Optimization of biodiesel supply chains based on small farmers: A case study in Brazil

► Analyze biodiesel fuel produced from vegetable oils sourced from family-owned farms. ► Integrated perspective: production, transportation and crushing of oilseeds. ► Based on a mathematical optimization model. ► Real case study on castor oil in the semiarid region of Brazil. ► Results demonstrate the viability of biodiesel production from castor oil.