| Popis: |
Cananga odorata, known as ‘Bunga Kenanga’, is one of the plants where its essential oil is widely used in cosmetic and food industry. The C. odorata essential oils and the extracts showed a number of bioactivities, including anti-inflammatory, antidiabetic, antimicrobial and insect-repellent activities. Therefore, this study demonstrates the importance of the extraction of C. odorata essential oil as insect repellency and antibacterial activities for agriculture and medicine purposes. The essential oil was extracted from approximately 2600 g of C. odorata dried powdered flower samples by using the steam distillation process. After the distillation, the percentage yield of the floral-scented colourless C. odorata essential oil is calculated, and the yield obtained is 0.083% (V/W) or about 2.2 mL of essential oil. Then, the oil was analysed using GC-MS and it was found that linalool (21.78%), acetic acid (15.77%), β-ocimene (13.53%), piperonal (10.02%) and eugenol (7.42%) have been recognized as the bioactive compounds that possess antimicrobial activities towards food-borne microorganisms that are used: Salmonella typhi, Bacillus subtilis, Staphylococcus aureus and Escherichia coli. Linalool is another compound that has been shown to have insect-repellent activity against house ants (Monomorium pharaonis). Overall, this study emphasizes the potential of C. odorata to be used as a natural insect repellent that also possesses antibacterial activity and provides sufficient baseline information for future works and commercial exploitation. |
