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All Journal Jurnal Dinamis Jurnal Simetris Jurnal Pendidikan Teknologi dan Kejuruan Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Riset Kesehatan Biology, Medicine, & Natural Product Chemistry EMITTER International Journal of Engineering Technology Media Teknika Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi Pertanian Jurnal Basicedu Journal of Saintech Transfer GANEC SWARA Jurnal Inovasi Teknik Kimia JiTEKH (Jurnal Ilmiah Teknologi Harapan) Nutriology: Jurnal Pangan, Gizi, Kesehatan ADMA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Dinamis Jurnal Pijar MIPA Cendekia: Jurnal Kependidikan dan Kemasyarakatan Dikdimas : Jurnal Pengabdian Kepada Masyarakat BIOCITY: Journal of Pharmacy Bioscience and Clinical Community Jurnal Sains, Teknologi dan Kesehatan Alamtana JPT : Jurnal Pendidikan Tematik
Farida Ariani
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Impact Of Fragrant Pandan Leaves Ethanol Extract (Fplee) On Alt And Ast Levels In High-Fat Diet-Induced Rat Sukanty, Ni Made Wiasty; Ariani, Farida; Yunita, Lina
Jurnal Riset Kesehatan Vol 13 No 2 (2024): NOVEMBER 2024
Publisher : Poltekkes Kemenkes Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31983/jrk.v13i2.12112

Abstract

Energy-dense, low-nutrient, and ultra-processed diets rich in fat can be a risk factor for fatty liver disease. Fragrant pandan is a plant that grows widely in Indonesia and is widely used as a herbal plant. This study aimed to determine the potential of fragrant pandan leaf ethanol extract (FPLEE) to reduce ALT and AST levels. It is a posttest control group design experiment. A total of 24 Rattus norvegicus specimens. All groups were given high-fat food for two weeks, except for NC. In the next two weeks, S was induced by simvastatin and FPLEE; T1, T2, and T3 were induced by 8, 16, and 32 mg/200 g BW/day, respectively. The One-Way ANOVA test results showed α=0.000 for ALT and α=0.029 for AST. Post-hoc LSD showed that NC was significantly different from T1, T2, and T3 (p<0.05); therefore, FPLEE was unable to reduce ALT levels. For AST levels, NC was significantly different from C+, T1, and T2 (P<0.05). Thus, T3 (32 mg/200 g BW/day of FPLEE) yielded the best results in reducing AST levels (p>0.05). Based on these results, FPLEE has side effects on liver function, as seen in increased blood ALT levels, but it can reduce blood AST levels.
Development of the Meatball Business in Mutiara District, East Kisaran City Dardanila, Dardanila; Lubis, Rosliana; Ariani, Farida
DIKDIMAS : Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 3 (2024): DIKDIMAS : JURNAL PENGABDIAN KEPADA MASYARAKAT  VOL 3 NO 3 DECEMBER 2024
Publisher : Asosiasi Profesi Multimedia Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58723/dikdimas.v3i3.325

Abstract

The purpose of this activity is to develop the meatball sales business by improving production efficiency and empowering entrepreneurial skills, thus supporting the achievement of SDG 8, namely decent work and economic growth. Meatball business is a popular form of entrepreneurship and has many customers. The partner in this activity is a meatball business owner located on Jalan Sultan Alisabana, Mutiara Village, East Kisaran City. Based on interviews with the business owner, two main problems were found: firstly, the absence of entrepreneurship training attended by the business owner, which hinders the development of their business, and secondly, the absence of a meatball molding tool which causes delays in production, especially during times of high demand. To overcome these problems, the methods used include surveys, location determination, FGDs with local communities, procurement of equipment, and training and mentoring related to the use of meatball molding machines. The results of this activity provide partners with an understanding of how to become better entrepreneurs and how to use meatball molding equipment to increase production efficiency. The use of the meatball molding machine succeeded in increasing the amount of production and speeding up the process of making meatballs. This activity also received a positive response from the community because it facilitates the production process and has the potential to increase partner income. Overall, this activity succeeded in improving the partners' production quality and entrepreneurial skills, as well as contributing to local economic growth.
THE ROLE OF CU ELEMENT AND COMPACTION PRESSURE ON MICROSTRUCTURE AND MECHANICAL PROPERTIES OF AL-CU BINARY ALLOY SYNTHESIZED BY POWDER METALLURGY Suprianto; Muhammad Ramadhan; Almi Syafroza; Farida Ariani
DINAMIS Vol. 11 No. 1 (2023): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v11i1.11940

