Articles
<![CDATA[Silver nanoparticle based alcohol sensor manufacturing training for detection of halal drinks ]]>
<![CDATA[Chresiani Destianita Yoedistira]]>;
<![CDATA[Muhammad Hilmi Afthoni]]>;
<![CDATA[Rokiy Alfanaar]]>
<![CDATA[ Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Vol 6, No 4 (2021): November 2021 ]]>
Publisher : <![CDATA[University of Merdeka Malang ]]>
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DOI: 10.26905/abdimas.v6i4.5124
<![CDATA[Nowadays, halal drinks are one of the sectors that get the attention of various parties. Alcohol in beverages is important in determining the halalness of a beverage. Halal detection can be done using chemical sensors. In the Pharmacy Department, knowledge of analysis using sensors is rare. Therefore, this community service program was carried out to introduce qualitative methods of quick and simple alcohol analysis. The participants are students of the Pharmacy Department of STIKES Anwar Medika in Sidoarjo City. Participants are communities engaged in the health sector who have an interest in halal and how to make sensors for halal testing. This program is implemented by making a video on how to make a chemical sensor for alcohol detection. The chemical sensor is a paper-immobilized colloidal silver-based chemical sensor that is easy to apply in various conditions. Based on the results of the color change produced on the filter paper, from green to bluish which indicates that the food or beverage sample contains alcohol. Based on the questionnaire, participants expressed satisfaction with the increase in knowledge about additional tools that are easy and fast to detect alcohol.]]>
<![CDATA[Pemberdayaan Kelompok Masyarakat melalui Usaha Keripik Pisang di Desa Tegalweru, Kecamatan Dau, Malang ]]>
<![CDATA[Yuyun Yuniati Yuniati]]>;
<![CDATA[Melany Melany]]>;
<![CDATA[Kestrilia Rega Prilianti]]>;
<![CDATA[Rokiy Alfanaar]]>
<![CDATA[ JAPI (Jurnal Akses Pengabdian Indonesia) Vol 5, No 1 (2020) ]]>
Publisher : <![CDATA[Universitas Tribhuwana Tunggadewi ]]>
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DOI: 10.33366/japi.v5i1.1794
<![CDATA[Salah satu cara untuk meningkatkan daya saing daerah adalah melalui peningkatan nilai ekonomi produk lokal. Pemanfaatan potensi berupa sumber daya alam secara optimal akan memberikan dampak dalam memacu roda perekonomian di daerah tersebut. Desa Tegalweru yang terletak di Kota Malang, Jawa Timur kaya akan sumber alam seperti cabe, buah tomat, jeruk, dan pisang. Saat panen raya tiba, masyarakat telah memiliki tradisi untuk memanfaatkan dan mengolah hasil buminya sehingga bernilai jual lebih tinggi. Salah satu usaha yang saat ini dikembangkan adalah keripik pisang. Melalui kegiatan pengabdian masyarakat dengan pendanaan Ma Chung Abdimas Grant (MAG), tim pengabdi memilih kelompok pembuat keripik pisang ini sebagai mitra dalam kegiatan pengabdian pada masyarakat skim IbDM (Ipteks Bagi Desa Mitra). Dalam waktu delapan bulan tim bekerja untuk meningkatkan daya saing produk hasil keripik pisang melalui perbaikan kualitas produk, pengurusan ijin Pangan Industri Rumah Tangga (PIRT), dan strategi promosi.]]>
<![CDATA[TES CEPAT UNTUK DETEKSI ALBUMINURIA BERBASIS PERAK IODIDA(AgI) dan METILEN BIRU ]]>
<![CDATA[M. H. Afthoni]]>;
<![CDATA[R. Alfanaar]]>;
<![CDATA[E. Monica]]>;
<![CDATA[R. Rollando]]>;
<![CDATA[W. Swastika]]>;
<![CDATA[P. N. Alfiyandri]]>
<![CDATA[ Jurnal Kimia (Journal of Chemistry) Vol. 16, No.2, Juli 2022 ]]>
Publisher : <![CDATA[Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia ]]>
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DOI: 10.24843/JCHEM.2022.v16.i02.p02
