Solution:

• Single-cell proteins (SCP) refers to edible unicellular microorganisms.
• he biomass or protein extract from pure or mixed cultures of algae, yeasts, fungi or bacteria may be used as an ingredient or a substitute for protein-rich foods, and is suitable for human consumption or as animal feeds.
• Single-cell protein is a generic term for crude or refined protein whose origin is bacteria, yeasts, molds, or algae, microorganisms that usually contain above 40% of crude protein on dry weight bases.