13 Single Cell Protein Example: Explanation You Should Know

Single cell protein example is the dried and dead cells of microorganisms like yeast, bacteria, fungi and algae that can be used as a food or feed supplement due to high protein source. 

  • Aspergillus niger
  • Rhizopus cyclopean
  • Saccharomyces cerevisiae
  • Candida tropicalis
  • Spirulina
  • Aspergillus fumigatus
  • Chlorella pyrenoidosa
  • Chondrus crispus
  • Pseudomonas fluorescens
  • Candida utilis
  • Lactobacillus
  • Bacillus megaterium
  • Methylophilus methylotrophus

Aspergillus niger:

Aspergillus niger is a member from the group of fungi (Aspergillus niger AS-101)

single cell protein example
Aspergillus niger
Image credits: Wikimedia

Aspergillus niger is a cellulolytic mold, which is efficiently used to produce single cell protein by using the raw materials like alkalic corn cobs.

Rhizopus cyclopean:

Rhizopus cyclopean is also a member from the group of fungi.

Rhizopus cyclopean
Image credits: Flickr

Rhizopus cyclopean are rich in protein that are truly used in the production of single cell protein.

Saccharomyces cerevisiae:

Saccharomyces cerevisiae is referred to as the king of microbes in the case of biotechnology, microbiology and genetic manipulative techniques.

Saccharomyces cerevisiae is often prefered for single cell protein as it has high rich content of protein about 44.6% in recent research studies.

Candida tropicalis:

The candida tropilis is a fungi with division- ascomycota and class-Saccharomycetes, order- Saccharomycetales, family- Saccharomycetaceae and genus- Candida species- C. tropicalis

Sugarcane bagasse hemicellulosic hydrolysate (SBHH) was found to be a suitable substrate for yeast single cell protein production in Candida tropicalis. 


The word, Single cell protein directly refers to spirulina as it is one of the most common and flexible available single cell proteins in the world market.

Spirulina culturing is one of the best businesses in the market as the yield is rich protein content.

Aspergillus fumigatus

Aspergillus fumigatus is a member from the group of fungi.

Aspergillus fumigatus
Image credits: Wikimedia

Aspergillus fumigatus is a cellulolytic mold, which is efficiently used to produce single cell protein by using the raw materials like alkalic corn cobs which is similar to aspergillus niger.

Chlorella pyrenoidosa

Chlorella is a uni-celled, green fresh water algae utilized as a single-cell protein source.

Chlorella pyrenoidosa is one of the best examples for the single protein as it is grown in the tofu waste medium for the yield.

Chondrus crispus:

Irish moss, or chondrus crispus, is a popular edible red seaweed found on rocky coasts in the Northern Atlantic.

Research are being conducted in which this species can be used to produce more single cell protein and yield higher.

Read more about Protein

Pseudomonas fluorescens:

Pseudomonas fluorescens is commonly present in the soil or any surface, when grown in a culture medium the typical green color appears so radiantly.

Pseudomonas fluorescens is also one of the examples in the single cell production for its high protein content and low maintenance.

Candida utilis:

Candida utilis is referred to as the edible yeast as it is very safe to consume.

These cells are rich in protein and also their doubling time is less so fast yield can be expected.


Often the term good bacteria comes, when we come to know about Lactobacillus. They are very much useful for the gut.

Image credits: Wikimedia

Lactobacillus is similar to the other examples of single cell protein as they have good protein content and also gut friendly.

Bacillus megaterium:

Bacillus megaterium commonly found in the soil, and they grow really well on the collagen derived subtract for protein synthesis.

Bacillus megaterium is very easy to cultivate and fast growing as well.

Read more about Monomer Of Protein Example

Methylophilus methylotrophus

Methylophilus methylotrophus, from the name we could know it has significant use in the industrial field for the production of methanol

Methylophilus methylotrophus is used as a single cell protein by using substrate friendly medium for higher yield.


This article exclusively has about 13 examples of the single cell protein which are now a blooming field in the area of biotechnology, microbiology, genetic engineering.

Sugaprabha Prasath

Hello, I am Sugaprabha Prasath, a Postgraduate in the field of Microbiology. I am an active member in Indian association of applied microbiology (IAAM). I have research experience in preclinicals (Zebra fish), bacterial enzymology and nanotechnology. I have published 2 research articles in an International journal and a few more yet to be published, 2 sequences submitted in NCBI-GENBANK. I am good at clearly explaining the concepts in biology both basic and advance level. My area of specialization is biotechnology, microbiology, enzymology, molecular biology, pharmacovigilance. Apart from academics, I love gardening and being with plants and animals. My linkedin profile- https://www.linkedin.com/in/sugaprabha-prasath-66937b1b3/

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