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INVENTORY : Industrial Vocational E-Journal On Agroindustry
Published by Politeknik ATI Padang
ISSN : -     EISSN : 27231895     DOI : -
Core Subject : Engineering,
Control & Systems Engineering Engineering Industrial & Manufacturing Engineering
INVENTORY mainly focuses on applied research in Agro-industrial systems and its technology. Therefore, INVENTORY will only process and publish submitted research articles or review articles in the area of: 1. Production Planning and Inventory Control 2. Ergonomic and Work Study 3. Product Design and Development 4. Optimization of Production System 5. Information System 6. Manufacturing Facility Design 7. Maintenance System 8. Energy and agro-industrial machinery 9. Related Topic in Industry 4.0 10. Warehouse 11. Procurement 12. Transportation and Distribution 13. Logistic Decision Making 14. Management and measurement of supply chain performance 15. Other related topics with an object of agro-industry, its products (food and non-food) and services (under the decision from editorial board)
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 119 Documents
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Penentuan Rute Optimal dan Alokasi Kendaraan dalam Pendistribusian Beras di Provinsi Kalimantan Tengah Novawanda, Olyvia; Suharjono, Clifton; Sentosa, Leonardy
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 4 No. 1 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v4i1.117

Abstract

Central Kalimantan is one of the most populous provinces in Indonesia where rice has the greatest impact on the calculation of the poverty line. As of August 2022, 0.44 percent of the inflation in Palangkaraya is attributable to rice, which can contribute to an increase in the MPP rate. Margin perdagangan dan pengangkutan (MPP) is a percentage that indicates the increase in rice prices from producers to final consumers, taking into account transportation costs. The objective of this paper is to determine the optimal route and allocation of each vehicle fleet serving each depot, given several constraints using an open-source spreadsheet solver. Vehicle Routing Problem (VRP) is one of the most frequently encountered optimization problems in logistics. In this instance, we optimize the paddy distribution fleet in Central Kalimantan using the VRP method. The results of the data processing led to the choice of the best route that could adhere to all the limitations, demonstrating that the VRP spreadsheet solver could be used for the case in this study. Based on the computations of 13 vehicles, hereinafter referred to as vehicle (V) which serves 100 Customers, it is obtained that V1 will serve 4 Customers, V2 will serve 5 Customers, V3 will serve 26 Customers, V4 will serve 5 Customers, V5 will serve 5 Customers, V6 will serve 6 Customers, V7 serves 3 Customers, V8 serves 4 Customers, V9 serves 14 Customers, V10 serves 5 Customers, V11 serves 3 Customers, V12 serves 11 Customers, and V13 serves 9 Customers.
Analisis Rantai Pasok Jamur Tiram di UMKM Sidimpuan Hiratake Mushroom Dalam Memenuhi Permintaan Ariffien, Afferdhy; Ritonga, Anggita Rahmad; Siswanto, Budi Nur
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v5i1.189

Abstract

Oyster mushrooms, Pleurotus ostreatus, are a type of edible wood mushroom. MSME Sidimpuan Hiratake Mushroom have customer, a family restauran. In order to meet consumer demand with quality and quantity requirements, MSME had issues such as inability to fulfill demand due to insufficient production capacity, and occurrence of returns, where both of these continue to increase. Purpose of this study is to explain the process of supply chain, to find out the actual performance, and to provide some suggestions for improvements to the performance of supply chain. The process flows analyzed in this supply chain are product, information and financial. The product produced by partner farmers is fresh oyster mushrooms, the products that will be sent to restaurant are oyster mushrooms that have been weighed, cleaned and packaged. This research method is qualitative and quantitative. The results of analysis with food supply chain network show that the process flow in the supply chain has been going well. The operational performance measurement results were measured using several supply chain operation reference metrics, that the operational performance of the supply chain cannot be said to be perfect overall. To measure marketing performance, the farmer's share value obtained by partner farmers is 58.3% and the marketing margin for MSME is Rp.5.000. The results of 5 why's analysis, inability to fulfill restaurant's demand was caused due to several things including variations in the growth process as well as limited resources of farmers. Returns are caused by differences in quality control standards and qualifications between restaurant and MSME.
Evaluasi Persediaan Perishable Raw Material Pada Industri Kecil Menengah Makanan Olahan Menggunakan Multi-Item Economic Order Quantity Syahmer, Verra; Rishelin, Nadya; Nata, Refky Adi
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 5 No. 2 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v5i2.203

