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PELATIHAN PEMBUATAN PAKAN IKAN BAGI PEMUDA DAN PEMBUDIDAYA IKAN PADA MASA PANDEMI COVID-19 DI KABUPATEN ALOR Yulianto Tell; Zakarias Adrianto Mautuka; Mando Kolimon; Dina Lande
LOGISTA - Jurnal Ilmiah Pengabdian kepada Masyarakat Vol 5 No 1 (2021)
Publisher : Department of Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Andalas Kampus Limau Manis - Padang, Sumatera Barat Indonesia-25163

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/logista.5.1.272-279.2021

Tingginya harga pakan ikan di pasaran mengakibatkan banyak pembudidaya ikan di kabupaten Alor tidak dapat menyediakan pakan ikan secara berkesinambungan. Kebutuhan pakan ikan selama ini hanya mengandalkan pasokan dari luar melalui bantuan Dinas Kelautan dan Perikanan Kabupaten Alor. Ketika terjadi pembatasan akses akibat pandemi Covid-19 di kabupaten Alor, telah mengakibatkan terhentinya rantai pasokan pakan ikan dari luar. Pada sisi lain, para pembudidaya ikan di kabupaten Alor tidak memiliki pemahaman dan keterampilan dalam memproduksi pakan ikan secara mandiri. Dalam kondisi demikian maka kegiatan pengabdian masyarakat perlu dilaksanakan khususnya untuk meningkatkan pemahaman dan keterampilan pembudidaya ikan. Metode yang digunakan dalam kegiatan pengabdian yakni pelatihan formulasi pakan ikan melalui FGD dan praktek pembuatan pakan ikan. Hasil analisis menunjukkan bahwa tingkat pemahaman peserta sebelum mengikuti pelatihan adalah 58,43% meningkat menjadi 79,76% setelah mengikuti pelatihan. Berdasarkan hasil analisis maka dapat disimpulkan bahwa perpaduan metode pelatihan dalam bentuk FGD dan praktek kerja memiliki dampak positif dalam peningkatan pemahaman peserta. Secara umum kegiatan pelatihan ini telah meningkatkan pemahaman peserta dengan peningkatan pemahaman sebesar 21,33%. Kata kunci: FGD, Covid-19, Pakan Ikan, Formulasi ABSTRACT The high price of fish feed in the market has resulted in many fish farmers in the Alor district being unable to provide fish feed sustainably. The need for fish feed has so far only relied on supplies from outside through the assistance of the Alor Regency Marine and Fisheries Service. When there was a restriction on access due to the Covid-19 pandemic in the Alor district, it had resulted in the interruption of the supply chain for fish food from outside. On the other hand, fish cultivators in the Alor district do not have the understanding and skills in producing fish feed independently. In such conditions, community service activities need to be carried out in particular to improve the understanding and skills of fish cultivators. The method used in the community service was training in fish feed formulation through FGD and practice of making fish feed. The analysis showed that the participant’s level of understanding before attending the training was 58.43%, increasing to 79.76% after attending the training. Based on the results of the analysis, it can be concluded that the combination of training methods in the form of FGDs and practical work has a positive impact on increasing participant’s understanding. In general, this training activity has increased participant’s understanding by increasing understanding by 21.33%. Keywords: FGD, covid-19, Fish Feed, Formulation

Pemanfaatan Biochar Tongkol Jagung Guna Perbaikan Sifat Kimia Tanah Lahan Kering Zakarias Adrianto Mautuka; Astriana Maifa; Martasiana Karbeka
Jurnal Ilmiah Wahana Pendidikan Vol 8 No 1 (2022): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

One of the soil properties related to plant growth and development is soil chemical properties. Soil chemical components include soil pH, c-organic, cation exchange capacity, macro and micro nutrients. One of the efforts to improve soil quality that can be taken is the use of materials classified as soil enhancers, namely biochar. One of the plant biomass that can be used as a source of biochar is corn cobs. Corncob biochar is made by combustion of limited oxygen in a prepared combustion pit. The purpose of this study was to determine the effect of biochar from coconut shell on soil improvement in terms of soil chemical properties (pH, C-organic, N, P, K, C/N, CEC). The results of the study of soil chemical properties on the growth of shallot plants with the addition of biochar were able to increase soil nutrients such as pH, C-organic 6.81%, nitrogen 0.33%, phosphorus 0.10%, potassium 0.56%, and C ratio. /N 20.64 %, CEC 20.64 meq/100g.

