties of the oils extracted were iodine value, 86.0–125.0 g I2/100 g oil; saponification value, 171.0–190.7 mg of KOH/g of oil; acid value, 1.1–12.9 mg of KOH/g of oil, free fatty acid, 0.6–6.5 g/100 g of oil, and peroxide value 1.5–6.5 meq of O2/kg of oil. Palmitic, oleic and linoleic acids were the major fatty acids in all of the extracted seed oils except for bittermelon, where eleostearic acid was the major fatty acid. Gallic, protocatechuic, p-hydroxybenzoic, vanillic, caffeic, syringic, pcoumaric and ferulic acids were identified in the extracted plant oils. Among these, vanillic acid was predominant in all extracted oils. The oils were rich in tocopherols with g-tocopherol as the major components in all oil samples. Among the phytosterols, sitosterol was the major phytosterol extracted from the five plant seed oils. The seeds of these plants contain a great number of valuable minor compounds, which have a potential high value as food and for production of non-food products. Elsevier 2009 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7740/1/Physicochemical%20properties%20and%20bioactive%20compounds%20of%20selected%20seed%20oils.pdf Nyam, Kar Lin and Tan, Chin Ping and Lai, Oi Ming and Long, Kamariah and Che Man, Yaakob (2009) Physicochemical properties and bioactive compounds of selected seed oils. Food Science and Technology, 42 (8). pp. 1396-1403. ISSN 0023-6438 http://dx.doi.org/10.1016/j.lwt.2009.03.006 10.1016/j.lwt.2009.03.006 English |
| spellingShingle | Nyam, Kar Lin Tan, Chin Ping Lai, Oi Ming Long, Kamariah Che Man, Yaakob Physicochemical properties and bioactive compounds of selected seed oils. |
| title | Physicochemical properties and bioactive compounds
of selected seed oils. |
| title_full | Physicochemical properties and bioactive compounds
of selected seed oils. |
| title_fullStr | Physicochemical properties and bioactive compounds
of selected seed oils. |
| title_full_unstemmed | Physicochemical properties and bioactive compounds
of selected seed oils. |
| title_short | Physicochemical properties and bioactive compounds
of selected seed oils. |
| title_sort | physicochemical properties and bioactive compounds
of selected seed oils. |
| url | http://psasir.upm.edu.my/id/eprint/7740/ http://psasir.upm.edu.my/id/eprint/7740/ http://psasir.upm.edu.my/id/eprint/7740/ http://psasir.upm.edu.my/id/eprint/7740/1/Physicochemical%20properties%20and%20bioactive%20compounds%20of%20selected%20seed%20oils.pdf |