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Item System Dynamic Model of Production Control in Indonesia’s Robusta Coffee Downstream Agroindustry (A case study)(Editora UFLA, 2025-05-19) Herry Purnomo, Bambang; Novita, Elida; Setiawati, Anis; Wahono, Puji; Pradana, Hendra Andiananta; Kurnianto, Mokhamad Fatoni; Pramulya, Rahmat; Rahmah, Devi Maulida; Sutrisno, Adi; Amiluddin, AfifThe small-scale downstream agroindustry of Argopuro robusta coffee often faces problems related to suboptimal production management. The Kahyangan Robusta Coffee Processing Unit (called UPH) produces roasted and ground coffee and has the same problem, often being unable to meet market demand, having excess product and raw material inventory, and quite high production costs. The purpose of this study is to design a system dynamic model for production control that can guarantee the fulfillment of market demand for roasted and ground coffee, reduce excess inventory, and lower production costs. The research results show that until 2025, UPH is still unable to meet market demand (stockout occurs) of 66,25 kg (roasted coffee) and 57,04 kg (ground coffee), product stock volume of 24,6 tons, and total production costs of Rp. 1,34 billion. A policy scenario was developed to handle this unsatisfactory situation by regulating the production rate of roasted and ground coffee through variable settings for the amount of downstream product safety stock, ‘inventory adjustment time’, and ‘time to update demand’. The results of the model simulation show that monthly demand has been met without stockouts. There were savings in production costs of up to 14% and stock reductions for raw materials of 42%, roasted coffee of 14%, and ground coffee of 27,36%. The model has proven to be useful for inventory optimization and cost management. UPH can follow up by controlling the production rate according to the level of downstream product stock so that it can increase its competitiveness.Item Implementation of green supply chain management for sustainable agroindustry in coffee processing unit, a case of Indonesia(Universidade Federal de Lavras, 2023-01-09) Suryaningrat, Ida Bagus; Novita, ElidaWaste management, ecological impact, emission, and water and energy usage were common problems in coffee processing. Green cultivation, green processing or manufacturing, and green distribution as a part of green supply chain management (GSCM) which focuses on the environmental aspects, have a strong role to overcome these common problems. The purpose of this research was to study the smallholder coffee processing unit from the green concept approach in supply chain activities. The field survey, direct visit, and in-depth discussion with key persons were used in this study to reach accurate data. Farming activities, processing, and distribution aspects were also evaluated in detail as part of GSCM. The techno-ecological aspect was assessed in this study using certain criteria to determine the potential of GSCM implementation in the study area. The result of the research area found that minimizing water and optimization of processing waste have been implemented to support green processing indicators. Reducing emissions during distribution has a high potential as an effort to reach the green distribution concept. A high score of techno-ecological feasibility analysis shows that the GSCM concept has a strong potential to be implemented in this research area. Improvement activities were strongly required to support the implementation of the GSCM concept to support this small coffee processing unit.