The Effect of Storage Time on the Quality of Immersion Oil Made from Kesambi (Scheichera Oleosa) in the Image of Onion Cell Plant Zakarias Adrianto Mautuka; Martasiana Karbeka; Monika Molina; Suratno Suratno
Walisongo Journal of Chemistry Vol 5, No 1 (2022): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v5i1.9338

The need for immersion oil becomes very important in carrying out various laboratory analyses with a microscope to clarify the image of objects with sharp imaging. To answer this need, research has been carried out to find an alternative to immersion oil by utilizing one of the typical Alor plants that grow a lot in dry areas, namely Kesambi. In this study, the results of the immersion oil test from Kesambi which was made in 2016 were compared with the results of the retest of the same oil in 2021 and compared with standard immersion oil to determine the quality of the immersion oil. In the existing stock of Kesambi immersion oil, physical properties analysis, GC-MS, and imaging of onion cells were carried out. The results showed that the comparison of the physical properties of Kesambi immersion oil which was analyzed in 2016 and the results of the re-analysis in 2021 showed that there was no significant difference based on the parameters of density, viscosity, refractive index, acid number, and aperture value. Results GC-MS in standard immersion oil only contained 49.68% benzyl benzoic acid and reanalyzed Kesambi immersion oil found palmitic acid 12.26%, oleic acid 46.46%, stearic acid 5.26% arachidic acid 13, 84%, and other spectra were detected as impurities. Although there were impurities and differences in fatty acid content between the standard immersion oil and the immersion oil from Kesambi that had been stored for five years, there was no difference in the imaging results of onion cells.

Analisis Kualitas Garam Tradisional Di Desa Mausamang Kecamatan Alor Timur Zakarias Adrianto Mautuka; Rambu Yorinata Banik; Martasiana Karbeka
Jurnal Ilmiah Wahana Pendidikan Vol 9 No 1 (2023): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

This study aims to determine the quality of traditional salt in Mausamang Village based on the percentage of water content, NaCl content, KIO3 and Pb levels compared to the standard according to SNI 01-3556-2010. Sampling was carried out at the location of the salt desert in Mausamang Village. The method used in this research is the gravimetric method to determine the water content and the titration method to determine the levels of NaCl and iodine, while the atomic absorption spectrophotometer (AAS) is used to analyze lead (Pb), in the traditional salt of Mausamang Village. The results showed that at 4.51% water content, 5.85% NaCl content, negative KIO3 content and 0.0006024 mg/g Pb metal compared to the standard standard, salt from Mausamang Village did not meet the requirements for consumption.

SINTESIS PUPUK LEPAS LAMBAT BERBASIS KITOSAN-BIOCHAR-UREA SEBAGAI MATERIAL POTENSIAL PELEPASAN NITROGEN Karbeka, Martasiana; Mautuka, Zakarias Adrianto; Lily, Diana Oktovina Tung
Lantanida Journal Vol 12, No 2 (2024)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v12i2.26190

The fabrication of slow-release urea fertilizer beads using chitosan and chitosan-biochar as coating materials has been accomplished. The beads were synthesized by solidifying chitosan-urea and chitosan-biochar-urea hydrogels in a NaOH solution. Characterization of the chitosan-urea composite beads (BKU) and chitosan-biochar-urea beads (BKBU) was conducted through Fourier-transform infrared (FTIR) spectroscopy, along with water intake (swelling) and nitrogen release tests in aqueous media at time intervals of 24, 72, 120, and 168 hours. The FTIR spectra of BKU and BKBU beads displayed functional group peaks associated with biochar (hydroxyl and carboxylate), chitosan (amine and hydroxyl), and urea (amine and carbonyl), along with others supporting group. Water intake rates were 72% for BKU and 81% for BKBU, which impacted nitrogen release patterns. BKU exhibited a faster nitrogen release compared to BKBU, indicating that BKBU is more suitable for use as a slow-release fertilizer due to its more gradual nitrogen release mechanism

