Chemical compositions of essential oils in four species of homalomena (family : araceae) from Sarawak

Nadia, Binti Mat. (2014) Chemical compositions of essential oils in four species of homalomena (family : araceae) from Sarawak. [Final Year Project Report] (Unpublished)

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Abstract

Homalomella species that belong to Araceae family were collected from various locations in Sarawak. Essential oils were extracted from stems and rhizomes of five Homalomena species using hydrodistillation method. The essential oils were analysed using gas chromatographyflame ionization detector (GC-FID). The compounds identified in the stem and rhizome essential oils from genus of Homalomena were then analysed statistically using cluster analysis to determine their correlation between species. The percentage yield of essential oils from five Homalomena species was ranged from 0.07 to 6.01 (v/w). The rhizome oil of H. giamellsis was the highest yield of oil (6.01%). Major component of stem oil from H. aromatica, H. borneellsis, H gastrolrocta (Batang Ai), H gastrolrllcta (Padawan) and H. giamensis, were methyiethyl pyrazine, ~-eudesmoi, fl-bisabolol, uncineol and p-guaiene, respectively. For rhizome oil of Homalomena species, major constituents of H. aromaliea, H. borneensis, H. gastrqfroeta (Batang Ai), H. gastrolrocta (Padawan) and H. giamensis, were oetenol, acetylthiazoline, methyl benzoate, imethyloctadienal and octenol, respectively. Common compounds from all studied Homa/omena species such as (E)-Whiskey lactone, (Z)-oak-lactone, a-ocimene, p-bourbonene and T -muurolol can be used as fingerprint for the genus. The cluster analysis clearly separate plants from different genus. Within genus of Homalomena, significant relationship was shown between H. bomeensis and if. gaslrofrucla (Padawan) and between H. giamensis and FI. gaslrolrucla (Batang Ai).

Item Type: Final Year Project Report
Additional Information: Project Report (B.Sc.)-- Universiti Malaysia Sarawak, 2014.
Uncontrolled Keywords: Homalomena species, essential oils, GC-FID, cluster analysis, unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education, undergraduate, research, Universiti Malaysia Sarawak.
Subjects: Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Depositing User: Gani
Date Deposited: 15 Jul 2019 00:39
Last Modified: 15 Jul 2019 00:39
URI: http://ir.unimas.my/id/eprint/25821

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