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All Journal Jurnal Teknik Kimia Abdimas Dewantara JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Jurnal Ilmiah Teknik Kimia KURVATEK JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) G-Tech : Jurnal Teknologi Terapan Nusantara Science and Technology Proceedings AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Journal of Pharmaceutical and Sciences. Jurnal Pelayanan Hubungan Masyarakat
Trianna, Nurul Widji
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Hazard Analysis Critical Control Point (HACCP) Education Shredded Catfish Products at UMKM XYZ Safrina Salsabila; Caezario Budi Kurniawan; Riski Ayu Anggreini; Diana Aqidatun Nisa; Nurul Widji T.
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol 7 No 1 (2023): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : Dewan Pimpinan Daerah (DPD) Perkumpulan Dosen Indonesia Semesta (DIS) Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36339/je.v7i1.707

Abstract

Catfish is the result of freshwater aquaculture which is often found in Mojokerto Regency, East Java. XYZ Micro, Small and Medium Enterprises (UMKM) is a business engaged in the processing of catfish, with shredded catfish as one of its products. Hazard Analysis Critical Control Point (HACCP) is one of the factors that influence the quality of food products, but XYZ SMEs do not understand this. One of the efforts that can be made for the XYZ MSME business in improving its products is by conducting HACCP-related education. The form of activities carried out in this activity is identifying hazards during the production process, which includes observation, analysis and determination of critical points, giving advice, and implementing control measures. The results of these activities were that UMKM XYZ was able to improve the quality of catfish shredded production. This is evidenced by the creation of SOPs at each stage of catfish shredded production. The application of HACCP is expected to improve the quality and safety of catfish shredded products.
PEMANFAATAN EKSTRAK TANIN DAUN KETAPANG SEBAGAI INHIBITOR KOROSI PADA LOGAM DALAM MEDIA HCl 1 M Nur Fitriana Salsabila; Arfan Maulana; Nurul Widji Triana
KURVATEK Vol 8 No 1 (2023): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v8i1.4006

Abstract

A metal degrades through the process of corrosion when electrochemical reactions occur with its surroundings. As long as the metal is exposed to corrosive conditions, the corrosion process will continue to compress the metal, degrading its mechanical properties. The objective of this study is to evaluate the performance and determine the optimum conditions of a corrosion inhibitor extract based on variations in the inhibitor concentration and immersion period. The first step was extracting tanins from ketapang leaves using a 120-minute maseration process (850C temperature and 200 rpm mixing) with a 1:25 solvent ratio. The extract is introduced to the corrosive medium containing the submerged metal in a variation of the immersion period that has been defined for the calculated final weight using the hemp leaf extract concentrations (700, 800, 900, 1000, and 1100 ppm) and the amount of time the samples were submerged (48, 96, 144, 192, and 240 hours) in a 1M HCl solution. The test sample with the addition of an inhibitor concentration of 1100 ppm and a 240-hour immersion time provided the largest results of the experiment with 39.22 % efficiency.
Implementasi Program Bakti Inovasi Mengenai Re-Branding Dan Digital Marketing Pada UMKM Kelurahan Bendo Zainal Abidin Achmad; Nurul Widji Triana; Dewi Puspa Arum; Zalfa Nurrahmah Agustina; Jelita Arinal Haq
Jurnal Pelayanan Hubungan Masyarakat Vol. 1 No. 3 (2023): September : Jurnal Pelayanan Hubungan Masyarakat
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/jphm-widyakarya.v1i3.1004

Abstract

The use of digital technology which is still low and the lack of knowledge in utilizing branding efforts as an effort to introduce products to consumers are still obstacles faced by UMKM Berkah Soybean Crackers. UMKM Kerupuk Soybean Berkah only focuses on product trading but still has not implemented good product branding. UMKM business actors have not fully implemented digital marketing by utilizing social media so that they do not support the expansion and market reach of the products they produce. LPPM lecturers and KKN students collaborated in the Community Service Innovation Program which was carried out by holding training and socialization activities related to product branding strategies and the use of digital marketing in supporting business stability and reaching a wider market. The implementation method is carried out offline which is offered by business actors and some of their workers. The results of the community service activities obtained by UMKM business participants are satisfied with the material presented and increasing awareness of the importance of using product branding as the spearhead of the products produced as well as training in making logos as a product branding effort by practicing directly has increased the ability to make attractive product branding in accordance with the wishes so as to create consumer loyalty to the products produced
Aplikasi Minyak Serai Wangi Sebagai Bioaditif Bahan Bakar Pertalite Muhammad Rafi Rasyfillah; M. Vurqon Alfarizi; Nurul Widji Triana
G-Tech: Jurnal Teknologi Terapan Vol 8 No 4 (2024): G-Tech, Vol. 8 No. 4 Oktober 2024
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/gtech.v8i4.5422