Effect of Storage Time Duration on the Quality of Immersion Oirom Kepuh Vegetable Material (Sterculia foetida L) on Imaging of Plant Tissue of Shallot Cell Mautuka, Zakarias Adrianto; Manimoy, Herianus; Koly, Faryda Veronica Lamma; Karbeka, Martasiana; Botahala, Loth
Jurnal Kimia Fullerene Vol 10 No 1 (2025): Fullerene Journal Of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v10i1.709

The dependence of optical microscopes on one of the consumables, especially at high magnification, so that the imaging results are clearly visible or not blurry, is immersion oil. In an effort to answer this need, a study has been conducted to find an alternative immersion oil by utilizing vegetable oil from the kepuh plant (Sterculia Foetida L) from Alor Regency. This study tested the quality of kepuh seed meat oil from soxhlet extraction and purified using the Deguming, Neutralization, Bleaching, Stearin, Centrifugation methods, and stored in glass bottles, wrapped in aluminum foil, and stored at room temperature (25-280C) from 2016 to 2024 (8 years). The test used three parameters, namely first; comparison of physical and chemical properties parameters, namely density, viscosity, refractive index, acid number and Aperture Value for kepuh oil data in 2016 and 2024, were recorded to have changed, but the imaging photographs still provided the same brightness as standard oil. Second; the GC-MS identification parameters showed that, even though there were 32 peaks in the kepuh oil spectrum, and the nomination of two compounds was identified, namely linoleic acid 34.58%, stearic acid 6.98%, the imaging effect was still clearly visible. Third, a comparison of the imaging results of standard immersion oil and immersion oil from kepuh for oil conditions in 2024 showed imaging results that were not significantly different.

Pengaruh Eco-Enzyme Kulit Nanas dan Kulit Jeruk Purut Terhadap Perubahan Nilai pH, TDS, dan COD Limbah Cair Tahu Pibo, Lodia; Koly, Faryda Veronica Lamma; Karbeka, Martasiana; Mautuka, Zakarias Adrianto; Manimoy, Herianus; Botahala, Loth
Jurnal Sains dan Edukasi Sains Vol. 8 No. 2 (2025): Jurnal Sains dan Edukasi Sains
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/juses.v8i2p127-132

Salah satu alternatif dalam pengurangan pencemaran lingkungan akibat adanya limbah cair tahu yaitu penggunaan eco-enzyme sebagai agen bioremediasi. Eco-enzyme merupakan cairan filtrat hasil fermentasi bahan organik, gula molase, dan air. Penelitian ini bertujuan untuk mengetahui waktu dan konsentrasi terbaik eco-enzyme kulit nanas dan kulit jeruk purut dalam meningkatkan nilai pH, serta menurunkan nilai TDS dan COD limbah cair tahu. Metode penelitian yang digunakan yaitu eksperimen dengan konsentrasi eco-enzyme dan waktu penyimpanan sampel sebagai variabel bebas. Cairan/filtrat eco-enzyme kulit jeruk purut dan kulit nanas yang diperoleh memiliki karakteristik berwarna kuning kecokelatan, beraroma asam segar, memiliki nilai pH 6, TDS 113 mg.L-1, dan COD 2.260 mg.L-1. Limbah cair tahu sebelum perlakuan memiliki nilai pH 6, TDS 1.210 mg.L-1, dan COD 1.340 mg.L-1. Hasil pengamatan menunjukkan terjadi penurunan nilai pH hingga 4 pada sampel limbah cair tahu kontrol tanpa penambahan eco-enzyme setelah 20 hari penyimpanan. Hasil perlakuan penambahan eco-enzyme pada limbah cair tahu menunjukkan bahwa eco-enzyme dengan konsentrasi 10% selama 20 hari penyimpanan dapat meningkatkan nilai pH dari 4 menjadi 6. Eco-enzyme dengan konsentrasi 15% dengan penyimpanan selama 10 hari mampu menurunkan nilai COD dari sampel kontrol dengan COD 2.070 mg.L⁻¹ menjadi 50 mg.L⁻¹. Penambahan eco-enzyme pada penelitian ini tidak menurunkan nilai TDS, namun meningkatkan nilai TDS (untuk penyimpanan 20 hari dari 945 mg.L⁻¹ menjadi 1.220 mg.L⁻¹). Hal ini menunjukkan bahwa eco-enzyme memiliki potensi menurunkan nilai COD dan meningkatkan nilai pH karena memiliki kandungan enzyme yang berperan sebagai biokatalis yang mempercepat dekomposisi limbah cair tahu.

