<![CDATA[This community service program aimed to strengthen the Mekarsari community's knowledge and practical skills in utilizing pineapple peel waste through a participatory circular-economy approach, specifically by producing eco-enzyme and processing it into liquid organic fertilizer (LOF) and compost activator. The program involved 40 participants from the Family Welfare Movement (PKK/ Pemberdayaan dan Kesejahteraan Keluarga) and Karang Taruna (a local Indonesian youth organization) and was implemented through preparation and socialization, eco-enzyme production training, LOF and compost activator production training, business management and marketing training, and program evaluation. Participants were organized into five practice groups. Program outcomes were evaluated using a 10-item pre-test and post-test covering basic eco-enzyme knowledge, the eco-enzyme production process, and the LOF production process; learning improvement was analyzed using normalized gain (N-Gain), and field observations documented participation and practical performance. The five groups collectively produced 50 L of eco-enzyme, 10 L of LOF, and 10 L of compost activator. Participants' mean scores increased from 59.2 to 94.2 for basic eco-enzyme knowledge (N-Gain = 0.86), from 46.9 to 88.8 for the eco-enzyme production process (N-Gain = 0.79), and from 38.3 to 85.0 for the LOF production process (N-Gain = 0.76), all categorized as high gains. These findings indicate that the program was feasible for community-level implementation and supported short-term improvement in participants' knowledge and practical production capacity. However, the results should not be interpreted as evidence of agronomic effectiveness or standardized product quality because laboratory and field-performance testing were not conducted.]]>
