WIHARYONO, LIA SEPTIANI2022-07-212022-07-212022-01PerpustakaanElfitrahttps://repository.unri.ac.id/handle/123456789/10577Green betel leaves and kaffir lime have long been used by the community in everyday life, because of the stage of leaf development that causes changes in volatile compounds. Towling of young, mature and old leaves is constantly feared to trigger growth in growth and development of plants. The purpose of this study was to determine the change in essential oils of young, mature and old leaves with green betel and kaffir lime which was effective against essential oil yields. This study uses a descriptive method without any repetition. The essential oil yield data were analyzed descriptively. The results showed that young leaves and mature whaling green betel and kaffir lime lodges produced higher essential oil yields than their old leaves, the highest yield found in essential oils of young leaves and mature kaffir lime, which was 0.83%.enessential oilgreen betelkaffir limeyieldArticle