Tinjauan Ketersediaan Konsentrasi Senyawa Kimia Utama dalam Semen Curah Lobang, Yafia; Botahala, Loth; Mautuka, Zakarias Adrianto
Widya Teknik Vol. 22 No. 1 (2023): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v22i1.4126

Semen menjadi salah satu kebutuhan utama manusia sebagai bahan konstruksi dalam pembangunan, baik di bidang perumahan, perhubungan, dan lain-lain. Namun semen dengan kualitas rendah akan berdampak pada kualitas pembangunan fisik suatu bangunan. Penelitian ini bertujuan menentukan konsentrasi 4 senyawa utama dalam semen terhadap 4 merk semen di kabupaten Alor yang dikodekan dengan c1, c2, c3, dan c4, dengan menggunakan X-RF dan dilanjutkan dengan analisis menggunakan stoikiometri Bogue. Hasil penelitian menunjukkan bahwa konsentrasi komponen kimia A (Al2O3) tidak ditemukan dalam semen dengan kode semen c1, c2, dan c3, serta konsentrasi komponen kimia (SO3) tidak ditemukan dalam semen dengan kode semen c1, c2, dan c4. Hasil analisis terhadap sampel c3 dan c4 menunjukkan tidak ditemukannya konsentrasi 2 senyawa utama dalam sampel semen yakni C2Sdan C3A. Hal ini dapat diduga bahwa semen kehilangan sebagaian senyawa akibat waktu dan jarak distribusi semen dari produsen ke distributor serta akibat situasi dan kondisi dalam lingkungan distributor.

SINTESIS PUPUK LEPAS LAMBAT BERBASIS KITOSAN-BIOCHAR-UREA SEBAGAI MATERIAL POTENSIAL PELEPASAN NITROGEN Karbeka, Martasiana; Mautuka, Zakarias Adrianto; Lily, Diana Oktovina Tung
Lantanida Journal Vol 12 No 2 (2024)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v12i2.26190

The fabrication of slow-release urea fertilizer beads using chitosan and chitosan-biochar as coating materials has been accomplished. The beads were synthesized by solidifying chitosan-urea and chitosan-biochar-urea hydrogels in a NaOH solution. Characterization of the chitosan-urea composite beads (BKU) and chitosan-biochar-urea beads (BKBU) was conducted through Fourier-transform infrared (FTIR) spectroscopy, along with water intake (swelling) and nitrogen release tests in aqueous media at time intervals of 24, 72, 120, and 168 hours. The FTIR spectra of BKU and BKBU beads displayed functional group peaks associated with biochar (hydroxyl and carboxylate), chitosan (amine and hydroxyl), and urea (amine and carbonyl), along with others supporting group. Water intake rates were 72% for BKU and 81% for BKBU, which impacted nitrogen release patterns. BKU exhibited a faster nitrogen release compared to BKBU, indicating that BKBU is more suitable for use as a slow-release fertilizer due to its more gradual nitrogen release mechanism

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