<![CDATA[Turmeric (Curcuma longa L.) has potential as a source of natural medicinal raw materials because it contains various bioactive compounds, including essential oils with pharmacological activity. The utilization of low-grade turmeric through essential oil extraction is one way to increase its economic value; however, appropriate pretreatment and extraction methods are required to achieve optimal yield and preserve its chemical components. This study aimed to compare the yield and TLC profile of turmeric rhizome essential oil based on pretreatment and distillation methods. The study employed a quantitative design with an experimental approach using a post-test-only control design. The obtained essential oil was then analyzed for yield and examined using TLC-densitometry. The turmeric essential oil obtained from the wilted rhizome treatment yielded a higher yield compared to the fresh rhizome treatment.. and the essential oil obtained using the water distillation method showed a higher yield compared to steam distillation. The highest yield was obtained from the wilted rhizome treated with water distillation, wich was 0,665% ± 0,166. TLC analysis revealed the presence of turmerone and ar-turmerone compounds. The highest total percentage of area (62,62%) was observed in the fresh rhizome treated with water distillation.]]>
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