Abstract

Bioadditives are materials to improve the quality of fuel derived from plants. One that has the potential to be used as a bioadditive is citronella oil. Citronella oil can be obtained by several methods, one of which is using the water and steam distillation method. This distillation process is carried out with 1 kg of citronella, 3 liters of water, 100 °C operating temperature, and 2 hours of distillation time. Based on the GC-MS test, citronella oil contains 19.35% geraniol, 1.24% citronellal, and 1.72% citronellol. The mixing ratio is 2:1000; 4:1000; 6:1000; 8:1000; 10:1000 ml, and the stirring time is 1; 2; 3; 4; 5 minutes. This study aims to increase the octane number, calorific value, density, and viscosity of pertalite fuel. The best test results were obtained at 10:1000 ml and 5 minutes, with a calorific value increase of 7.35% and an octane number increase of 2.97%.
Extraction of Pacitan Sweet Orange Peel Pectin as a Bioadsorbent on the Adsorption Process of Fe Metal in FeCl3 Solution Aisyah, Nadhifatuz Zalfa Nur; Anwar, Camelia Asiah Putri; Triana, Nurul Widji
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7085

Abstract

One alternative to treating waste that contains heavy metals is by bioadsorption process from natural materials as adsorbents. In this study, Pacitan sweet orange peel raw material was used as a FeCl3 metal bioadsorbent. This study aims to obtain pectin as a bioadsorbent for Fe metal in FeCl3 solution with the influence of extraction time and temperature on pectin extraction. In this study, pectin was extracted using the direct extraction method with HCl solvent. To prove the characteristics of pectin, FTIR analysis was conducted by observing the C=O group contained in pectin. Atomic Adsorption Spectrophotometer (AAS) analysis was then used to perform pectin adsorption in a FeCl3 solution. The research results show that optimum conditions are achieved at a temperature of 80°C, a contact time of 90 minutes with the addition of a pectin mass of 90 mg obtained an adsorption efficiency of 60.52%. From the isotherm adsorption analysis, Freundlich isotherm was applied to the adsorption of FeCl3 metal with a determination coefficient (R2) of 0.968.
Penurunan Kadar Asam Sianida (HCN) pada Umbi Gadung (Dioscorea Hispida Dennst) Melalui Proses Ekstraksi dengan Kombinasi Konsentrasi NaHCO₃ dan NaCl. Nazua, Hanani; Ainurrohmah, Syafika; Saputro, Erwan Adi; Triana, Nurul Widji
Journal of Pharmaceutical and Sciences JPS Volume 8 Nomor 2 (2025)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36490/journal-jps.com.v8i2.802

Abstract

The utilization of gadung tubers as an alternative food has limitations due to the presence of cyanide content, which can cause poisoning. The cyanide content is cyanogenic glycosides, which can be enzymatically hydrolyzed to form cyanide acid compounds (HCN). The cyanide content in gadung tubers averages around 362 ppm, while the safe limit for consumption of cyanide acid levels is ≤ 10 ppm. This study aims to reduce the cyanide acid content in gadung tubers through a maceration extraction process with a combination of Sodium Bicarbonate (NaHCO₃) and Sodium Chloride (NaCl) solvents so that it complies with the World Health Organization (WHO) standards. Gadung tuber extract was obtained from maceration extraction for 30 minutes in each solvent. Testing methods for cyanide acid in Gadung tubers include Titrimetry, Spectrophotometry, and Organoleptic. The combination of high concentrations of Sodium Bicarbonate (NaHCO₃) and Sodium Chloride (NaCl) can help reduce cyanide acid levels in gadung tubers. The initial cyanide acid level of 47.02 mg/kg can be reduced with the best concentration combination (10:15)%, where the analysis results in titrimetry amounted to 9 mg/kg, while in spectrophotometry it was 9.5 mg/kg. This shows that cyanide acid levels can be reduced by 80-81% so that these levels meet World Health Organization (WHO) standards.
Reduction of Cu and Cr Metal Content in Electroplating Industrial Liquid Waste Using the Ion Exchange Method Khairunnisa, Tsabitah Nabilah; Herazi, Yesi Nabila Zahro; Yogaswara, Rachmad Ramadhan; Billah, Mu’tasim; Triana, Nurul Widji
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7374

