Characterization and management strategies for process discharge streams in California industrial tomato processing

The California tomato industry is the leading processor of tomatoes in the world. Accordingly, it produces a large amount of solid and liquid byproducts during processing. Some of these byproducts are under-utilized and discarded. There is increasing demand for the conversion of tomato byproducts into value-added products. This study reviews the characteristics of solid residue and process water discharge streams generated at different stages of tomato processing in addition to their current management strategies. Furthermore, relevant policy that governs management of solid and liquid organic byproducts for California tomato processors is discussed. Finally, recommendations for novel and sustainable management strategies are explored.