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All Journal Jurnal Fisika Unand PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Jurnal Jejaring Matematika dan Sains Journal of Biotropical Research and Nature Technology
Made Dirgantara
Departemen Fisika, FMIPA, Institut Pertanian Bogor
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Electrical & Electronics Engineering Energy Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences

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Pemurnian Asap Cair Hasil Torefaksi Cangkang Sawit dengan Cara Destilasi dan Filtrasi dengan Arang Aktif: Purification of Liquid Smoke from Torrefaction of Palm Oil by Distillation and Filtration with Activated Charcoal Karelius, Karelius; Rosmainar, Lilis; Novia Toemon, Angeline; Dirgantara, Made
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.407

Abstract

The liquid smoke produced from the torrefaction process of oil palm shells has the potential to be used as an antiseptic base for hand sanitizer and disinfectant products. It is due to its high phenol and acetic acid content. Apart from phenol and acetic acid, there are many other compounds that must be separated in the hope of obtaining liquid smoke with the main components of acetic acid and phenol, which function as antibacterial agents. This research begins with the production of liquid smoke through a torrefaction process. The liquid smoke obtained is distilled at 150 oC and followed by adsorption with activated charcoal for the purification process. The pH value and acetic acid content in the purified liquid smoke were determined and analyzed using GC-MS to determine the chemical compounds. The pH value has decreased after the refining process by distillation, and activated charcoal is inversely proportional to the increase in acetic acid levels after purification. Based on GC-MS analysis results, it can be seen that the levels of acetic acid, phenol, propanoic acid, and 2-propanone increased after distillation. The loss of 1,2-Benzenediol and 2-Furancarboxaldechde compounds shows that distillation of liquid smoke at 150oC is effective for separating the heavy fraction of liquid smoke. Furthermore, the distilled liquid smoke is filtered using activated charcoal. The GC-MS analysis results showed that the filtration results with activated charcoal could increase acetic acid and propanoic acid levels in liquid smoke.
Pemurnian Asap Cair Hasil Torefaksi Cangkang Sawit dengan Cara Destilasi dan Filtrasi dengan Arang Aktif: Purification of Liquid Smoke from Torrefaction of Palm Oil by Distillation and Filtration with Activated Charcoal Karelius, Karelius; Rosmainar, Lilis; Novia Toemon, Angeline; Dirgantara, Made
Jurnal Jejaring Matematika dan Sains Vol. 2 No. 2 (2020): Edisi Desember 2020
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.2020.v2.i2.407

Abstract

The liquid smoke produced from the torrefaction process of oil palm shells has the potential to be used as an antiseptic base for hand sanitizer and disinfectant products. It is due to its high phenol and acetic acid content. Apart from phenol and acetic acid, there are many other compounds that must be separated in the hope of obtaining liquid smoke with the main components of acetic acid and phenol, which function as antibacterial agents. This research begins with the production of liquid smoke through a torrefaction process. The liquid smoke obtained is distilled at 150 oC and followed by adsorption with activated charcoal for the purification process. The pH value and acetic acid content in the purified liquid smoke were determined and analyzed using GC-MS to determine the chemical compounds. The pH value has decreased after the refining process by distillation, and activated charcoal is inversely proportional to the increase in acetic acid levels after purification. Based on GC-MS analysis results, it can be seen that the levels of acetic acid, phenol, propanoic acid, and 2-propanone increased after distillation. The loss of 1,2-Benzenediol and 2-Furancarboxaldechde compounds shows that distillation of liquid smoke at 150oC is effective for separating the heavy fraction of liquid smoke. Furthermore, the distilled liquid smoke is filtered using activated charcoal. The GC-MS analysis results showed that the filtration results with activated charcoal could increase acetic acid and propanoic acid levels in liquid smoke.
Karakterisasi Struktur Material Pasir Bongkahan Galian Golongan C Dengan Menggunakan X-Ray Difraction (X-RD) Di Kota Palangkaraya Hakim, Luqman; Dirgantara, Made; Nawir, Muhammad
Jurnal Jejaring Matematika dan Sains Vol. 1 No. 1 (2019): Edisi Juni 2019
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/jjms.v1i1.136

