Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil
This study examines the effect of low molecular weight acid (LMA), moisture and oxygen on the thermal ageing characteristics of refined, bleached, and deodorised palm oil (RBDPO). The paper moisture was varied between 0.5 and 3.5. The oil was initially subjected to 0.2 g of LMA and 20 mbar of oxygen...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Published: |
Institute of Advanced Engineering and Science
2024
|
| Online Access: | http://psasir.upm.edu.my/id/eprint/106224/ |
| _version_ | 1848864720455467008 |
|---|---|
| author | Mustam, Muhammad Muzamil Azis, Norhafiz Jasni, Jasronita Halis, Rasmina Talib, Mohd Aizam Mohamad, Nur Aqilah Yaakub, Zaini |
| author_facet | Mustam, Muhammad Muzamil Azis, Norhafiz Jasni, Jasronita Halis, Rasmina Talib, Mohd Aizam Mohamad, Nur Aqilah Yaakub, Zaini |
| author_sort | Mustam, Muhammad Muzamil |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | This study examines the effect of low molecular weight acid (LMA), moisture and oxygen on the thermal ageing characteristics of refined, bleached, and deodorised palm oil (RBDPO). The paper moisture was varied between 0.5 and 3.5. The oil was initially subjected to 0.2 g of LMA and 20 mbar of oxygen pressure. The thermal ageing experiment was performed at 120 °C and 140 °C for 28 days. Several dielectric and physiochemical parameters were measured which included dielectric dissipation factor, relative permittivity, resistivity, moisture in oil, acidity, and thermogravimetric analysis (TGA). It is found that LMA and moisture in paper do not affect the relative permittivity of RBDPO and mineral oil (MO). The dielectric dissipation factor of RBDPO and MO reveals slight increment trends within the ageing time. The decrements of resistivities occur after 7 days of ageing for both RBDPO and MO while only RBDPO shows decrement trend of moisture in oil. The ageing patterns of relative permittivities, dielectric dissipation factors and resistivities for RBDPO are similar to MO. The increment of acidity for RBDPO is more apparent that MO throughout the ageing time. All RBDPOs are more resistant to ageing than MO based on the TGA. |
| first_indexed | 2025-11-15T13:53:18Z |
| format | Article |
| id | upm-106224 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T13:53:18Z |
| publishDate | 2024 |
| publisher | Institute of Advanced Engineering and Science |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1062242024-05-08T13:30:17Z http://psasir.upm.edu.my/id/eprint/106224/ Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil Mustam, Muhammad Muzamil Azis, Norhafiz Jasni, Jasronita Halis, Rasmina Talib, Mohd Aizam Mohamad, Nur Aqilah Yaakub, Zaini This study examines the effect of low molecular weight acid (LMA), moisture and oxygen on the thermal ageing characteristics of refined, bleached, and deodorised palm oil (RBDPO). The paper moisture was varied between 0.5 and 3.5. The oil was initially subjected to 0.2 g of LMA and 20 mbar of oxygen pressure. The thermal ageing experiment was performed at 120 °C and 140 °C for 28 days. Several dielectric and physiochemical parameters were measured which included dielectric dissipation factor, relative permittivity, resistivity, moisture in oil, acidity, and thermogravimetric analysis (TGA). It is found that LMA and moisture in paper do not affect the relative permittivity of RBDPO and mineral oil (MO). The dielectric dissipation factor of RBDPO and MO reveals slight increment trends within the ageing time. The decrements of resistivities occur after 7 days of ageing for both RBDPO and MO while only RBDPO shows decrement trend of moisture in oil. The ageing patterns of relative permittivities, dielectric dissipation factors and resistivities for RBDPO are similar to MO. The increment of acidity for RBDPO is more apparent that MO throughout the ageing time. All RBDPOs are more resistant to ageing than MO based on the TGA. Institute of Advanced Engineering and Science 2024 Article PeerReviewed Mustam, Muhammad Muzamil and Azis, Norhafiz and Jasni, Jasronita and Halis, Rasmina and Talib, Mohd Aizam and Mohamad, Nur Aqilah and Yaakub, Zaini (2024) Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil. Indonesian Journal of Electrical Engineering and Computer Science, 33 (1). pp. 10-19. ISSN 2502-4752; ESSN: 2502-4760 https://ijeecs.iaescore.com/index.php/IJEECS/article/view/34990 10.11591/ijeecs.v33.i1.pp10-19 |
| spellingShingle | Mustam, Muhammad Muzamil Azis, Norhafiz Jasni, Jasronita Halis, Rasmina Talib, Mohd Aizam Mohamad, Nur Aqilah Yaakub, Zaini Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil |
| title | Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil |
| title_full | Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil |
| title_fullStr | Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil |
| title_full_unstemmed | Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil |
| title_short | Impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil |
| title_sort | impact of low molecular weight acid and moisture on the thermal ageing properties of palm oil |
| url | http://psasir.upm.edu.my/id/eprint/106224/ http://psasir.upm.edu.my/id/eprint/106224/ http://psasir.upm.edu.my/id/eprint/106224/ |