Circular Bioeconomy of Animal Wastes

Animals and poultry produce a significant amount of waste or by-products on a global scale. They are currently underutilized in high-value applications or used to produce relatively low-value goods like animal feed and pet food. The disposal of some animal by-products poses a significant environmental risk since they cannot be used to produce food or feed. This chapter aims to approach possible solutions to envi-ronmental pollution by highlighting the waste biorefinery as a sustainable bio-based circular economy. The circular bioeconomy is also made possible by incorporating trash into bioprocesses to create valuable goods and metabolites. The concept of a circular bioeconomy which manufactures valuable bioproducts from biological sources aims to reduce environmental pollution. Animals are an essential compo-nent of the modern world economy, and new technologies are needed to upgrade wastes and coproducts and produce high-value products. The successful application of these technologies will address the environmental and productivity challenges that are increasingly important to producers and consumers while also attempting to bring commercial value.