Abstract

Al-Cu alloys are promising material for engineering field due to their good mechanical properties. These characteristics could be obtained by addition of some elements and correct selected processes parameter. The purposes of this current study to investigate the effect of Cu contents and compaction pressure on microstructure evolution and mechanical properties of the Al-Cu alloy synthesized by powder metallurgy route. High purity Al and Cu elements are used as starting material with composition (21.0, 24.0, 27.0, 30.0, and 33.0) wt.%Cu with 210 MPa of compaction pressure. The varying compaction pressure 160, 180 and 180 MPa were carried for 15 minute holding time. Furthermore, a conventional sintering at 500oC for 1 hour holding time take place. The hardness test resulted that the increases of Cu contents was successfully improved the hardness, which is the maximum hardness 53.2 HV and 71.47 MPa of the compressive strength obtained by 33wt. Cu addition. On the other hand, the varying of compaction pressure resulted the maximum hardness and compressive strength are 25.6 HV and 60.8 MPa respectively for 200 MPa. The microstructure observation shows the increases of Cu promoted more Cu elements dispersed between the aluminum rinh matrix. The increase of compressive strength is encourages finer Al-Cu grain in the microstructure.
Ekstraksi Alginat dari Rumput Laut Coklat (Phaeophyceae) dan Pemanfaatannya Sebagai Pengemulsi (Emulsifier) pada Produk Pangan Ariani, Farida; Yunita, Lina; Dewi, Novianti Tysmala; Sukanty, Ni Made Wiasty; Isasih, Widani Darma
Nutriology : Jurnal Pangan, Gizi, Kesehatan Vol. 4 No. 1 (2023): April 2023
Publisher : Program Studi Gizi, Universitas Bumigora

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30812/nutriology.v4i1.2859

Abstract

Alginate is used as an emulsifier in food production. Its non-toxic, biocompatible, biodegradable, and hydrophilic properties are very promising for industrial use. Alginate can be obtained from brown seaweed because the alginate content in brown seaweed reaches 40% of its dry weight. The alginate extraction process can be carried out in 5 main stages, 1) extraction process using mineral acids, 2) filtering or centrifugation process, 3) re-soaking of the residue using an alkaline solution, 4) precipitation process, and 5) purification. Emulsifiers are molecules that adsorb on the surface of the droplets formed during the homogenization process and form a protective membrane that keeps the droplets from agglomerating. The use of alginate as an emulsifier in food has been carried out by several researchers. The results indicate that alginate substitution in food products has a significant effect on emulsion stability, where the stability of emulsions using alginate is higher than that of emulsions without alginate substitution. In addition, there was a positive interaction between alginate-substituted food products and food products without alginate substitution (control) on storage time. This research aims to provide an overview of the method or process of extracting alginate from brown seaweed (Phaeophyceae) and utilizing alginate as an emulsifier for food.
Optimization of Biodiesel Synthesis from Kapok Seed Oil (Ceiba pentandra) through Transesterification Reaction with a TiO2 Catalyst Rozitawati, Mona; Gunawan, Erin Ryantin; Suhendra, Dedy; Farida Ariani
Jurnal Pijar Mipa Vol. 20 No. 7 (2025)
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v20i7.10514

Abstract

Biodiesel represents a renewable, environmentally friendly, and locally producible alternative to conventional diesel fuel. This research synthesized biodiesel from kapok seed oil (Ceiba pentandra) via transesterification using a TiO₂ catalyst, with process parameters optimized to maximize yield. Kapok seed oil was extracted using Soxhlet extraction with n-hexane and purified by vacuum column chromatography. The transesterification process involved systematic variation of the oil-to-methanol molar ratio, catalyst mass, reaction temperature, and reaction time. Optimal conditions were established at a 1:10 molar ratio, 0.20 g of catalyst mass, a reaction temperature of 60 °C, and a reaction time of 90 minutes, resulting in a biodiesel yield of 71.58%. Characterization of the biodiesel revealed a density of 0.88 g/mL, viscosity of 3.10 cSt, acid value of 1.89 mg NaOH/g, and saponification value of 231.879 mg KOH/g. GC-MS analysis identified methyl palmitate, methyl linoleate, and methyl oleate as the principal methyl ester components, with methyl oleate as the predominant species. These findings demonstrate that biodiesel derived from kapok seed oil possesses properties suitable for use as an alternative fuel that meets established quality standards.
Finite Element Analysis and Root Cause Analysis of Wire Rope Failure in STS Cranes Ariani, Farida; Pulungan, Bgd. Sinomba Pebi Nanda
DINAMIS Vol. 13 No. 2 (2025): Dinamis : In Press
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v13i2.22583