Abstract

Telah dilakukan Karakterisasi Struktur Material Pasir Bongkahan Galian Golongan C Dengan Menggunakan X-Ray Difraction (X-RD). Karakterisasi fisis material menggunakan X-Ray Diffraction (XRD) bertujuan mengetahui komposisi mineral dengan melihat intensitas pada sudut 2? yang karakteristik untuk setiap senyawa. X-RD yang digunakan adalah model Rigaku Miniflex 600 Benchop X-Ray Diffraction (XRD) (F.F tube 40kV, 15 mA) dengan detector Scintillation counter (K? filter) dilakukan dari 2 teta 10o – 80o. Analisis XRD dilakukan dengan menggunakan aplikasi High Score PlusVersi 3.0e. Objek penelitian ini adalah pasir bongkahan dengan variasi perbedaaan warna, yaitu . yaitu kecoklatan, hitam dan hitam pekat. Bongkahan pasir berasal dari galian golongan C di kota Palangka Raya yang diambil dari lokasi penambangan Jalan Tjilik Riwut km.18 dan Lokasi Penambangan Kelampangan. Untuk mengetahui kandungan mineral dalam suatu bahan tambang digunakan peralatan X-RD. Penggunaan X-RD cukup tepat karena X-RD bisa memberikan informasi mengenai struktur material dan nilai sudut kristalnya. X-RD bekerja berdasarkan difraksi sinar X yang dihamburkan oleh sudut kristal material yang dianalisa. Hasil dari penelitian ini adalah memberikan informasi mengenai kandungan material dan nilai sudut kristal yang terukur. Dengan adanya informasi struktur material diharapkan dapat digunakan sebagai informasi awal untuk penerapan dibidang kajian lainnya
Pemberdayaan Masyarakat melalui Pengaplikasian Teknologi Balur Apung untuk Mengatasi Keterbatasan Lahan Pertanian di Daerah Aliran Sungai Desa Tanjong Sangalang, Pulang Pisau: Community Empowerment through the Application of Floating Raft Technology to Overcome Agricultural Land Limitations in the River Basin Area of Tanjong Sangalang Village, Pulang Pisau Kurniawati, Neny; Arifin, Samsul; Andanu, Odi; Dirgantara, Made
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 1 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i1.8289

Abstract

The floating raft technology presents an innovative solution to address the flooding challenges that frequently disrupt agriculture in Tanjung Sanggalang Village, Pulang Pisau Regency. With this technology, floating farming on water surfaces becomes feasible, allowing the land to be no longer affected by floods and enabling farmers to utilize it more effectively, thereby increasing overall agricultural production. Floating raft technology aims to help improve food security and the economy of the Tanjung Sanggalang community by expanding agricultural areas and enhancing crop production. The community service methods include Focus Group Discussions (FGD), material presentations, hands-on practice, and evaluation. The results of the community service show that the practical training on floating raft construction was highly beneficial to all participants. The training met participants' expectations, with 100% of participants reporting that their expectations were fulfilled. Therefore, the training on floating raft construction, seedling, organic fertilizers, pesticides, and harvesting has been successfully conducted.
Sintesis dan Karakterisasi Silika Sekam Padi sebagai Material Self-Cleaning Elsandika, Gabriela; Dirgantara, Made; Beladona, Siti Unvaresi Misonia; Pasaribu, Marvin Horale
Jurnal Fisika Unand Vol 14 No 2 (2025)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jfu.14.2.124-130.2025

