<![CDATA[The utilization of coastal local potential needs to be developed through simple and applicable educational activities, one of which is the processing of api-api mangrove leaves (Avicennia marina) as a natural material. This community service activity aimed to improve the knowledge and skills of housewives in Pantai Sederhana Village regarding the extraction process of api-api mangrove leaves. The implementation method consisted of education, demonstration, hands-on practice, and evaluation using pre-test and post-test instruments. The activity materials included the introduction of mangrove leaf potential, basic concepts of extraction, maceration method, the use of 96% ethanol, and the stages of processing leaves into extract. The activity was attended by nine female participants. The evaluation results showed an increase in the average knowledge score from 81.11 in the pre-test to 98.89 in the post-test, with an N-Gain score of 0.89 or 88.89%, which was categorized as effective. Participants also gave positive responses regarding the material, benefits of the activity, ease of tools and materials, and overall implementation of the training. This activity demonstrates that education combined with hands-on practice is effective in improving natural material literacy and basic skills among coastal communities in understanding the extraction process of mangrove leaves in a simple and sustainable manner.]]>
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