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All Journal IPTEK The Journal for Technology and Science Indonesia Chimica Acta Lantanida Journal Fullerene Journal of Chemistry Jurnal Sains dan Edukasi Sains Jurnal Ilmiah Wahana Pendidikan Jurnal Pustaka Mitra : Pusat Akses Kajian Mengabdi Terhadap Masyarakat Indonesian Journal of Community Empowerment Widya Teknik
Herianus Manimoy
Universitas Tribuana Kalabahi
Religion Agriculture, Biological Sciences & Forestry Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Education Environmental Science Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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PURIFICATION OF DUG WELL WATER FROM Escherichia coli BY USING CARBON OF RICE HUSK Hagar Karlani; Fahrul Fahrul; Maria M Meiwati; Herianus Manimoy; Loth Botahala
Lantanida Journal Vol 8, No 2 (2020)
Publisher : UIN AR-RANIRY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/lj.v8i2.7362

Abstract

Clean water is one of the human's main needs. Dug well water in Tombang, used for various needs. However, the dug well water has been polluted by E. Coli bacteria which is suspected to be due to the disposal of rubbish and waste carelessly and also the distance of latrines and dug wells that are very close together. Therefore it is important to do water purification using agricultural waste that is not utilized. The analysis showed that the purification of dug well water in Tombang with rice husk charcoal had reduced E. Coli bacteria by 55.6% with MPN pattern 1-0-3 so that the MPN value was 11/100 mL of sample.
Modification of Chitosan-Chitosan Phtalate Anhydrides Matrices Lukman Atmaja; Herianus Manimoy; Lina Eka Arizka
IPTEK The Journal for Technology and Science Vol 30, No 3 (2019)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j20882033.v30i3.5504

Abstract

Chitin and chitosan are natural biopolymers on shrimp shells. Chitosan is used extensively as a raw material in various industries. The study aimed to extract chitin and chitosan from fanami shrimp skin through deproteinization, demineralization, and deastilation reactions and to modify the matrix to improve the physical properties. The results of the analysis of the FTIR chitin spectrum shows several major peaks at wave number 3446.91 cm-1 which showed the vibrations of bending secondary amide and amine (NH) secondary amides at 1654.98 cm-1 indicating the presence of vibration stretching CH. The results of the chitosan FTIR spectrum analysis shows symmetrical stretching vibrations at 3433.41 cm-1 due to overlapping OH and amines (NH), stretching vibrations of 1653.05 cm-1 caused by the propagation of C = O stretching and stretching vibrations of 1587.47 cm-1 indicating secondary amide. The results of the characterization with XRD shows that the extracted compounds were chitin and chitosan. In modifying the chitosan matrix, the spectra result show peak at 1656.91 - 1564.32 cm-1 indicating the presence of an amide group. New aromatic group peak found in the area of 1631.83 cm-1 which not found in chitosan. Diffract gram XRD from pure chitosan shows three highest peak peaks at 2θ equal to 609.2; 609.88 and 550 while chitosan-anhydrous modification shows a peak at 2θ equal to 609.8. The addition of anhydrous phthalates to chitosan has reduced its crystallinity which results in an increase in the hydrophilic characteristics of the membrane. The results of this study are expected to be one of the references in further research regarding the manufacture of phthalate chitosan-anhydrous based composite membranes for DMFC
Identifikasi Mineral Pasir Tiga Warna Pantai Puntaru Kabupaten Alor-NTT Martasiana Karbeka; Herianus Manimoy; Bertho A Abolasinga
Jurnal Kimia Fullerene Vol 6 No 1 (2021): 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.v6i1.258

Abstract

Puntaru beach is famous for its three-colored sand that is mixed into one of them reddish-brown, black, and white sand. Research on the mineral composition of the tricolor sand has been conducted so that the use of three-colored sand is still done traditionally. This study aims to obtain information on the silica content and other mineral compositions of the three-colored sand of Puntaru Beach as initial data for further development. The three-color sand preparation process is carried out by the method of milling / crushing sand samples then sieving and washing with H2O. Stages of characterization of silica in three-colored sand were carried out using X-ray fluorescence (XRF), X-ray powder diffraction (XRD), and Fourier-transform infrared (FTIR). The analysis showed that the percentage of Si was the most dominant 45.28%, followed by Fe 25.94% and other minor elements. XRD results show that the three-colored sand contains quartz mineral (SiO2) identified at the main peak with 2 with in the 24.34 ° area. The black color of the sand is influenced by Fe content of 25.94% with hematite metal oxide (Fe2O3) 15.80% and reddish-brown influenced by the presence of sulfur (3.25%) in the form of mineral SO3 4.32%.
Pelatihan Pembuatan Pupuk Bokashi di Desa Luba Loth Botahala; Herianus Manimoy; Martasiana Karbeka; Tersia Pen'au; Asgat Karmani
Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat) Vol 2 No 4 (2022): Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat)
Publisher : Pustaka Galeri Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55382/jurnalpustakamitra.v2i4.325

