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All Journal Jurnal Gizi Journal of Nutrition College Jurnal Riset Gizi Metode : Jurnal Teknik Industri Jurnal Teknik Industri Terintegrasi (JUTIN) Jurnal Riset Gizi Assyfa Journal of Farming and Agriculture Jurnal Riset Gizi
Enik Sulistyowati
Nutrient Department, Polytechnic Health Ministry of Semarang
Agriculture, Biological Sciences & Forestry Control & Systems Engineering Decision Sciences, Operations Research & Management Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Public Health Other

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Kegiatan Produksi dan Usaha Meminimasi Waste di PT Coats Rejo Indonesia Menggunakan Metode Lean Manufacturing Dari, Siska Wulan; Sulistyowati, Enik
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 4 (2025): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i4.46676

Abstract

Abstract In the manufacturing industry, machine efficiency is a key factor in increasing productivity and reducing operational costs. This study aims to improve the efficiency of the industrial yarn production process at PT. Coats Rejo Indonesia. This company is a manufacturer of high-quality industrial yarn. This study uses an integrated approach between the Waste Assessment Model (WAM) and Value Stream Analysis Tools (VALSAT) to identify and reduce waste in the production process. The goal is to provide recommendations for improvements that can improve the efficiency and competitiveness of the company. The research methods used include direct observation at the production site, interviews with related parties, data analysis, and the application of WAM and VALSAT. The results of the study indicate that the main type of waste identified is Rework. This information will be used to develop appropriate strategies to reduce Rework and improve overall production efficiency.
Analisis Pengukuran Produktivitas Overall Equipment Effevtiveness (OEE) pada Mesin Rotary di PT. XYZ Rizal, Muhammad; Sulistyowati, Enik; Octavia, Ratna Dewi
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 4 (2025): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i4.51442

Abstract

PT. XYZ in the industrial world, increasing productivity and production efficiency is a key factor in achieving company goals, such as reducing defective products, and responding to increasingly stringent market demands. This study discusses the analysis of rotary strip machine productivity using the OEE (Overall Equipment Effectiveness) method which is used to measure the extent to which the rotary strip machine in the company works efficiently and effectively. Based on the results of data processing in this study, it can be concluded that the OEE calculation value obtained on the rotary strip machine at PT. XYZ with an average OEE value in October is 91% in November is 89%, and in December is 86%, in this value category according to JIMP the OEE value above 60% has met the standards set by the Japanese Institute of Plant Maintenance (JIPM) which is 85%. Soit can be considered to have a high effective value.
Analisis Persediaan Bahan Baku Menggunakan Metode Material Requirement Planning (MRP) pada CV. XYZ Ahzam, Muhammad; Sulistyowati, Enik
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 4 (2025): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i4.48106

Abstract

Raw material inventory is an important factor that influences company profits. CV. XYZ is a company engaged in the production of precast concrete. This company has not implemented special methods in planning and scheduling production. So far, companies have only relied on predictions of consumer needs without proper analysis, so they often experience excesses or shortages of raw materials. This research aims to determine the optimal amount of raw material inventory using the Material Requirement Planning (MRP) method. Data collection techniques include interviews, literature study, observations and observations. Calculations are carried out using the lot sizing method to determine the quantity and frequency of orders as well as total inventory costs. The analysis results show that the MRP method using the Periodic Order Quantity (POQ) technique produces lower total costs compared to Economic Order Quantity (EOQ). By applying the MRP method with the POQ technique, companies can optimize raw material inventory and minimize total inventory costs.
Operational Inefficiencies, Bottlenecks, and Poor Layout in Post-Harvest Processes as Barriers to Agro-Industry Productivity and Profitability: A Systematic Literature Review and Case Study Kurniawan, Rudi; usmiyatun, usmiyatun; Sulistyowati, Enik; Ardianik, Ardianik
Assyfa Journal Scientific Essay Vol 3 No 1 (2025): Assyfa Journal of Farming and Agriculture (November)
Publisher : CV. Bimbingan Belajar Assyfa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61650/ajfa.v3i1.618