Abstract

Raw material inventory is a crucial aspect of a business, as it can significantly affect the costs incurred. One type of raw material is perishable raw material, which, due to its nature, relates to shelf life and can impact not only the quantity of inventory but also inventory costs. One business that utilizes perishable raw materials is the small and medium-sized enterprise (SME) producing serundeng, using sweet potatoes and ghost peppers as perishable raw materials. The use of easily spoilable raw materials can be detrimental to SMEs if not managed properly. To avoid losses and improve efficiency, an analysis will be conducted by calculating inventory control. This research employs the multi-item Economic Order Quantity (EOQ) method, considering expiration dates and quantity discounts. The final outcome of the research includes a comparison of inventory levels between conventional methods and the proposed method, along with an analysis of the management implications of the findings. The results indicate that the total inventory costs without utilizing inventory control methods are higher than those using inventory management techniques. Therefore, this study provides insights to SMEs that effective inventory control can help the company not only reduce expenses but also increase revenue.
Redesign User Interface Dengan Metode Design Thinking: Studi Kasus Utami, Ni Made Cyntia; Setyawan, Ferdiansyah Pratama Putra
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 4 No. 2 (2023)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v4i2.138

Abstract

Transformation of production and service processes is a form of change in the industrial revolution era that is supported by systems. One of the components in a company's information system is a web page or known as a website. User Interface in website design is a concern at the CV X company which operates in the interior contracting sector. This research aims to redesign the user interface to suit user needs on the CV X website using the design thinking method. The design thinking method has six stages, namely, empathize, define, ideate, prototype, test, and implement. This research carried out four of the six stages of design thinking. Several research results include a collection of companies' desires to change the layout, content and elements on the website, content regarding SVLK, the use of persuasive words, and navigation features in the website footer that are not yet available in the current design. Defining the problem at the define stage is the elimination of be spoke pages, the use of colors that match the characteristics of the company, the addition of interactive animations, and changes to all elements on the website. The results of collecting ideas at the ideate stage were 9 ideas. The realization of ideas at the prototype stage consists of 3 processes, namely the style guideline creation process, the redesign process, and a comparison of the current design with the redesign results. The process of creating a style guideline includes fonts, colors, button elements, website headers and footers. This research focuses on the website user interface only so that the test and implementation stages related to User Experience (UX) are not analyzed.
Optimalisasi Proses Antrian di Gerai Es Krim KRM Dengan Pendekatan Simulasi ProModel Utami, Ni Made Cyntia; Sitanggang, Bryan Estavan Imanuel; Anggita, I Gusti Agung Mas Putri; Pratiwiningsih, Windhi; Purnami, Ni Luh Dian
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 5 No. 2 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v5i2.213

Abstract

KRM ice cream shop is a popular destination in Sanur, Bali. The intensity of customer visits on regular days is already quite crowded, even more so during the holiday season. Due to the location of Gerai KRM which is adjacent to the road sidewalk, it often causes congestion in the area. The long and less conducive queuing system is the main reason customers discourage coming. This research was conducted during peak hour, namely 11:00 to 13:00 which is lunch time. These data are then tested using the Stat::Fit feature to determine the type of data distribution. This type of data distribution will later be used to determine the length of the system process when tested in ProModel software, more precisely it will be included in the processing sequences section. The research results show that there is an entity of customers in waiting of 6.13% and blocked by 10.10% which is caused by a lack of capacity and service units in the system. Based on the problem, the proposed improvements given by the author are the addition of cashier units and also the queue capacity at the Ice Cream storefront service. The output of the proposed system simulation is a decrease in the percentage of blocked 1.32%. Then the percentage of full in the queue row which became 0% and the percentage of full in the ice cream storefront was reduced to 1.71%.
Pengukuran dan Evaluasi Produktivitas Pada Industri Kecil dan Menengah Menggunakan Pendekatan Green Productivity Purba, Ari Pranata Primisa; Ahmad, Nofan Hadi; Lubis, Rizki Fadhillah
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 5 No. 2 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v5i2.204

Abstract

This research was conducted in one of the Small and Medium Industries engaged in the agro-industry based on meat processing in Padang City by producing ready-to-eat packaged rendang, dry jerky and wet rendang. In the production process, the rendang SME produces waste in the form of solid waste and liquid waste. The purpose of this study was to determine the productivity of rendang SMEs both partially and totally using the green productivity approach so that it can be analyzed in the part that produces the potential for waste to be processed and increase the productivity of the SME. The results of this study are able to provide information on the description of the best productivity improvement strategy options, the level of productivity that has been achieved by the company, and the level of productivity resulting from the implementation of the selected strategy.
Redesain Kemasan Keripik Tempe Menggunakan Metode Quality Function Deployment dan Value Engineering Ernawati, Siti; Muhammad, Katon; Asyari, Hasyim
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 5 No. 2 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v5i2.209

