The background for my PhD research is H2020 Decisive project on circularity of peri- and intra-urban areas. The research is trying to solve the problem of food waste over the whole supply chain by combining biorefineries of existing and emerging technologies with integration of ecosystem services. First paper focuses on review of high-value food waste and food residues biorefineries with focus on unavoidable wastes from processing with 148 examples of food waste-based biorefineries, focusing mainly on acids, bioplastics, colorants and enzymes. In the review, we propose new synthesis of food waste definitions as well as sustainable criteria for future implementation of unavoidable wastes within circular economy.