Abstract

This study aimed to valorize rice husk waste by extracting silica and developing a self-cleaning surface coating. Silica was successfully extracted from rice husk ash via an alkaline reflux method followed by acid precipitation. The extracted silica exhibited an amorphous structure with a high purity of 96.7%, as confirmed by X-ray diffraction (XRD) and X-ray fluorescence (XRF) analysis. Subsequent modification with Trimethylchlorosilane (TMCS) significantly enhanced the hydrophobicity of the silica, resulting in a contact angle of 99.84° with water. The synthesized silica-based material demonstrates promising potential as a self-cleaning surface coating, offering improved durability and ease of maintenance.
Keanekaragaman Spesies Kupu-kupu (Lepidoptera) pada Habitat Ekowisata Kawasan Hutan Desa Tahawa Kabupaten Pulang Pisau Tuju, Fandi; Fatiqin, Awalul; Kadafi, Ahmad Muammar; Decenly; Dirgantara, Made; Ulaan, Magdalin; Nugroho, Yuli
Journal of Biotropical Research and Nature Technology Vol. 1 No. 2 (2023): Borneo
Publisher : Prodi Biologi FMIPA Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52850/borneo.v1i2.8976

Abstract

Butterflies are part of biodiversity that is important to be preserved because the presence of butterflies in an ecosystem, especially forests, is very important, both as part of the food chain, pollinators, and food for other animals. This study aims to analyze the species diversity and abundance of butterflies (Lepidoptera) in the habitat of Tahawa Village Forest Area, Pulang Pisau Regency. The research method used an exploratory survey method with a sweeping technique following a transect line and then calculated Shannon-Wiener Diversity Index (H'), Evenness Index (E), and Species Richness Index (R1). Butterflies found in the Tahawa Village Forest Area consisted of 6 families divided into 15 species with a total of 63 individuals. The most species found came from the Pieridae family and the least from the Geometridae family. The Diversity Index (H') obtained a value of 2.38, classified as moderate diversity. The Evenness Index (E) is in the high category with 0.88, while the Richness Index (R1) is at 3.38 which is still classified as low.
Pelatihan Vacuum Frying untuk Produksi Keripik Jamur Tiram di Desa Tanjung Sangalang Pulang Pisau: Vacuum Frying Training for Oyster Mushroom Chips Production in Tanjung Sangalang Village, Pulang Pisau Arifin, Samsul; Dirgantara, Made; Simbolon, Tiur Roida; Dony, Garry William
PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat Vol. 10 No. 6 (2025): PengabdianMu: Jurnal Ilmiah Pengabdian kepada Masyarakat
Publisher : Institute for Research and Community Services Universitas Muhammadiyah Palangkaraya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33084/pengabdianmu.v10i6.8981

Abstract

The partner in this community service program is the Sangalang Hapakat Farmers Group located in Tanjung Sangalang Village, Kahayan Tengah District, Pulang Pisau Regency, Central Kalimantan. The current problem is the post-harvest processing of oyster mushrooms which is still carried out conventionally. Currently, the oyster mushroom chips production process is carried out using a frying pan so the product quality is not good and does not last long. In addition, the frying process also requires a lot of cooking oil consumption. The solution to this problem is to apply Vacuum Frying technology to the frying process and before packaging. This technology is an oil-saving frying system and the product results are tastier, so that the resulting product can last a long time (last up to 1 month). The method used in this community service uses the method of observing obstacles, solving problems, and analyzing needs as a follow-up to solving problems, then mentoring training on tools and testing the feasibility of tools, use, and maintenance of tools for Partners, as well as mentoring on packaging and product marketing.
Co-Authors Ahmad Muammar Kadafi Decenly Dony, Garry William Elsandika, Gabriela Fandi Tuju Fatiqin, Awalul Karelius, Karelius Kurniawati, Neny Lilis Rosmainar Luqman Hakim Magdalin Ulaan Marvin Horale Pasaribu Muhammad Nawir Novia Toemon, Angeline Odi Andanu Samsul Arifin Simbolon, Tiur Roida Siti Unvaresi Misonia Beladona Yuli Nugroho, Yuli