Abstract

Wire rope is a critical lifting component in Ship-to-Shore (STS) cranes, whose failure can lead to catastrophic system breakdowns, posing significant safety risks and operational losses. This study investigates the root causes of wire rope failure on a 40-ton capacity STS crane. The methodology integrates Root Cause Analysis (RCA) with a Finite Element Analysis (FEA) simulation using ANSYS Static Structural. The analyzed wire rope has a 28 mm diameter, a 6x36 IWRC configuration, and is made of galvanized high-carbon steel. Simulation results under full operational load revealed a maximum von Mises stress of 681 MPa, exceeding the material's yield strength (≈650 MPa), a total displacement of 16 cm, and a critically low safety factor of 0.53. The failure location was identified on the outer strands at the contact points with sheaves, indicating high-stress concentration zones. Furthermore, the calculated Safe Working Load (SWL) for a standard safety factor of 5 was 82.83 kN, which is drastically lower than the 400 kN operational load per rope, confirming severe overstress conditions. The RCA fishbone diagram identified key contributing factors: material specification mismatch, suboptimal sheave design, inadequate maintenance protocols, and insufficient design-stage analysis. The study concludes that the wire rope is unfit for service under current conditions and recommends immediate replacement, revised preventive maintenance schedules incorporating FEA, design optimization of support components, and implementation of real-time load monitoring systems.
Study on Thermoelectric Cooler Driven by Solar Energy in Medan City Sitorus, Tulus Burhanuddin; Lubis, Zulkifli; Ariani, Farida; Sembiring, Ferry
EMITTER International Journal of Engineering Technology Vol 6 No 2 (2018)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1352.369 KB) | DOI: 10.24003/emitter.v6i2.303

Abstract

The primary purpose of this study is to investigate the performance of thermoelectric cooler driven by solar energy in Medan city, Indonesia. This cooler able to use in a remote area where electricity is still not available. The cooler could be used to store beverage that must be stored at low temperatures to maintain the freshness such as drink cup. The solar thermoelectric cooler is based on the principles of a thermoelectric module or Peltier effect to create a hot side and a cold side. The cold side of the thermoelectric module is utilized for cooling purposes to the cooling space. The heat from the hot side of the module is rejected to ambient surroundings by using heat sinks and fans. The solar thermoelectric cooler was experimentally tested for the cooling purpose. Experimental results showed that the solar thermoelectric cooler could reduce the temperature of the drink cup from 26oC to 15oC in approximately 40 min. The maximum COP of the cooling system during the experiment was calculated and found to be about 0.356. The effect of weather conditions on the COP value was about 85.90%.
Co-Authors Alfian Hamsi Almi Syafroza Amlys, Amlys Syahputra Silalahi Anisah Bayu Bresman P Siboro Bustami Syam Dahlan Tanjung Dardanila, Dardanila Darlan, Lalu Ahmad Dedy Suhendra Desimal, Iwan Dewi, Novianti Tysmala Dewi, Novianty Tysmala Dian M. Nasution Dwi Widayati, Dwi Eddy Sutadji Elisabeth Ginting Erin Ryantin Gunawan Eva Sartini Eva Sartini Bayu Eva, Eva Sartini Bayu Fahmi Bakrie Ananda Saragih Farel H. Napitupulu Ginting, Elizabeth Hariadi , Hariadi Susilo Hasdari, Hasdari Helmi Rangkuti I Putu Bayu Agus Saputra Ikhsan Siregar Ikhwansyah Isranuri Indra N. T. Jauhari, M. Thontowi Juanda, Rizky Juanda Khalida Syahputri Laksmi Nur Fajriani Lina Yunita Lina Yunita M Tafsin M. Sabri Ma'ruf, Ma'ruf Tafsin Mahadi Marragi M. Muhammad Ramadhan Muhsin, Lalu Busyairi MULYADI Ni Made Wiasty Sukanty Ni Made Wiasty Sukanty Ninsix, Retti Novia Zuriatun Solehah Nur Cholis Nur’ainun Pakpahan, Dion Peni Patriani Pulungan, Bgd. Sinomba Pebi Nanda Raden Mohamad Herdian Bhakti Rahmi M Sari Ramadan, Prima Ramadhan, Muhammad Ramadhan Reflianto, Reflianto Retti Ninsix Rosliana Lubis Rozitawati, Mona Saib Suwilo Sarjana Sembiring, Ferry Sembiring, Ferry Silalahi, Amlys Syahputra Suci N. Sandi Sukanty, Ni Made Wiasty Suprianto Suprianto Susanti, Baiq Indah Susilo, Hariadi Syahrul Abda Syarif, Abdul Azis Tafsih, Ma'Ruf Tafsin, Ma’ruf Terang UHS Ginting Tri Septian M. Tugiman Tugiman Tugiman Tulus Tulus B Sitorus Tulus Burhanuddin Sitorus Tulus Tulus Wahyuni, Dian Eka Mayasari Sri Widani Darma Isasih Yunita, Lina Yunus Nasution, Ahmad Zulhendri Zen Zulkifli Lubis