Essential oils from five etlingera species of Sarawak
Essential oils from five Etlingera species were studied for their chemical composition and their biological activity on A. salina, Captotermes spp. and three species of fungal (Termetes Versicolor, Gloeophyllum trabeum, Chaetomum globosum). Essential oils were extracted by hydrodistillation method a...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English |
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Universiti Malaysia Sarawak, UNIMAS
2009
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| Online Access: | http://ir.unimas.my/id/eprint/7713/ http://ir.unimas.my/id/eprint/7713/4/Nur%20Anwariah%20Binti%20Marsal%20ft.pdf |
| _version_ | 1848836197570314240 |
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| author | Nur Anwariah, Marsal |
| author_facet | Nur Anwariah, Marsal |
| author_sort | Nur Anwariah, Marsal |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Essential oils from five Etlingera species were studied for their chemical composition and their biological activity on A. salina, Captotermes spp. and three species of fungal (Termetes Versicolor, Gloeophyllum trabeum, Chaetomum globosum). Essential oils were extracted by hydrodistillation method and subsequently analyzed using gas chromatography/flame ionization detector (GC/FID). The percentage of essential oils obtained from the five Etlingera species ranged from 0.11% to 1.83%, with the highest percentage was obtained from the leaf of E. nasuta and the lowest percentage was obtained from the stem of E. kenyalang. The major constituent of E. kenyalang were (E)-p-mentha-2,8-dien-1-ol (43.3%), ethyl isohexanoate (24.5%) and octanal(23.9%). E, nasuta was rich in methyl laurate (26.2%), octanone (26.0%) and (-)-β-bisabolene (24.1%). E. brevilabrum was contain high abundance of mercaptan (20.7%), decane (21.2%) and β-farnesene (11.8%) while E. coccinea has methylfurfurylthiol (27.3%), acetylpyrroline (22.4%) and ethylmethyl pyrazine (18.8%) as the major compounds. Isopulegyl acetate (16.8%), perilla aldehyde (8.8%) and (+)-α-phellandrene (8.3%) were the major components in E. fimbriobractaeta. Essential oils were subjected to three biological activity tests, i.e. brine shrimp, anti-termites and anti-fungal bioassay. No biological activity on A. salina and fungi was observed for all essential oils tested. However, the entire tests carried show that the Captotermes spp. repelled to the smell of the essential oils tested. |
| first_indexed | 2025-11-15T06:19:56Z |
| format | Final Year Project Report / IMRAD |
| id | unimas-7713 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:19:56Z |
| publishDate | 2009 |
| publisher | Universiti Malaysia Sarawak, UNIMAS |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-77132024-01-23T04:21:21Z http://ir.unimas.my/id/eprint/7713/ Essential oils from five etlingera species of Sarawak Nur Anwariah, Marsal Q Science (General) Essential oils from five Etlingera species were studied for their chemical composition and their biological activity on A. salina, Captotermes spp. and three species of fungal (Termetes Versicolor, Gloeophyllum trabeum, Chaetomum globosum). Essential oils were extracted by hydrodistillation method and subsequently analyzed using gas chromatography/flame ionization detector (GC/FID). The percentage of essential oils obtained from the five Etlingera species ranged from 0.11% to 1.83%, with the highest percentage was obtained from the leaf of E. nasuta and the lowest percentage was obtained from the stem of E. kenyalang. The major constituent of E. kenyalang were (E)-p-mentha-2,8-dien-1-ol (43.3%), ethyl isohexanoate (24.5%) and octanal(23.9%). E, nasuta was rich in methyl laurate (26.2%), octanone (26.0%) and (-)-β-bisabolene (24.1%). E. brevilabrum was contain high abundance of mercaptan (20.7%), decane (21.2%) and β-farnesene (11.8%) while E. coccinea has methylfurfurylthiol (27.3%), acetylpyrroline (22.4%) and ethylmethyl pyrazine (18.8%) as the major compounds. Isopulegyl acetate (16.8%), perilla aldehyde (8.8%) and (+)-α-phellandrene (8.3%) were the major components in E. fimbriobractaeta. Essential oils were subjected to three biological activity tests, i.e. brine shrimp, anti-termites and anti-fungal bioassay. No biological activity on A. salina and fungi was observed for all essential oils tested. However, the entire tests carried show that the Captotermes spp. repelled to the smell of the essential oils tested. Universiti Malaysia Sarawak, UNIMAS 2009 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/7713/4/Nur%20Anwariah%20Binti%20Marsal%20ft.pdf Nur Anwariah, Marsal (2009) Essential oils from five etlingera species of Sarawak. [Final Year Project Report / IMRAD] (Unpublished) |
| spellingShingle | Q Science (General) Nur Anwariah, Marsal Essential oils from five etlingera species of Sarawak |
| title | Essential oils from five etlingera species of Sarawak |
| title_full | Essential oils from five etlingera species of Sarawak |
| title_fullStr | Essential oils from five etlingera species of Sarawak |
| title_full_unstemmed | Essential oils from five etlingera species of Sarawak |
| title_short | Essential oils from five etlingera species of Sarawak |
| title_sort | essential oils from five etlingera species of sarawak |
| topic | Q Science (General) |
| url | http://ir.unimas.my/id/eprint/7713/ http://ir.unimas.my/id/eprint/7713/4/Nur%20Anwariah%20Binti%20Marsal%20ft.pdf |