<![CDATA[Albuminuria adalah kondisi adanya albumin pada urin. Adanya albumin dapat menjadi indikator penyakit ginjal dan kardiovaskular. Albumin dapat dideteksi berdasarkan perubahan warna biru menjadi kecoklatan menggunakan sensor perak iodida – metilen biru. Tujuan dari pengembangan tes cepat ini adalah mendeteksi albuminuria pada urin dengan memanfaatkan reagen perak iodida (AgI) dan metilen biru. Sensor kimia yang dikembangkan merupakan sensor kolorimetri yang terimobilisasi kertas dan dideteksi dengan metode scannometri. Analisis perubahan warna sensor untuk albumin pada penelitian ini menggunakan perangkat lunak imageJ. Sensor albumin berbasis perak iodida - metilen biru yang diusulkan memiliki waktu respon 7 menit dengan rentang linier 200 hingga 500 ppm dan batas deteksi adalah 83,039 ppm batas kualifikasi. Sensor memiliki reprodusibilitas (RSD = 2,6917%) dengan waktu pakai lebih dari 5 bulan dengan nilai akurasi 100,662%. Kata kunci: albuminuria, sensor kimia, tes cepat. ABSTRACT Albuminuria is a condition of the presence of albumin in the urine. The presence of albumin can be an indicator of kidney and cardiovascular diseases. Albumin can be detected based on the change of color from blue to brownish using a silver iodide – methylene blue sensor. This rapid test was developed to detect albuminuria in the urine by utilizing silver iodide (AgI) and methylene blue reagents. The chemical sensor was a colorimetric sensor immobilized with paper and detected by scannometric methods. The analysis of the sensor color changes for albumin was carried out using ImageJ software. The proposed silver iodide - methylene blue-based albumin sensor had a response time of 7 minutes with a linear range from 200 to 500 ppm and the detection limit of 83,039 ppm qualification limit. The sensor had reproducibility (RSD = 2.6917%) with a service life of more than 5 months with an accuracy value of 100.662%. Keywords: albuminuria, chemical sensor, rapid test.]]>
<![CDATA[Pemberdayaan Kelompok Masyarakat melalui Usaha Keripik Pisang di Desa Tegalweru, Kecamatan Dau, Malang ]]>
<![CDATA[Yuyun Yuniati Yuniati]]>;
<![CDATA[Melany Melany]]>;
<![CDATA[Kestrilia Rega Prilianti]]>;
<![CDATA[Rokiy Alfanaar]]>
<![CDATA[ JAPI (Jurnal Akses Pengabdian Indonesia) Vol 5, No 1 (2020) ]]>
Publisher : <![CDATA[Universitas Tribhuwana Tunggadewi ]]>
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DOI: 10.33366/japi.v5i1.1794
<![CDATA[Salah satu cara untuk meningkatkan daya saing daerah adalah melalui peningkatan nilai ekonomi produk lokal. Pemanfaatan potensi berupa sumber daya alam secara optimal akan memberikan dampak dalam memacu roda perekonomian di daerah tersebut. Desa Tegalweru yang terletak di Kota Malang, Jawa Timur kaya akan sumber alam seperti cabe, buah tomat, jeruk, dan pisang. Saat panen raya tiba, masyarakat telah memiliki tradisi untuk memanfaatkan dan mengolah hasil buminya sehingga bernilai jual lebih tinggi. Salah satu usaha yang saat ini dikembangkan adalah keripik pisang. Melalui kegiatan pengabdian masyarakat dengan pendanaan Ma Chung Abdimas Grant (MAG), tim pengabdi memilih kelompok pembuat keripik pisang ini sebagai mitra dalam kegiatan pengabdian pada masyarakat skim IbDM (Ipteks Bagi Desa Mitra). Dalam waktu delapan bulan tim bekerja untuk meningkatkan daya saing produk hasil keripik pisang melalui perbaikan kualitas produk, pengurusan ijin Pangan Industri Rumah Tangga (PIRT), dan strategi promosi.]]>
<![CDATA[Effective Recovery of Palladium(II) Ions using Chitosan-Based Adsorbent Material ]]>
<![CDATA[Rokiy Alfanaar]]>;
<![CDATA[Krisfian Tata Aneka Priyangga]]>;
<![CDATA[Arif Cahyo Imawan]]>;
<![CDATA[Jumina Jumina]]>;
<![CDATA[Yehezkiel Steven Kurniawan]]>
<![CDATA[ Journal of Multidisciplinary Applied Natural Science Vol. 3 No. 1 (2023): Journal of Multidisciplinary Applied Natural Science ]]>
Publisher : <![CDATA[Pandawa Institute ]]>
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DOI: 10.47352/jmans.2774-3047.131