Abstract

Electroplating industrial waste contains toxic chemicals that pose risks to health and environment, especially if they enter household wastewater systems. Therefore, treatment is necessary to reduce heavy metal content using the ion exchange method. This study utilized Amberlite IR 120Na resin as the ion exchange medium in electroplating waste. This study aims to reduce metal content in electroplating industrial wastewater using the ion exchange method by evaluating the effects of resin height and flow rate. The process was conducted with variations in flow rate (100 ml/min, 200 ml/min, 300 ml/min, 400 ml/min, 500 ml/min) and resin height (3 cm, 6 cm, 9 cm, 12 cm, 15 cm). The waste was passed through the ion exchange column, and the remaining Cu and Cr metal concentrations were measured. The results indicated that the optimal conditions occurred at a flow rate of 100 ml/min and a resin height of 15 cm, achieving a reduction of Cu metal by 90.16% and Cr metal by 83.36%. The Cu concentration after the process met quality standards under all conditions, while the Cr concentration met quality standards at resin heights of 12 cm and 15 cm. The ion exchange method proved effective in reducing heavy metal pollution.
Synthesis of Sodium Hydroxide from Traditional Salt through Electrolysis Process Ariesta Artamevia, Nazwa; Khonsa Rezkania, Gita; Redjeki, Sri; Triana, Nurul Widji; Santi, Sintha Soraya
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 2 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i2.746

Abstract

Indonesia is expected to compete with other countries in the industrial sector, which plays a crucial role in the economic growth of a nation for its development. In several industries in Indonesia, NaOH plays a critical role in the production process, serving both as a primary component and as a supporting component. In the chemical industry, the chlor-alkali process is a crucial electrolytic technique utilized. The products generated from this process include Cl2, H2, and NaOH. This research utilizes traditional salt as a raw material for the production of NaOH, considering that traditional salt has a high NaCl content and also contains H2O, which is expected to yield NaOH with optimal concentration. This study aims to produce technical-grade NaOH that complies with the Indonesian National Standard (SNI) by examining the effects of electrical voltage and electrolysis time on the NaOH produced through the electrolysis process. The stages of this research include the preparation of a salt solution, the electrolysis process, and product analysis. The study was conducted with an NaCl concentration of 86.72% at electrical voltages of 5, 7.5, 10, 12.5, and 15 volts during the electrolysis process. Additionally, the electrolysis durations used were 100, 150, 200, 250, and 300 minutes. The weight of NaOH produced at an electrical voltage of 12.5 volts and a time of 100 minutes was 1.081 grams of NaOH. Contribution to Sustainable Development Goals (SDGs):SDG 9: Industry, Innovation, and Infrastructure SDG 12: Responsible Consumption and ProductionSDG 8: Decent Work and Economic Growth)SDG 13: Climate Action
Processing of Rice Husk into Bleaching Earth Using the Precipitation Method for Adsorption of Colorants in Palm Oil Haryati, Fidela Lathifa; Andini, Puspa Prima; Triana, Nurul Widji; Susilowati, Susilowati; Suprihatin, Suprihatin
G-Tech: Jurnal Teknologi Terapan Vol 9 No 4 (2025): G-Tech, Vol. 9 No. 4 October 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i4.8024

