This work presents models using linear programming and goal programming to support decision making in the frozen concentrated orange juice planning process with multiple products, stages, and periods. Besides decisions about the production, blending, and juice storage, the models also include orange harvesting plan, which takes into account oranges maturation curves. Thus, the models take into consideration a large portion of the supply chain involved in the frozen concentrated orange juice sector. Another point to highlight is the inclusion of the blending process of different types of juices to match the ratio specification of the product using orange acidity to calculate the ratio specification. To solve the linear programming and goal programming models, an algebraic modeling language and a state of art optimization solver of mathematical programming problems are used. A case study was developed in an orange juice company located in São Paulo State. This company has many facilities and a worldwide distribution system, similar to other companies in this sector. The results show that the proposed approach can be used in real situations.
Linear programming; Goal programming; Blending process; Frozen concentrated orange juice; Production planning with multiple products; stages and periods