<![CDATA[Chitosan is one of the naturally abundant, biodegradable, and low-cost adsorbent materials for metal adsorption purposes. In this work, we evaluated the application of chitosan materials derived from seafood wastes in Depok beach, Yogyakarta, for an effective recovery of the palladium(II) ions. First of all, the seafood wastes were treated to obtain chitin and then followed by the deacetylation process to produce chitosan material with a deacetylation degree of 78.42%. The chitosan material was characterized using Fourier transform infrared (FTIR) spectrophotometer. It was found that chitosan gave high adsorption percentage (90%) for palladium(II) ions due to the complexation with hydroxyl, amino and carbonyl functional groups. The palladium(II) adsorption onto chitosan material followed the pseudo-second-order (R2 = 0.9978) and Langmuir (R2 = 0.9979) models for kinetic and isotherm experiments, respectively, with a maximum adsorption capacity value of 0.70 mmol g-1. The palladium(II) ions could be easily desorbed in 90% percentage using 1.0 M HCl solution from metal-laden chitosan to regenerate the adsorbent material. The chitosan-based adsorbent material did not lose its adsorption capability after three consecutive cycles with no significant structural change as revealed from the FTIR data. These results showed the potential application of natural chitosan materials derived from seafood wastes for the effective recovery of palladium(II) ions.]]>
<![CDATA[A Review: Development of Photocatalyst Materials and Its Performance for Humic Acid Removal in Peatwater ]]>
<![CDATA[Siti Unvaresi Misonia Beladona]]>;
<![CDATA[Riandy Putra]]>;
<![CDATA[Rokiy Alfanaar]]>;
<![CDATA[Miranti Maya Sylvani]]>;
<![CDATA[Elda Alyatikah]]>;
<![CDATA[Riaa Safitri]]>;
<![CDATA[Indri Susanti]]>;
<![CDATA[Rendy Muhamad Iqbal]]>
<![CDATA[ Journal of Peat Science and Innovation Vol. 1 No. 1 (2022): Journal of Peat Science and Innovation: June 2022 ]]>
Publisher : <![CDATA[Center for Development of Science, Technology and Peatland Innovation (PPIIG), University of Palangka Raya ]]>
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DOI: 10.59032/jpsi.v1i1.5380
<![CDATA[Peat is a wetland region in Indonesia with a very high water storage capacity. However, the amount of humic compounds obtained from the accumulation of organic substances in peat makes the water unable to be used for daily purposes. Peat water treatment with several methods has been carried out, such as coagulation, electrocoagulation, flocculation, and filtration. However, the result of clumping or filtering in such a way raises new environmental problems. One method which effective and efficient used in peat water treatment is photocatalytic. Several materials based-semiconductor was developed as a photocatalyst, another modification of photocatalyst is combining the adsorbent as a porous supporting photocatalyst which can improve its performance.]]>
<![CDATA[Kinetics of 4-Nitrophenol Reduction with Black Tea Extract Conjugated Silver Nanoparticle Catalyst ]]>
<![CDATA[Rokiy Alfanaar]]>;
<![CDATA[Yuyun Yuniati]]>;
<![CDATA[Devi Natalia]]>;
<![CDATA[Rasidah Rasidah]]>;
<![CDATA[Lilis Rosmainar]]>;
<![CDATA[Pandu Gizta Rapi Paksi]]>;
<![CDATA[Mulani Jeni Lestari Tampubolon]]>
<![CDATA[ CHEMICA: Jurnal Teknik Kimia Vol 10, No 1 (2023): April 2023 ]]>
Publisher : <![CDATA[Universitas Ahmad Dahlan ]]>
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DOI: 10.26555/chemica.v10i1.25404
<![CDATA[The 4-nitrophenol reduction process is one of the slow methods. One way to increase the rate of 4-nitrophenol reduction reactions is to use a catalyst. In this study, the catalyst used was silver nanoparticles conjugated by black tea extract. The stages that have been carried out in research are the synthesis of conjugated silver nanoparticles of black tea extract, the determination of the kinetic profile of 4-nitrophenol reduction, and the study of the influence of inorganic anions on the reduction of 4-nitrophenol with the presence of silver nanoparticle catalysts. The presence of conjugated silver nanoparticles of black tea extract has been shown to increase the kinetics of the degradation reaction of 4-nitrophenol compounds to 85 times compared to without nanoparticles, by changing the value of the reaction rate constant from 0.00006 to 0.0051. The presence of inorganic anions provides information on the decrease in the rate of reduction reactions of 4-nitrophenol.]]>