Abstract

Serious challenges in the agro-industry—such as operational inefficiencies, process bottlenecks, and suboptimal post-harvest facility layouts—directly reduce productivity, product quality, and profitability. While numerous studies have examined agricultural process improvements, a significant empirical gap exists between 2022 and 2026 regarding the comprehensive integration of industrial techniques—particularly Lean Manufacturing, Six Sigma, and Discrete-Event Simulation (DES)—in the context of sustainable food systems. This study aims to identify post-harvest operational problem patterns and the most effective optimization approaches through a PRISMA-based Systematic Literature Review (SLR) and a cross-case study synthesis. Secondary data were collected from publications in Scopus, Web of Science, and Google Scholar from 2022–2026, with analysis including waste mapping, bottleneck evaluation, layout analysis, and process simulation. The SLR results (n=38 articles) indicate that key post-harvest bottlenecks include excessive cycle times, process queues, overhandling, non-linear layouts, and low digital integration. Case studies show that the combination of Lean–Six Sigma–DES can reduce lead time by 15–45%, reduce waste by 20–60%, increase OEE (Overall Equipment Effectiveness) by up to 18%, and increase profitability by 12–30%. This research confirms the significant contribution of industrial engineering in realizing a sustainable agricultural system, increasing supply chain efficiency, and optimizing the added value of the agro-industry, becoming a reference for MSMEs, farmers, and policymakers
Mapping Research Trends in Mangrove Ecosystem Services and Industrial Applications Kurniawan, Rudi; j.ezugwu, umezurike; Sulistyowati, Enik; Riyana, Iis; Hamidah, Nur
Assyfa Journal Scientific Essay Vol 2 No 2 (2025): Assyfa Journal of Farming and Agriculture (May) In Press
Publisher : CV. Bimbingan Belajar Assyfa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61650/ajfa.v2i2.870

Abstract

This research aims to elucidate trends in research related to mangrove ecosystem services and their industrial applications, which are vital for supporting sustainable development aligned with SDG 13 (Climate Action) and SDG 15 (Life on Land). Through a bibliometric analysis of publications from 2015 to 2025, the study seeks to map the evolution of research, focusing on carbon absorption, coastal protection, and mangrove-based industrial biotechnology. The analysis reveals a marked increase in interest regarding the use of mangroves for climate change mitigation and sustainable industry development. It underscores the necessity for interdisciplinary collaboration to effectively bridge academic research with industrial applications, thereby maximizing the benefits of mangroves. Ultimately, while mangroves possess significant potential to support sustainable development goals, an integrated approach is essential to ensure their sustainable industrial application.
Analisis Optimasi Jalur Distribusi Menggunakan Pendekatan (Traveling Salesman Problem) untuk Meningkatkan Efisiensi Biaya Distribusi pada CV. Merdeka Pasuruan Maulidi, M Agus; Sulistyowati, Enik; Riyana, Iis
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 8 No. 4 (2025): October
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v8i4.46624

Abstract

CV. Merdeka is a company engaged in the construction of MWC NU REJOSO and MWC NU NGULING buildings. After seeing the demand for branch expansion, this growth can also be seen in an increase in distribution costs. The main goal is to find the route with the shortest total distance for analyzing this data using the Traveling Salesman Problem method. Based on the results and discussion, it is concluded that manual calculations provide optimal results, namely paths A to B is the shortest route that can be taken with a distance of 14.3 kilometers
Identifikasi Risiko Keselamatan dan Kesehatan Kerja (K3) dengan Menggunakan Metode HIRARC di PT. XYZ Rohman, Abd; Sulistyowati, Enik
Jurnal Teknik Industri Terintegrasi (JUTIN) Vol. 9 No. 2 (2026): April
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jutin.v9i2.58170

Abstract

PT. XYZ is a company operating in the fields of electrical contracting, maintenance services, and the supply of electrical equipment. Activities such as welding and grinding present significant risks of workplace accidents. This report aims to identify and assess these risks using the Hazard Identification, Risk Assessment, and Risk Control (HIRARC) method. The analysis revealed several high-risk hazards, including burns caused by sparks, respiratory problems due to welding fumes, and injuries from grinding debris. To address these risks, PT. XYZ has implemented various control measures such as the use of appropriate Personal Protective Equipment (PPE), the enforcement of Standard Operating Procedures (SOPs) for equipment maintenance, and the provision of occupational safety and health (OSH) training. The application of the HIRARC method has proven effective in systematically managing workplace safety, and it is recommended that the company continue enhancing supervision, safety training, and compliance with established procedures to ensure a safer and more productive work environment.
Co-Authors Abd Rohman, Abd Afifatun Nafisah, Afifatun Ahzam, Muhammad Amalia, Tama Putri Ana Yuliah Rahmawati, Ana Yuliah Dari, Siska Wulan Diana, Alfi Nur Dinata, Budi Wahyu Djati, RR Titis Pitaloka Djatiningsih Setyorini, Djatiningsih Eryani, Riris Hapsari, Bela Amalia Hapsari, Bella Amalia Heni Hendriyani Hermawanto, Roki Iis Riyana Ismoyowati, Catur Sri j.ezugwu, umezurike Johanes Supadi, Johanes Kun Aristiati Susiloretni Madinatul Munawaroh Maulidi, M Agus Muflihah Isnawati MUHAMMAD RIZAL Noviardhi, Astidio Nur Hamidah, Nur Octavia, Ratna Dewi Ramadhanti, Fernandita Mutiara Ria Ambarwati Riski, Lutfir Riyanti, Iis Rudi Kurniawan Safitri, Yeni Liza Sholehuddin Sofiyulloh, Sofiyulloh Sri Noor Mintarsih Sri Sulistyowati Sunarto Sunarto Usmiyatun Usmiyatun Wahananisanti, Zulva Wiwik Wijaningsih Yuniarti Yuniarti