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All Journal Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Penelitian Sains IJEMS (Indonesian Journal of Environmental Management and Sustainability) Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan JPM-AKA Sainteks: Jurnal Sain dan Teknik
Putri, Fajar Amelia Rachmawati
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Mathematics Mechanical Engineering Physics Public Health Social Sciences

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Optimasi Proses Produksi Tahu Bandung dan Penerapan Industri 4.0 Di IKM Tahu Tansa Bogor Prihadi, Anton Restu; Maimulyanti, Askal; Styani, Erna; Mualim, Ahmad Dzaky; Puspita, Fitria; Putri, Fajar Amelia Rachmawati
Jurnal Pengabdian Masyarakat AKA Vol 4, No 2 (2024): Desember 2024
Publisher : Politeknik AKA Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55075/jpm-aka.v4i2.254

Abstract

IKM Tahu Tansa merupakan salah satu IKM di Kota Bogor yang memproduksi Tahu Bandung. Seiring dengan perkembangan waktu dan peningkatan produksi, IKM mengalami beberapa permasalahan seperti konsistensi kualitas organoleptik tahu yang disebabkan oleh suhu pemasakan dan penambahan garam yang tidak konsisten selain itu keterbatasan alat pada proses penyaringan kedelai. Pada akhirnya, hal ini dapat menimbulkan resiko penurunan kualitas dan kuantitas produksi tahu dan berpotensi meningkatkan biaya produksi yang berdampak pada lonjakan harga jual tahu. Berdasarkan permasalahan tersebut, tim PkM Politeknik AKA Bogor bermaksud untuk memberikan alternatif solusi penyelesaian  permasalahan yang dihadapi yaitu berupa pelatihan metode pengawasan suhu pemasakan agar optimum menggunakan teknologi arduino. Aplikasi ini akan memudahkan pekerja untuk memantau suhu sebenarnya di dalam kuali masak. Proses pemasakan yang optimum akan menyebabkan matinya seluruh bakteri patogen yang terdapat pada adonan tahu. Efektivitas proses pemasakan ini akan dipantau melalui analisis mikrobiologi. Sedangkan konsistensi penambahan garam pada adonan tahu  akan dipantau menggunakan titrimetri metode Mohr. Setelah diuji mutunya terkait kadar garam dan kadar mikroba dapat disimpulkan bahwa tahu bandung yang diproduksi IKM memiliki kualitas yang konsisten dan bebas dari bakter E.coli 
Chitin extraction from house crickets (acheta domesticus) using a green method with sonication heating Shakila, Tasya Nur; Sonia, Gita; Anjani, Cindy Salsabilla; Pambudi, Teguh; Umam, Hilman Imadul; Fauzie, Azis Kemal; Putri, Fajar Amelia Rachmawati
Sainteks: Jurnal Sain dan Teknik Vol 7 No 01 (2025): Maret
Publisher : Universitas Insan Cendekia Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37577/sainteks.v7i01.867

Abstract

Chitin extraction from house crickets (Acheta domesticus) has been optimized by combining a green method using Deep Eutectic Solvent (DES) and sonication heating, thereby reducing environmental impact and improving time efficiency. The extraction process consisted of insect preparation, delipidation, demineralization, and deproteinization. The results show that the green process method with DES and sonication heating is effective in enhancing time efficiency, reducing mineral content by 56.52%, decreasing protein content by 84.94%, and increasing the degree of acetylation by 21%. However, there was a slight difference in the deproteinization results when compared to the cricket samples treated with reflux. FTIR analysis confirmed the purity and structural characteristics of the extracted chitin
Pengaruh jenis asam organik pada ekstraksi kitin dari jangkrik rumah (Acheta domesticus) melalui metode Green Process Sonia, Gita; Umam, Hilman Imadul; Pambudi, Teguh; Fauzie, Azis Kemal; Putri, Fajar Amelia Rachmawati; Shakila, Tasya Nur; Anjani, Cindy Salsabilla
Jurnal Penelitian Sains Vol 27, No 2 (2025)
Publisher : Faculty of Mathtmatics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56064/jps.v27i2.1152

Abstract

Penelitian saat ini bertujuan untuk mengembangkan kitin yang ramah lingkungan dan ekonomis dengan berbagai macam aplikasi menggunakan asam organik untuk demineralisasi jangkrik rumah. Sampel kitin diekstraksi dari jangkrik rumah (Acheta domesticus) dan langkah demineralisasi dilakukan dengan tiga asam organik (sitrat, asetat, dan oksalat). Kitin yang diekstraksi dengan asam asetat pada proses demineralisasi menunjukkan hasil ekstraksi tertinggi dengan hasil sebesar 6% dibandingkan asam organik lainnya. Sedangkan pada proses deproteinasi menggunakan larutan DES (Deep Eutectic Solvent) sampel yang diesktraksi menggunakan asam oksalat berhasil mendapatkan %DP sebesar 97,7% yang artinya hampir seluruh kandungan protein pada sampel berkurang. Pita karakteristik dan gugus fungsi kitin diidentifikasi dengan spektrum FTIR yang menunjukan struktur kitin pada penelitian ini sama dengan kitin komersil. Pada penelitian ini, asam organik sama efektifnya dengan asam mineral untuk demineralisasi jangkrik rumah. Proses yang dikembangkan membuka kemungkinan untuk memproduksi kitin dengan cara yang lebih ramah lingkungan dan dengan biaya yang lebih rendah di banyak sektor industri.
PEMANFAATAN BELALANG SEBAGAI SUMBER KITIN MELALUI PROSES EKSTRAKSI RAMAH LINGKUNGAN Anjani, Cindy Salsabilla; Umam, Hilman Imadul; Pambudi, Teguh; Fauzie, Azis Kemal; Putri, Fajar Amelia Rachmawati
Jurnal Al Ulum LPPM Universitas Al Washliyah Medan Vol. 13 No. 2 (2025): Jurnal Al Ulum: LPPM Universitas Al Washliyah Medan
Publisher : UNIVERSITAS AL WASHLIYAH (UNIVA) MEDAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47662/alulum.v13i2.912

