A biorefinery model for the production of oil and biomethane using castor plants

This study investigated the effects of two nitrogen fertilization levels on seed and oil yield, and the biomethane production from castor husks residue. A biological pretreatment using two white rot fungi was adopted to reduce the lignin content of capsule husks and enhance biomethane production. The study aimed to highlight the potential of castor plants as energy crops using a biorefinery approach to produce biodiesel from the oil and biomethane from the residual biomass in order to reduce agricultural waste.