Abstract

The existing Gandhes tempeh chips packaging is not air- and water-tight so it is at risk of damage such as not crispy, easily destroyed, and rancid odor. These packaging problems require packaging development in order to improve the function of the packaging. The purpose of this study is to determine packaging attributes based on consumer preferences to increase the value of Ghandes tempeh chips packaging based on the highest value. Improvement is done by integrating Quality Function Deployment and Value engineering techniques with the help of House of Quality, FAST diagram, and concept combination table. Quality Function Deployment method to identify customer needs by finding weights and technical responses, while Value engineering to analyze packaging functions needed by consumers and recommend the best packaging based on the highest value. The results are 10 attributes that become consumer needs (whats) and 12 technical responses (hows). The results showed 4 alternative packaging concepts that can be made and sorted to determine the best concept in terms of cost and performance. The selected alternative concept is Alternative C with a score of 1.78. The selected packaging specifications include 100 micron metalized paper material, information label, matte finishing, standing pouch, size 17×29 cm, weight 200 grams, ziplock packaging, price per package Rp 2,850, using a combination of red and orange colors. It can be concluded that this proposal is the best proposal in terms of the highest value. This recommendation can be considered capable of fulfilling consumer desires for Gandhes tempeh chips packaging.
Optimalisasi Pengendalian Persediaan Tepung Terigu di UMKM Agung Bakery Aristawidya, Raihana; Usman , Yulita Veranda
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 6 No. 1 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v6i1.220

Abstract

Agung Bakery, a small and medium-sized enterprise (UMKM), produces various types of bread, with pizza bread being one of its flagship products. The demand for pizza bread often fluctuates, posing challenges in optimally managing the inventory of wheat flour raw materials. This study aims to control raw material inventory using the Material Requirement Planning (MRP) method to reduce costs and improve efficiency. The demand forecast for pizza bread for the next year was analyzed using the Linear Regression method. Based on the forecast, the annual requirement for wheat flour raw materials is 4,713 kg. The MRP method with the Lot for Lot (LFL) technique was applied to determine the optimal order quantity and inventory costs. The analysis results show that the order quantity for wheat flour raw materials from March 2024 to February 2025 is 4,700 kg or 188 sacks. The total annual inventory cost is IDR 38,178,717, resulting in a cost efficiency of approximately 4.88%. The application of MRP with the LFL technique also effectively reduced the Bullwhip Effect from 1.85 to 0.12, indicating better control over demand variability.
Studi Potensi Industri Selulosa Nanokristalin dari Tandan Kosong Kelapa Sawit di Indonesia: Analisis SWOT dan Lokasi Pabrik Senjawati , Maria Isfus; Maryam, Maryam; Akli, Khairul; Nadiyah, Khairun
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 6 No. 1 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v6i1.239

Abstract

Oil palm empty fruit bunches (OPEFB), comprising 25-26% of fresh fruit bunches, contain up to 38.70% cellulose, making them a promising raw material for nanocrystalline cellulose (NCC) production. Bioprocess technology for producing NCC from OPEFB has been developed, with potential for industrial-scale application. This research analyzes potential factory locations for NCC production in the Sumbar-Riau region, Indonesia, using the value assessment method and complemented by SWOT, IFE, and EFE analyses. The assessment involved a team of 13 experts from the palm oil industry, including senior management from five different palm oil companies, who contributed to assessment through a Focus Group Discussion (FGD). The Kampar area in Riau was identified as the optimal location, scoring 82 out of 100, based on factors like raw material availability, market access, infrastructure, and labor. The SWOT analysis, supported by IFE (2.05) and EFE (2.65) scores, places Kampar in the S-O strategy quadrant, indicating a strong internal position and significant external opportunities. The recommended location in Kampar, with a production capacity of 2,000 tons/year, offers strategic advantages for NCC production. These results provide valuable insights for stakeholders, including investors, government, and industry, for developing the NCC industry in Indonesia, particularly in the Sumbar-Riau region.
Analisis Beban Kerja Fisik Area Liquiverter Line Beverage Pada Industri Beverage (Minuman Berperisa) Sitorus , Tosty Maylangi; Helmi, Adlina Safitri
INVENTORY: Industrial Vocational E-Journal On Agroindustry Vol. 6 No. 1 (2025)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/inventory.v6i1.241

Abstract

The beverage industry (flavored beverages) is located in West Java, has a mechanized production process using automation and robotics systems. However, in practice there are still activities that are carried out manually, including the process of pouring sugar into the beverage dilution section. In this area there are several ingredients that are mixed, such as sugar and additives, where sugar is poured manually through the T71 tank. Work in this section is carried out by operators who must manually move the sugar pile ± 1 meter closer to the T71 tank, totaling 126 sacks of sugar for one of the products. Regulation of the Minister of Manpower of the Republic of Indonesia Number 5 of 2018, namely physical workload analysis using the Recommended Weight Limit (RWL) and Lifting Index (LI) calculations, is a reference for companies in controlling the workforce to reduce health complaints. Therefore, physical workload analysis will be carried out using the RWL and LI methods on beverage liquiverter section operators, as a form of assessment that has not been done by the industry in the sugar pouring process in the beverage liquiverter section. The LI value obtained is 3.6012 with a high level of risk. Furthermore, from the NIOSH perspective, working with LI≥3 means that the weight of the load lifted exceeds the recommended lifting limit, which is 6,942 kg (RWL), thus posing a risk of spinal injury to the operator. Suggestions as an effort to improve and control the risks of manual material handling based on the literature are the use of checklists to identify the risks of work accidents due to manual material handling, the implementation of safety lectures to improve operator understanding, and the design of workstations.

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