Abstract

This study aimed to extract chitin from rice grasshoppers using the Deep Eutectic Solvent (DES) method. The chitin extraction process involves several stages, namely delipidation, demineralization, and deproteination. In the demineralization and deproteination stages, two extraction methods were compared, namely the conventional method using strong acids and bases and the environmentally friendly method using Deep Eutectic Solvent (DES). The conventional method uses hydrochloric acid (HCl) for demineralization and sodium hydroxide (NaOH) for deproteination. DES is an effective solvent in dissolving proteins without damaging the chitin structure. This success was evidenced by test parameters of fat content from 30.91 to 9.01 with a DL percentage of 70.85%. In the ash content test, it was proven that the % ash content in pure grasshoppers was 4.87% and decreased in the demineralization process to 1.38% for the extraction stage using DES from 1.25 in the extraction process using the conventional method, this shows that the demineralization extraction process was successful in reducing mineral levels. In the protein content test, pure grasshoppers were 53.57% decreased in the deproteination process using DES to 1.11% and in the conventional method using NaOH, it decreased by 1.65%, this proves a decrease in protein content in the deproteination stage. In the chitin extraction process, an infrared spectrum analysis (FTIR) was also carried out on the extracted chitin samples.
Photocatalytic Degradation of Diazinon in Aqueous Solutions Using ZnO Under Visible Light Irradiation: An Advanced Oxidation Process Approach Umam, Hilman Imadul; Pambudi, Teguh; Widianto, Eri; Yuliasari, Fitri; Putri, Fajar Amelia Rachmawati; Nandira, Rantika Sekar; Utami, Marsah Rahmawati
Indonesian Journal of Environmental Management and Sustainability Vol. 9 No. 3 (2025): September
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2025.9.3.105-114

Abstract

Diazinon is a commonly used organophosphate insecticide in agriculture, but its persistence in water and soil presents significant health and environmental concerns. This study investigates the photocatalytic removal of diazinon from aqueous solutions using zinc oxide (ZnO) nanoparticles activated by visible light irradiation. ZnO was chosen due to its excellent photocatalytic properties, including a direct band gap (~3.1 eV), strong oxidative capability, chemical stability, and non-toxic nature, making it a superior candidate for visible-light-driven environmental remediation. Photocatalytic degradation under sunlight was also assessed for comparison. Key operational parameters, such as photocatalyst dosage, solution pH, initial diazinon concentration, and irradiation time, were systematically optimized. The highest degradation efficiency degradation was achieved with 20 mg of ZnO, neutral pH, 30 mg/L an initial concentration, and 60 minutes of irradiation. Kinetic analysis revealed that the process followed zero-order reaction kinetics (k = 1.118; R2 = 0.9962). Notably, visible light irradiation was more effective than sunlight in degrading diazinon. These findings provide important details about the potential of ZnO nanoparticles as an efficient, low-cost, and environmentally friendly photocatalyst for remediating pesticide-contaminated water under sustainable energy conditions.
Community-Based Clean Water Quality Improvement Through Monitoring and Education In A Rural Area Of Karawang Zuhri, Alifa Rahma; Pambudi, Teguh; Umam, Hilman Imadul; Putri, Fajar Amelia Rachmawati
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 11, No 3 (2025): September
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.105233

Abstract

Surface water is the primary source of water for communities but is highly susceptible to contamination that can pose health risks. Telukambulu, a village in Karawang, West Java, faces challenges in household clean water quality. This community service activity aims to evaluate household water quality through the assessment of physical water parameters and screening using water test strips to measure chemical parameters. Analysis reveals that household water is not entirely suitable for daily needs such as drinking and cooking, with chemical parameters like pH, alkalinity, and chlorine levels being inconsistent. Community education was conducted to enhance understanding of the importance of water management, coupled with the application of simple filtration technology for water purification. This solution was designed to be easily adopted and sustainable. The program successfully raised community awareness about the importance of clean water quality and provided practical guidelines for improving household water quality. Through this approach, it is expected that the community can manage water more healthily and support better living standards.
Co-Authors Anjani, Cindy Salsabilla Fauzie, Azis Kemal Hilman Imadul Umam Maimulyanti, Askal Marsah Rahmawati Utami Mualim, Ahmad Dzaky Nandira, Rantika Sekar Prihadi, Anton Restu Puspita, Fitria Shakila, Tasya Nur Sonia, Gita Styani, Erna Teguh Pambudi Teguh Pambudi, Teguh Widianto, Eri YULIASARI, FITRI Zuhri, Alifa Rahma