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All Journal HAYATI Journal of Biosciences ACTA VETERINARIA INDONESIANA Teknotan: Jurnal Industri Teknologi Pertanian Jurnal Penelitian Hasil Hutan Jurnal Bioteknologi & Biosains Indonesia (JBBI) INDONESIAN JOURNAL OF ESSENTIAL OIL Jurnal Perikanan Universitas Gadjah Mada Chemistry Indonesian Journal of Chemical Research Eksakta : Berkala Ilmiah Bidang MIPA Fullerene Journal of Chemistry Jurnal Penelitian Hasil Hutan Science Nature Jurnal Pengabdian Masyarakat (ABDIRA) JURNAL TEKNIK INDUSTRI BAKIRA: Jurnal Pengabdian Kepada Masyarakat Innovation for Community Service Journal Jurnal Penelitian Hasil Hutan
Kapelle, Imanuel B. D.
Department Of Chemistry, Faculty Of Science And Technology, Universitas Pattimura, Ambon, Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Social Sciences Veterinary Other

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Compound Profile of Methanol Extract of Katang-Katang Leaves (Ipomoea pes-caprae) and Evaluation of Its Antibacterial and Antioxidant Activities Dessy Rosye Rooy; Kapelle, Imanuel Berly Delvis; Rosmawaty
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 01 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss01/633

Abstract

 Increasing antibiotic resistance has prompted the search for safer and more sustainable natural alternatives. Ipomoea pes-caprae, a coastal plant traditionally used for the treatment of wounds and inflammation, is known to be rich in secondary metabolites such as flavonoids, terpenoids, alkaloids, and phenolic acids that have potential antioxidant and antibacterial properties. This study aimed to map the metabolite profile of the methanolic extract of I. pes-caprae leaves using LC-HRMS, to analyze its relationship with antioxidant activity measured by the DPPH method, and to evaluate its antibacterial activity against Staphylococcus aureus and Escherichia coli. LC-HRMS analysis identified 406 compounds with Palmitic Acid as the dominant component (24.503%), including primary and secondary metabolite groups such as flavonoids (quercetin, rutin, kaempferol), phenolic acids (caffeic, ferulic, chlorogenic acid), terpenoids (caryophyllene oxide, lupeol), alkaloids, and phytohormones. The methanol extract showed moderate antioxidant activity (IC₅₀ = 136.71 ppm) and antibacterial activity against E. coli (inhibition zone 9.5 mm), which is thought to originate from the synergy of various secondary metabolites through free radical scavenging mechanisms and bacterial membrane damage. These findings strengthen the scientific basis for I. pes-caprae as a natural source of antioxidant and antibacterial agents for the development of natural pharmaceutical products.
Pemberdayaan Pemuda dan Komunitas dalam Program Sabtu Bebas Sampah di Negeri Passo Julian Carel Koritelu; Irdayanti Umafagur; Ayu Anastasya Ilely; Valecia Latumaerissa; Naya Reswari; Imanuel Berly Delvis Kapelle
Innovation for Community Service Journal Vol 4 No 1 (2026): April 2026
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v4i1.25613

Abstract

Program “Gotong Royong Komunitas Sabtu Bebas Sampah” di Negeri Passo dilaksanakan sebagai upaya pemberdayaan masyarakat dalam meningkatkan kebersihan lingkungan dan memperkuat kohesi sosial melalui kolaborasi antara mahasiswa Kuliah Kerja Nyata (KKN), pemuda, pemerintah negeri, pemerintah kecamatan, dan masyarakat setempat. Pemilihan program ini didasarkan pada pentingnya pengelolaan sampah berbasis partisipasi masyarakat sebagai solusi terhadap permasalahan lingkungan. Metode pelaksanaan dilakukan melalui observasi lapangan, koordinasi dengan pemangku kepentingan, serta pelaksanaan kerja bakti kolaboratif. Hasil observasi menunjukkan bahwa masyarakat telah memiliki sistem kebersihan yang terstruktur dan terdapat kebijakan pemerintah terkait pembersihan wilayah pesisir, sehingga program mengalami penyesuaian agar tetap relevan dan mendukung kebutuhan komunitas. Kegiatan yang dilaksanakan dalam tiga tahap kerja bakti, meliputi pengangkutan sampah rumah tangga dan pembersihan pesisir pantai, menunjukkan peningkatan kebersihan lingkungan, terbentuknya sinergi lintas komunitas, serta meningkatnya kesadaran dan partisipasi masyarakat dalam pengelolaan sampah berbasis gotong royong. Program ini menegaskan bahwa pengabdian masyarakat yang adaptif dan kolaboratif berkontribusi penting terhadap keberlanjutan pengelolaan lingkungan di Negeri Passo
Implementasi Edukasi Anti-Bullying dan Pencegahan Narkoba untuk Mewujudkan Lingkungan Sekolah yang Kondusif Ahmad Khuzaini Abdillah; Nuryati Holle; Dhea Vansenley Monika Pakey; Chrismenda Saiya; Nelia Helna Laturette; Imanuel Berly Delvis Kapelle
Innovation for Community Service Journal Vol 4 No 1 (2026): April 2026
Publisher : Department of Chemistry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/icsj.v4i1.25619

