GINGER ESSENTIAL OIL SYNTHESIS BETWEEN CHINA AND KUCHING LOCAL GINGER FOR INSECT REPELLENT
Ginger essential oil is the violate oil extracted from ginger rhizome itself. The present of the essential oil on a plant usually is in small amount and the quantity extracted will be varying with the essential oil extraction method. Hydro distillation, steam distillation, solvent extraction,...
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Format: | Final Year Project Report |
Language: | English English |
Published: |
Universiti Malaysia Sarawak
2022
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Online Access: | http://ir.unimas.my/id/eprint/39358/1/FYP_Wong%20Fong%20Fei%20-%2024pages.pdf http://ir.unimas.my/id/eprint/39358/5/Wong%20Fong%20Fei.pdf http://ir.unimas.my/id/eprint/39358/ |
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Summary: | Ginger essential oil is the violate oil extracted from ginger rhizome itself. The present
of the essential oil on a plant usually is in small amount and the quantity extracted will be
varying with the essential oil extraction method. Hydro distillation, steam distillation, solvent
extraction, and cold press extraction is some of the examples for essential oil extraction.
Comparing to the chemical synthetic mosquito repellent, green mosquito repellent would be
favour by the public recently as it is environmentally friendly and does not harm to the human’s
health. Some of the essential oil had been proven to have the repellent ability against the
mosquito including the ginger essential oil. Hence, the focus of this study is on the comparison
study between China and Kuching local ginger essential oil as the green mosquito repellent.
The ginger essential oils are extracted by using hydro distillation method for 7 hours. The
percentage oil yield for China and Kuching local ginger are 0.158 wt. % and 0.264 wt. %
respectively. The extracted ginger essential oils are further done for Fourier Transform Infrared
Spectroscopy (FTIR) and Gas Chromatography- Mass spectrometry (GC-MS) analysis. Based
on the generated FTIR spectrum graph, both types of ginger essential oils have the same
function groups including phenolic compounds, alcohol primer, alkena methyl group, aromatic
compound, carbonyl compound, carboxylic acid, hydroxyl group. From the GC-MS results it
revealed that the most abundant chemical constituents presented in the both China and Kuching
local ginger essential were: α-Zingiberene (7.88% and 7.03%), α-Curcumene (6.04% and
6.49%), α-Citral or Genarial (3.81% and 7.86%), β-Bisabolene (3.06% and 4.62%), β�Sesquiphellandrene (5.83% and 5.95%), β-Sesquisabinene (0.07% and 0.51%), β-Selinenol
(3.97% and 2.26%), Zingiberenol (5.16% and 1.64%), [6]-Shogaol (0.33% and 0.23%), trans�Sesquisabinene hydrate (1.72% and 2.87%), trans-Geranylgeraniol (3.51% and 2.81%),
Camphene (1.17% and 0.56%), Eucalyptol (2.68% and 1.81%), Citronellol (1.76% and 1.55%),
Neral (2.82% and 6.03%), and Geraniol (1.62% and 2.29%) respectively. Kuching local ginger
essential oil is chosen as the more suitable mosquito repellent due to its higher monoterpene
compounds in ginger essential oil. |
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