Question

Single cell protein produced from one of the following microbes is rich in methionine

• A. Spirulina maxima
• B. Methylophillus methylotrophus
• C. Dunaliella salina
• D. Scenedesmus acutus

Answer 1

The correct option is B Methylophillus methylotrophus

Single cell protein is a protein obtained from pure or mixed cultures of algae, bacteria etc. that have 30-70% of protein content in their dry mass. Methylophilyus methylotrophus is a bacterial species that produce single cell protein. This microbe is rich in amino acids. It is used as a food supplement by humans as well as animals. Thus the correct answer is option B.