Abstract
Tea tree is an essential oil-producing plant from Australia which is also found growing in several parts of Indonesia, including the island of Lombok. So far, tea tree essential oil producers on the island of Lombok do not utilize by-products in the form of hydrosol (distilled water) produced in the process of making essential oils. In this study, the characterization and analysis of the chemical composition of the hydrosol of tea tree leaves growing on the island of Lombok was carried out. The characteristic aroma of hydrosol is similar to that of tea tree essential oil. The results of the GC-MS analysis also showed that the hydrosol of tea tree leaves also had similarities with the essential oil, composed of major compounds in the form of trans-caryophyllene (28.58%), limonene (13.98%) and terpinen-4-ol (16.27%). Other compounds detected were -pinene (4.14%), -pinene (6.50%), -myrcene (8.09%), -terpineol (10.10%) and -terpinene (5.77%).
Highlights
Indonesia is an archipelagic country with abundant biodiversity, one of which is essential oilproducing plants
The characterization and analysis of the chemical composition of the hydrosol of tea tree leaves growing on the island of Lombok was carried out
The results of the GC-MS analysis showed that the hydrosol of tea tree leaves had similarities with the essential oil, composed of major compounds in the form of trans-caryophyllene (28.58%), limonene (13.98%) and terpinen-4-ol (16.27%)
Summary
Indonesia is an archipelagic country with abundant biodiversity, one of which is essential oilproducing plants. Indonesia is one of the largest essential oil producers in the world by producing around 40 types of essential oils (Ministry of Home Affairs, 2014). One type of essential oil that is currently being developed is tea tree (Meleuca alternifolia) essential oil. Tea tree is a plant from Australia which is found growing or cultivated in several parts of Indonesia, including the island of Lombok. The process of distillation of tea tree essential oil by the people of the island of Lombok generally uses the steam distillation method. Steam distillation method is a method that is widely chosen to extract essential oils from a plant because it can produce high yields of essential oils with good physical characteristics
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