Method for making plant-based meatloaf or tofu using single cell proteins from microalgae

A method for making a plant-based food product from a microalgae, the method consisting of:

• extracting a protein from a microalgae by:
• adding an alkaline solution to a powder of the microalgae to form a mixture;
• extracting the protein from the mixture at approximately 50° C. for approximately 6 hours;
• centrifuging the mixture for approximately 20 minutes to obtain a protein extract solution of the protein;
• and
• calculating a protein recovery rate from the protein extract solution of the protein;
• modifying a culture condition associated with the microalgae to change an amino acid composition of the protein;
• and
• utilizing the modified protein as a protein flour to create the plant-based food
• product, wherein the plant-based food product is selected from the group consisting of:
• a meatloaf and a tofu.