Determination of iodine value of palm oil by differential scanning calorimetry
Iodine value (IV) is used as a parameter in process control as well as a quality parameter in traded palm oil products. IV measures the number of double bonds in the molecular structure of an oil. To form a double bond, carbon requires more energy (615 kJ/mol) than to form a single bond (350 kJ/mol)...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
AOCS Press
1997
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/35914/ http://psasir.upm.edu.my/id/eprint/35914/1/Determination%20of%20iodine%20value%20of%20palm%20oil%20by%20differential%20scanning%20calorimetry.pdf http://psasir.upm.edu.my/id/eprint/35914/7/J%20Americ%20Oil%20Chem%20Soc%20-%201997%20-%20Haryati%20-%20Determination%20of%20iodine%20value%20of%20palm%20oil%20by%20differential%20scanning%20calorimetry.pdf |
| _version_ | 1848848187304968192 |
|---|---|
| author | H. M. Salim, Tri Haryati Che Man, Yaakob Ali, Asbi Mohd Ghazali, Hasanah Buana, Lalang |
| author_facet | H. M. Salim, Tri Haryati Che Man, Yaakob Ali, Asbi Mohd Ghazali, Hasanah Buana, Lalang |
| author_sort | H. M. Salim, Tri Haryati |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Iodine value (IV) is used as a parameter in process control as well as a quality parameter in traded palm oil products. IV measures the number of double bonds in the molecular structure of an oil. To form a double bond, carbon requires more energy (615 kJ/mol) than to form a single bond (350 kJ/mol). Therefore, the thermal behavior of an oil could reflect its iodine value. This study was conducted to demonstrate the use of a differential scanning calorimeter (DSC) to determine the IV of palm oil and its products as an attempt to reduce the use of chemicals in the analysis. The DSC thermograms of palm oil showed a clear separation of the substances that have low melting points (low-T), consisting of triunsaturated, monosaturated and disaturated triglycerides, from the high ones (high-T), consisting of trisaturated triglycerides. Regression analysis showed that the peak characteristics, namely, area and height of the low-T group and height of the high-T group in the heating thermogram and also the height of the high-T group in the cooling thermogram, can predict the IV of palm oil with R 2 higher than 0.99. This study concludes that DSC can be used to determine the IV of palm oil and its products. |
| first_indexed | 2025-11-15T09:30:31Z |
| format | Article |
| id | upm-35914 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-15T09:30:31Z |
| publishDate | 1997 |
| publisher | AOCS Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-359142024-08-05T23:50:12Z http://psasir.upm.edu.my/id/eprint/35914/ Determination of iodine value of palm oil by differential scanning calorimetry H. M. Salim, Tri Haryati Che Man, Yaakob Ali, Asbi Mohd Ghazali, Hasanah Buana, Lalang Iodine value (IV) is used as a parameter in process control as well as a quality parameter in traded palm oil products. IV measures the number of double bonds in the molecular structure of an oil. To form a double bond, carbon requires more energy (615 kJ/mol) than to form a single bond (350 kJ/mol). Therefore, the thermal behavior of an oil could reflect its iodine value. This study was conducted to demonstrate the use of a differential scanning calorimeter (DSC) to determine the IV of palm oil and its products as an attempt to reduce the use of chemicals in the analysis. The DSC thermograms of palm oil showed a clear separation of the substances that have low melting points (low-T), consisting of triunsaturated, monosaturated and disaturated triglycerides, from the high ones (high-T), consisting of trisaturated triglycerides. Regression analysis showed that the peak characteristics, namely, area and height of the low-T group and height of the high-T group in the heating thermogram and also the height of the high-T group in the cooling thermogram, can predict the IV of palm oil with R 2 higher than 0.99. This study concludes that DSC can be used to determine the IV of palm oil and its products. AOCS Press 1997 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/35914/1/Determination%20of%20iodine%20value%20of%20palm%20oil%20by%20differential%20scanning%20calorimetry.pdf text en http://psasir.upm.edu.my/id/eprint/35914/7/J%20Americ%20Oil%20Chem%20Soc%20-%201997%20-%20Haryati%20-%20Determination%20of%20iodine%20value%20of%20palm%20oil%20by%20differential%20scanning%20calorimetry.pdf H. M. Salim, Tri Haryati and Che Man, Yaakob and Ali, Asbi and Mohd Ghazali, Hasanah and Buana, Lalang (1997) Determination of iodine value of palm oil by differential scanning calorimetry. Journal of the American Oil Chemists' Society, 74 (8). pp. 939-942. ISSN 0003-021X; ESSN: 1558-9331 http://link.springer.com/article/10.1007%2Fs11746-997-0007-2 10.1007/s11746-997-0007-2 |
| spellingShingle | H. M. Salim, Tri Haryati Che Man, Yaakob Ali, Asbi Mohd Ghazali, Hasanah Buana, Lalang Determination of iodine value of palm oil by differential scanning calorimetry |
| title | Determination of iodine value of palm oil by differential scanning calorimetry |
| title_full | Determination of iodine value of palm oil by differential scanning calorimetry |
| title_fullStr | Determination of iodine value of palm oil by differential scanning calorimetry |
| title_full_unstemmed | Determination of iodine value of palm oil by differential scanning calorimetry |
| title_short | Determination of iodine value of palm oil by differential scanning calorimetry |
| title_sort | determination of iodine value of palm oil by differential scanning calorimetry |
| url | http://psasir.upm.edu.my/id/eprint/35914/ http://psasir.upm.edu.my/id/eprint/35914/ http://psasir.upm.edu.my/id/eprint/35914/ http://psasir.upm.edu.my/id/eprint/35914/1/Determination%20of%20iodine%20value%20of%20palm%20oil%20by%20differential%20scanning%20calorimetry.pdf http://psasir.upm.edu.my/id/eprint/35914/7/J%20Americ%20Oil%20Chem%20Soc%20-%201997%20-%20Haryati%20-%20Determination%20of%20iodine%20value%20of%20palm%20oil%20by%20differential%20scanning%20calorimetry.pdf |