Abstract

Perubahan iklim yang sangat ekstrim telah berdampak kepada terjadinya berbagai fenomena penyimpangan cuaca dapat terjadi secara alami maupun karena adanya aktifitas manusia. Salah satu dampak yang sangat dirasakan masyarakat petani adalah tidak sehatnya pertumbuhan tanaman penunjang kehidupan rumah tangga seperti hortikultura, serta tanaman pertanian dan perkebunan lainnya. Hal ini mengakibatkan adanya penurunan pendapatan sehingga dapat berdampak kepada peningkatan angka kemiskinan. Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah melakukan edukasi dan pelatihan pembuatan pupuk bokashi dari bahan organik seperti limbah dan sampah yang tersedia di sekitar masyarakat. Kegiatan pengabdian kepada masyarakat ini dilaksanakan di aula kantor desa Luba Kecamatan Lembur Kabupaten Alor. Kegiatan ini dilaksanakan dalam dua tahapan yakni ceramah dan praktik. Kegiatan ini dihadiri oleh aparat desa Luba dan perwakilan kelompok tani desa Luba. Hasil pelaksanaan pengabdian kepada masyarakat menunjukkan bahwa setelah mendengarkan penjelasan dari narasumber, masyarakat perwakilan kelompok tani desa Luba dengan antusias bersama tim pengabdian menyediakan bahan-bahan pembuatan pupuk bokashi, seperti rerumputan dan dedaunan, batang pisang, serbuk kayu hasil gergaji, kotoran hewan, air bekas cucian beras, dan EM-4. Kelompok masyarakat perwakilan kelompok tani desa Luba dengan penuh semangat melakukan praktik pembuatan pupuk bokashi sesuai prosedur yang telah diuraikan dalam ceramah. Pelaksanaan pengabdian kepada masyarakat ini memiliki kelebihan dan kekurangan. Kelebihannya adalah pelatihan ini tidak hanya menyampaikan materi melalui ceramah saja tetapi sampai kepada tahapan melakukan praktik. Sedangkan kekurangannya adalah kegiatan ini dilakukan hanya sampai pada tahap prosess dan output saja tetapi tidak sampai kepada tahap outcome. Oleh karena itu untuk pengabdian kepada masyarakat selanjutnya terkait pembuatan pupuk bokashi ini sebaiknya sampai kepada outcome sehingga dapat diketahui dampaknya kepada peserta.
Membranes with Chitosan-Chitosan/Phthalate Matrix and Montmorillonite-Carbon Nanotubes Filler for DMFC Applications Manimoy, Herianus; Botahala, Loth; Mautuka, Zakarias
Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) Volume 17, No 1: June 2024
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70561/ica.v17i1.32613

Abstract

Composite membranes consist of matrix and filler. The matrices used are C and CP. Meanwhile, the filler used is MMT-CNT. The aim of this research is to improve the properties and performance of composite membranes by reviewing the effect of adding montmorillonite particle filler as a matrix and MM-Carbon as a filler. The membrane was made using the phase inversion method and solvent evaporation. The physical characterization carried out was FTIR, XRD, and SEM. Meanwhile, for characterization of membrane performance, namely swelling, methanol uptake, ion exchange capacity, methanol permeability, proton conductivity, and TGA. The results of this characterization showed that the optimum membrane was found at C 1.96 - CP 0.09/ MMT-CNT. In this membrane, methanol permeability was found to be 2.64x10-6 cm2/s, proton conductivity was 3.352x10-6 S/cm, selectivity was 1.2714 Ss/cm3, and membrane stability at a temperature of 290°C. So the optimum composition is C 1.96 grams, CP 0.09 grams, and MMT-CNT 0.129 grams.
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

Abstract

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.
Study Of Chemical Concentration Of Main Ingredients For Making Portland Composite Cement Loth Botahala; Herianus Manimoy; Yuwinta Erlina Tonu Lema; Eflin Dollu Klaping; M. Tang
Widya Teknik Vol. 20 No. 1 (2021): May
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33508/wt.v20i1.3020