<![CDATA[Molecular Modelling Based on TD-DFT Applied to UV Spectra of Coumarin Derivatives ]]>
<![CDATA[Mokhamat Ariefin]]>;
<![CDATA[Rokiy Alfanaar]]>
<![CDATA[ Walisongo Journal of Chemistry Vol 6, No 1 (2023): Walisongo Journal of Chemistry ]]>
Publisher : <![CDATA[Department of Chemistry Faculty of Science and Technology Walisongo ]]>
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DOI: 10.21580/wjc.v6i1.15696
<![CDATA[The optimization of geometry and electronic transition of seven coumarin derivatives for sunscreen activity have been conducted using Orca. DFT methods is applied to find optimum geometry and parameter data is measured like bond length and bond angle. TD-DFT is conducted to get electronic transition to get ultraviolet (UV) spectra. The result shows that the coumarin derivative transition type is n to π* and π to π*. All coumarin exhibits the properties of UV-B protection, however, two out of seven show properties as a UV-A protection. The energy difference HOMO-LUMO shows that coumarin with isopropyl substituent has the smallest energy gap, around 0.1559, whereas coumarin with fluorine atom substituent has the biggest energy gap.]]>
<![CDATA[Penentuan masa kadaluarsa sebagai upaya kontrol kualitas sambal di usaha mikro kecil menengah (UMKM) ]]>
<![CDATA[muhammad afthoni]]>;
<![CDATA[Rokiy Alfanaar]]>;
<![CDATA[Chresiani Yoedistira]]>
<![CDATA[ Jurnal Pengabdian Masyarakat Charitas Vol. 3 No. 01 (2023): Jurnal Pengabdian Masyarakat Charitas ]]>
Publisher : <![CDATA[Program Studi Teknik Industri, Fakultas Teknik, Universitas Katolik Indonesia Atma Jaya Jakarta ]]>
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DOI: 10.25170/charitas.v3i01.4364
<![CDATA[Sambal holds a significant place in Indonesian culinary heritage, reflecting the traditions of past generations. To address the issue of improper sambal storage leading to a shorter shelf life, a new approach in packaging has been introduced. The objective of this community service project is to establish the appropriate shelf life for sambal and provide storage recommendations. Through testing under different conditions, it was found that sambal can last for 4 days at room temperature, while the recommended storage temperature is between 2 and 8 degrees Celsius for a duration of 2 weeks.]]>
<![CDATA[Penyuluhan Penentuan Kualitas Air Tanah di Wilayah Perumahan Grand Sanur Griya Tama II Palangka Raya ]]>
<![CDATA[Rokiy Alfanaar]]>;
<![CDATA[Fatchiyatun Ni’mah]]>;
<![CDATA[Marvin Horale Pasaribu]]>;
<![CDATA[Tety Wahyuningsing Manurung]]>;
<![CDATA[Mokhamat Ariefin]]>;
<![CDATA[Efriyana Oksal]]>
<![CDATA[ Nanggroe: Jurnal Pengabdian Cendikia Vol 2, No 4 (2023): July ]]>
Publisher : <![CDATA[Yayasan Daarul Huda Kruengmane ]]>
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DOI: 10.5281/zenodo.8165319
<![CDATA[Water, the primary need of living things, is indispensable for humans. The use of water is a common thing in the community. One of the community environments that needs water is housing. Grand Sanur Griya Tama II Housing Estate, a housing estate in Palangka Raya City, is one of the places that utilize groundwater to meet clean water needs. In this service, counselling is carried out by determining groundwater quality based on physical and chemical parameters. The community service results show that the groundwater quality in the housing is in accordance with quality standards.]]>