Abstract

Rice husk waste from rice milling in Indonesia contains high silica, making it a promising raw material for adsorbent synthesis. This research contributes to sustainable waste utilization and supports green technology in palm oil refining, providing both environmental and industrial significance. This study focuses on producing Bleaching Earth from rice husk using the precipitation method and applying it to adsorb colorants in used cooking oil. Rice husk ash (RHA) was reacted with sodium hydroxide (NaOH) to form sodium silicate, which was then precipitated using sodium aluminate (NaAlO₂) and hydrochloric acid (HCl) to obtain silica gel. The process variables were the volume of NaAlO₂ solution (15–35 mL) and stirring time (10–50 minutes). The synthesized Bleaching Earth was analyzed for moisture content, pH, chemical composition (XRF), and surface properties (BET). The best Bleaching Earth met the Indonesian National Standard (SNI 136336-2000), with a moisture content of 2.48–6.01%, neutral pH (~7), and mesoporous structure with pore diameters of 6,49–13.87 nm. The optimal adsorption performance occurred at a pore diameter of 11–12 nm, achieved using 25 mL NaAlO₂ with 50 minutes of stirring or 35 mL NaAlO₂ with 40 minutes of stirring. Application of this BE effectively reduced the color intensity of used cooking oil, producing lighter and clearer oil, confirming rice husk’s potential as an eco-friendly, low-cost source for Bleaching Earth production.
Study on the Effectiveness of CO2 Absorption in Biogas Purification Using Bittern and Alkaline Solutions Hafiza, Putri Nur; Amalia, Felisa Rizky; Suprihatin; Pujiastuti, Caecilia; Triana, Nurul Widji
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 9 No. 3 (2025)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29165/ajarcde.v9i3.801

Abstract

Biogas is a renewable energy source with great potential to replace fossil fuels; however, the presence of CO? and H?S reduces its quality and combustion efficiency, making purification necessary. This study aimed to evaluate the effectiveness of CO? absorption using Bittern and alkaline solutions (3N KOH, 3N NaOH) with absorbent volumes ranging from 600 to 1000 ml. The absorption process was carried out in a bubble column, and the gas composition was analyzed using an Orsat apparatus and titration method. The results indicated that increasing absorbent volume reduced CO? concentration to 10–15% and H?S to below 1.2%, while increasing CH? content to more than 80%, in accordance with SNI 8019:2014 biogas standards. Stepwise absorption (Bittern–KOH/NaOH) was more effective than single absorbents, yielding up to 87% CH? and reducing CO? to 10%. XRF analysis of the precipitate showed calcium (84.58%) and magnesium (14%) dominance, confirming carbonate and sulfate precipitation. These findings demonstrate that Bittern and alkaline solutions are effective absorbents for biogas purification, with stepwise absorption providing the most optimal improvement in biogas quality. Contribution to Sustainable Development Goals (SDGs):SDG 7: Affordable and Clean EnergySDG 13: Climate Action
Co-Authors Ainurrohmah, Syafika Aisyah, Nadhifatuz Zalfa Nur Ajeng Ananda Putri Andini, Puspa Prima anggreini, riski ayu Anwar, Camelia Asiah Putri Arfan Maulana Ariesta Artamevia, Nazwa Arum, Dewi Puspa Bambang Wahyudi Billah, Mu’tasim Caezario Budi Kurniawan Diana Aqidatun Nisa Edi Mulyadi Erwan Adi Saputro Hafiza, Putri Nur Haryati, Fidela Lathifa Herazi, Yesi Nabila Zahro Jelita Arinal Haq Khairunnisa, Tsabitah Nabilah Khonsa Rezkania, Gita Lisa Rizky Amalia M. Vurqon Alfarizi Moenandar, Siswanto Muhammad Rafi Rasyfillah Nazua, Hanani Nur Fitriana Salsabila Pratama Wirya Atmaja Primastiyaningayu, Andini Pujiastuti, Caecilia Rismala, Erika Indri S Siswanto Safrina Salsabila Santi, Sintha Soraya Siswanto Siswanto Sri Redjeki Suprianti, Lilik Suprihatin Suprihatin Suprihatin Suprihatin Suprihatin Susilowati Susilowati Yogaswara, Rachmad Ramadhan Zainal Abidin Achmad Zalfa Nurrahmah Agustina Zelvia Dian Anggreini