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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Unram Journal of Community Service (UJCS)
Priska Marisa Pattiasina
Pattimura University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Social Sciences

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Community Empowerment through the Application of Technology to Increase Copra Production for Farmer Groups in Saweli Village, Taniwel, West Seram Mimi Salmawati; Nelson Gaspersz; Priska Marisa Pattiasina
Unram Journal of Community Service Vol. 7 No. 1 (2026): March
Publisher : Pascasarjana Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/ujcs.v7i1.1551

Abstract

West Seram Regency has a coconut plantation area of 8,326.10 hectares, with a total production of 7,390.5 tons and an average productivity of 0.89 tons per hectare. Nearly all parts of the coconut plant can be utilized, including the trunk, leaves, fruit, husk, and shell. The use of mature coconuts for copra production is one of the ways to increase the income of coastal communities, particularly in Saweli Village, located in West Seram Regency. However, copra production in Saweli Village, which is generally carried out using traditional or home-industry methods, has not yet reached optimal results in terms of production time and output quantity. One of the main challenges faced by the community is the lengthy process of removing the coconut husk and shell during copra production. The current pre-processing stage remains conventional, as coconuts are peeled manually using traditional tools. Therefore, through this Community Empowerment Program (PMS), we aim to introduce transformative learning to help develop and empower the local community, particularly in Saweli Village, Taniwel District, West Seram Regency, Maluku. This initiative focuses on supporting small-scale entrepreneurs whose production processes have not yet met market standards.
Acid-Catalyzed Synthesis of Biodiesel from Calabash (Crescentia cujete) Seed Oil Nelson Gaspersz; Matheis F. J. D. P. Tanasale; Chalvin Marco Paula; Mimi Salamawati; Priska Marisa Pattiasina
Jurnal Penelitian Pendidikan IPA Vol 12 No 6 (2026)
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v12i6.13763

Abstract

This study evaluated the acid-catalyzed production of biodiesel from Calabash (Crescentia cujete) seed oil using sulfuric and nitric acids as transesterification catalysts. Oil extracted by Soxhlet extraction yielded 35.20% and was converted into biodiesel under various reaction conditions to determine the optimum catalyst loading, reaction time, temperature, and oil-to-methanol molar ratio. Sulfuric acid exhibited superior catalytic performance, achieving the highest biodiesel yield of 91.20% at 4% catalyst loading, 65 °C, 4 h, and an oil-to-methanol molar ratio of 1:12. Under optimum conditions, nitric acid produced a lower yield of 65.85% at 3% catalyst loading, 65 °C, 6 h, and a molar ratio of 1:9. GC-MS analysis identified seven methyl esters in the sulfuric acid-derived biodiesel, predominantly methyl hexadecanoate (16.93%), methyl stearate (15.07%), and methyl 9-octadecenoate (43.64%). Biodiesel synthesized using nitric acid contained eight methyl esters, with methyl hexadecanoate (16.55%), methyl stearate (26.90%), and methyl 9-hexadecenoate (21.51%) as the major components. The corresponding burning rates were 1.96 × 10⁻³ and 2.71 × 10⁻³ cm²/s for sulfuric and nitric acid catalysts, respectively. Overall, sulfuric acid proved more effective, producing higher biodiesel yield in a shorter reaction time and demonstrating the potential of C. cujete seed oil as a non-edible biodiesel feedstock.
Co-Authors Chalvin Marco Paula Gaspersz, Nelson Matheis F. J. D. P. Tanasale Mimi Salamawati Mimi Salmawati Nelson Gaspersz