Abstract

Program “Gotong Royong Komunitas Sabtu Bebas Sampah” di Negeri Passo dilaksanakan sebagai upaya pemberdayaan masyarakat dalam meningkatkan kebersihan lingkungan dan memperkuat kohesi sosial melalui kolaborasi antara mahasiswa Kuliah Kerja Nyata (KKN), pemuda, pemerintah negeri, pemerintah kecamatan, dan masyarakat setempat. Pemilihan program ini didasarkan pada pentingnya pengelolaan sampah berbasis partisipasi masyarakat sebagai solusi terhadap permasalahan lingkungan. Metode pelaksanaan dilakukan melalui observasi lapangan, koordinasi dengan pemangku kepentingan, serta pelaksanaan kerja bakti kolaboratif. Hasil observasi menunjukkan bahwa masyarakat telah memiliki sistem kebersihan yang terstruktur dan terdapat kebijakan pemerintah terkait pembersihan wilayah pesisir, sehingga program mengalami penyesuaian agar tetap relevan dan mendukung kebutuhan komunitas. Kegiatan yang dilaksanakan dalam tiga tahap kerja bakti, meliputi pengangkutan sampah rumah tangga dan pembersihan pesisir pantai, menunjukkan peningkatan kebersihan lingkungan, terbentuknya sinergi lintas komunitas, serta meningkatnya kesadaran dan partisipasi masyarakat dalam pengelolaan sampah berbasis gotong royong. Program ini menegaskan bahwa pengabdian masyarakat yang adaptif dan kolaboratif berkontribusi penting terhadap keberlanjutan pengelolaan lingkungan di Negeri Passo.
Influence of Species, Growing Site, and Postharvest Leaf Handling on the Yield and Chemical Composition of Cajuput Oil (Melaleuca spp.) from Seram Island, Indonesia Imanuel Berly Delvis Kapelle; Fensia Analda Souhoka; Nini Munirah Renur
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 27 No. 03 (2026): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464) In Progress
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol27-iss03/687

Abstract

Cajuput (Melaleuca spp.) is a high-value non-timber forest product in Seram Island, Maluku. The quality of cajuput oil is primarily determined by its 1,8-cineole (eucalyptol) content, which is influenced by genetic, environmental, and raw material factors. This study analyzed the effects of species, growing location, and raw material condition on the yield and chemical composition of oil derived from Melaleuca leucadendra and Melaleuca cajuputi collected from Hatusua and Eti villages, using distillation and GC-MS analysis. The results showed that fresh leaves yielded higher amounts than dried leaves. The highest yield was obtained from M. leucadendra from Eti (1.022%), while the lowest yield was recorded from dried leaves (0.008%). M. leucadendra oil was dominated by eucalyptol (56.62–58.50%), whereas M. cajuputi was dominated by methyleugenol (81.61%) with a lower yield (0.1213%), reflecting differences in genetically controlled metabolic pathways. Environmental factors influenced yield and minor compounds without altering the dominant constituents. Overall, the quality and quantity of cajuput oil are determined by the interactions among genetic, environmental, and post-harvest factors. The use of fresh raw materials, appropriate species or chemotypes, and optimal growing locations is key to improving oil quality and ensuring consistent production.   
Co-Authors Agus Oman Sudrajat Ahmad Khuzaini Abdillah Andri Yanto Andriyanto Andriyanto Andriyanto Arpipi, Henderika S. S. Ayu Anastasya Ilely Baharudin, Indah Bambang Gunadi Bambang Gunadi Bambang Gunadi Bijang, Chaterina Manukpadang Birahy, Deford Cristy Catherina M. Bijang Chrismenda Saiya Dessy Rosye Rooy Dewi Sri Dhea Vansenley Monika Pakey Djumali Mangunwidjaja Djumali Mangunwidjaja Djumali Mangunwidjaja DOMINGGUS MALLE Elisabeth Sihasale Fauzan Saleh Fensia Analda Souhoka Fensia Analda Souhoka Gainau, Paskanova Christi Gaspersz, Nelson Hanoch J Sohilait Hanoch Julianus Sohilait Hasanela, Nurani Hattu, Nikmans Hellna Tehubijuluw Hellna Tehubijuluw I W. Sutapa Insun Sangadji Irdayanti Umafagur Ivonne Telussa Julian Carel Koritelu Laratmase, Marsela S. Lilipaly, Reggi Austin Linda Lattuputty Lopulalan, Flourence M. Syamsul Maarif Maahury, Mirella Fonda Mauhurry, Mirella Fonda Meika Syahbana Rusli Meike L. Haluruk Meillisa C. Mainassy Moylani Teddy Muh. Nurdin Naya Reswari Neite, Prisca Nelcy Nelia Helna Laturette Netty Siahaya Nini Munirah Renur Nini Munirah Renur Nuryati Holle Pattiasina, Bethsy Jane Pattiasina, Priska Marisa Pentury, Evangeline Priska Marisa Pattiasina Priska Marissa Pattiasina R, Irwan Rahayu Rante, Natalia C.D. Rosmawaty Rosmawaty Harahap Sabirin Matsjeh Salmawati, Mimi Sekewael, Serly Jolanda Semuel S. Pada Serly J. Sekewael Serly J. Sekewael Shielda Natalia Joris Shielda Natalia Joris Siahaya, Antho Netty Sohilait, H. Sohilait, Mario Rowan Stephanie P. Sohilait Tun Tedja Irawadi Tun Tedja Irawadi Valecia Latumaerissa Waas, Alsye Walla, Ainun Maharani Wasmen Manalu Yandra Arkeman Yusthinus T. Male Zainal Alim Mas'ud Zainal Alim Mas'ud Zainal Alim Mas'ud