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Hamdani, Ulfah Zakiyah
Program Studi Kimia, Fakultas Sains Universitas Cokroaminoto Palopo
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Pelatihan Uji Fitokimia Tanaman Lokal yang Berpotensi sebagai Obat-obatan untuk Meningkatkan Literasi Sains Siswa di SMK Analis Mandala Bhakti Kota Palopo Ilmiati Illing; Sukarti Sukarti; Ulfah Zakiyah Hamdani; Nurmalasari Ismail; Nurasia Nurasia
Abdimas Langkanae Vol. 6 No. 2 (2026)
Publisher : Pustaka Digital Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53769/jpm.v6i2.803

Abstract

Peningkatan literasi sains dan keterampilan laboratorium merupakan aspek penting dalam mendukung kompetensi siswa Sekolah Menengah Kejuruan (SMK), khususnya pada bidang analisis kimia. Kegiatan pengabdian kepada masyarakat ini bertujuan untuk meningkatkan pengetahuan, keterampilan, dan literasi sains siswa melalui pelatihan uji fitokimia tanaman lokal yang berpotensi dimanfaatkan sebagai bahan obat. Kegiatan dilaksanakan di SMK Analis Mandala Bhakti Kota Palopo dengan melibatkan dosen Program Studi Kimia Fakultas Sains Universitas Cokroaminoto Palopo, ketua program studi, kepala sekolah, guru bidang Kimia dan Biologi, serta siswa kelas XII. Metode pelaksanaan kegiatan meliputi penyuluhan, demonstrasi, dan pendampingan praktikum penggunaan alat laboratorium serta pengenalan teknik skrining fitokimia pada tanaman lokal yang berpotensi sebagai sumber obat tradisional. Hasil kegiatan menunjukkan adanya peningkatan pemahaman siswa mengenai pemanfaatan sumber daya alam hayati, pengenalan senyawa metabolit sekunder, serta peningkatan keterampilan dalam penggunaan peralatan laboratorium kimia. Selain itu, kegiatan ini berkontribusi terhadap peningkatan literasi sains siswa melalui pembelajaran berbasis praktik yang mengintegrasikan konsep kimia dengan potensi sumber daya hayati lokal dan memperkuat kemitraan antara perguruan tinggi dan sekolah dalam mendukung peningkatan kualitas pembelajaran berbasis laboratorium.
Physicochemical and Agronomic Effects of Sago Waste-Derived Biochar and Compost on Seedling Survival Across Sago Accessions Masluki Masluki; Mutmainnah Mutmainnah; Erni Firdamayanti; Sri Hastuty Saruman; Ulfah Zakiyah Hamdani
Agro Bali : Agricultural Journal Vol 9, No 2 (2026)
Publisher : Universitas Panji Sakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37637/ab.v9i2.2805

Abstract

Sago (Metroxylon sagu Rottb.) is an important tropical starch-producing palm with substantial potential to support food security and climate-resilient agriculture in Indonesia. However, sago-processing activities generate large quantities of lignocellulosic residues that are commonly discarded without proper utilization, thereby contributing to environmental pollution and biomass waste accumulation. This study evaluated the physicochemical characteristics of sago waste-derived biochar and compost and assessed their effectiveness as planting media amendments for improving sago seedling establishment during acclimatization. Biochar was produced through slow pyrolysis of sago bark residues at 300–500°C, whereas compost was prepared from sago pulp through controlled microbial fermentation. Chemical composition was analyzed using X-ray fluorescence (XRF), while microstructural characteristics and elemental composition were evaluated using scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM–EDX). XRF analysis revealed that sago pulp compost contained high silica concentrations (40.50%), whereas sago pith was enriched with potassium (25.63%) and calcium (27.07%). SEM observations revealed highly porous biochar structures with dominant carbon content ranging from 89.35% to 94.42%, indicating favorable properties for water retention and nutrient adsorption. Agronomic evaluation showed that the application of 300 g biochar + 300 g pith + 300 g compost significantly increased seedling survival to 96.43% at 12 weeks after application compared with the untreated control (P ≤ 0.05). To the best of our knowledge, this is the first study to integrate the physicochemical characterization of sago-processing residues (biochar and compost) with an accession-based agronomic evaluation of seedling survival, thereby linking waste valorization to nursery performance in M. sagu. The findings demonstrate that sago-processing residues can be converted into effective organic amendments and provide a mechanistic, evidence-based basis for circular biomass utilization in tropical nursery systems.
Co-Authors A. Hermina Julyaningsih A. Hermina Julyaningsih Andi Karman Andi Karman Arnama, I Nyoman Atmiral Besse Herdiana Cambaba, Sunarti Firdamayanti, Erni Hairuddin, Rahman Hamdani, Ibnu Mansyur Hamdani, Nurul Fuady Adhalia Ibnu Mansyur Hamdani Ikram Lihu Illing, Ilmiati Irwan Syarif Irwan Syarif Jusmi, Fitri M. Muhajir, M. Mangera, Elisabet Masluki, Masluki Mustawinar, Besse Helmi Mutmainnah Mutmainnah Nurasia Nurhidayat Nurhidayat Nurmalasari Ismail Nurul Fuady Adhalia H Rahmawasiah, Rahmawasiah Rahmawati, Hilda Reza Oktavriana Riska Riska Saruman, Sri Hastuty Srihidayati, Gita Taufiq Taufiq Tenriati Tenriati Tenriati, Tenriati Tenriawaru Eka Pratiwi, Tenriawaru Yanti, Rosmalah