Abstract

This study aims to determine the concentration of the main raw material compounds of cement making before adding limestone additives and determining the compressive strength and porosity and water absorption of cement before adding limestone additives. The result showed that cement with the concentration of 3CaO.SiO2 = 96,9%; 2CaO.SiO2 = negative; 3CaO.Al2O3 = 4,4%; 4CaO.Al2O3.Fe2O3 = 9.7%. If added limestone additive then it will decrease the adhesiveness and create a very wide pore can make a building becomes fragile. Such concentrated cement can not withstand the reaction of other particles from the air.
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

Abstract

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.
Analisis Kualitas Briket Arang Kulit Kelapa Muda sebagai Solusi Energi Alternatif di Kawasan Wisata Bahari Koly, Faryda Veronica Lamma; Manimoy, Herianus; Lonapadara, Martina
Jurnal Ilmiah Wahana Pendidikan Vol 10 No 10 (2024): Jurnal Ilmiah Wahana Pendidikan
Publisher : Peneliti.net

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.11415743

Abstract

Kulit kelapa muda selama ini menjadi limbah khususnya pada kawasan wisata bahari. Menumpuknya kulit kelapa muda dapat menimbulkan sejumlah dampat negatif bagi kesehatan manusia dan mengurangi keindahan lingkungan. Kulit kelapa muda mengandung sejumlah selulosa dan lignin sehingga berpotensi untuk dijadikan briket arang, yang kemudian dapat menjadi solusi energi untuk kuliner bakaran di loaksi wisata. Penelitian ini bertujuan untuk menganalisis kualitas briket arang kulit kelapa muda dengan variasi penambahan tepung tapioka. Parameter yang dianalisis yaitu kadar air, kadar abu dan nilai kalor. Hasil penelitian menunjukkan bahwa sampel BT5, BT10, BT15 dan BT20 memiliki kadar air yang belum memenuhi standar SNI, sedangkan kadar abu dan nilai kalor telah memenuhi standar SNI 01-6235-2000.
Pemanfaatan Jamu KU-HE-SE Sebagai Penunjang Kesehatan Masyarakat di Desa Manatang, ABAD Selatan, Kabupaten Alor Botahala, Loth; Manimoy, Herianus; Dony, Petrus Mau Tellu
Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat) Vol 5 No 6 (2025): Jurnal Pustaka Mitra (Pusat Akses Kajian Mengabdi Terhadap Masyarakat)
Publisher : Pustaka Galeri Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55382/jurnalpustakamitra.v5i6.1340

Abstract

Masyarakat pedesaan umumnya memiliki tingkat aktivitas fisik yang tinggi sehingga sering mengabaikan istirahat, pola makan, dan perawatan kesehatan. Kondisi tersebut berpotensi menurunkan daya tahan tubuh dan meningkatkan risiko gangguan kesehatan. Salah satu alternatif solusi berbasis kearifan lokal adalah pemanfaatan jamu tradisional KU-HE-SE, yaitu campuran kunyit, jahe, dan serai, yang telah terbukti mengandung senyawa bioaktif, aktivitas antioksidan, dan nilai gizi yang bermanfaat. Tujuan kegiatan ini adalah meningkatkan pengetahuan dan keterampilan masyarakat pedesaan dalam memanfaatkan jamu KU-HE-SE untuk menunjang kesehatan. Metode pelaksanaan meliputi edukasi, demonstrasi pembuatan jamu, serta evaluasi melalui kuesioner pre-test dan post-test pengetahuan masyarakat. Data kuantitatif menunjukkan peningkatan signifikan rata-rata skor pengetahuan masyarakat dari 56,3% (pre-test) menjadi 85,7% (post-test). Hasil pengabdian memperlihatkan bahwa masyarakat tidak hanya memahami manfaat jamu KU-HE-SE, tetapi juga mampu memproduksinya secara mandiri untuk konsumsi harian. Dengan demikian, program ini berkontribusi terhadap peningkatan kesehatan masyarakat pedesaan melalui pemanfaatan herbal lokal yang murah, mudah diakses, dan berbasis kearifan lokal.
Co-Authors Asgat Karmani Bertho A Abolasinga Botahala, Loth Eflin Dollu Klaping Fahrul Fahrul Faryda Veronica Lamma Koly Hagar Karlani Lina Eka Arizka Lonapadara, Martina Lukman Atmaja M. Tang Maata, Julinda Mallau, Salomi Maria M Meiwati Martasiana Karbeka Mautuka, Zakarias Petrus Mau Tellu Dony Pibo, Lodia Tersia Pen'au Yuwinta Erlina Tonu Lema Zakarias Adrianto Mautuka