The industrial sector has been responsible for more than a third of global CO2 emissions in recent decades. The food industry, which covers land use, agriculture, refrigeration, heating, packaging, transportation, and other stages of food processing and transformation, directly impacts the environment. Given this scenario, it is essential to seek alternatives that minimize these deleterious effects. The integration of processes proposes to improve the thermal efficiency of combustion systems, reducing costs and emissions, through the technique of carbon capture and biological utilization. This technological route can be accomplished by microalgae-based systems. Therefore, this book project presents a compilation of information on process integration from microalgal systems with application in the food industry.