189077
It is a genus used for the production of single cell protein s , sources of mixed protein extracted from pure or mixed cultures of algae , yeasts , fungi or bacteria ( grown on agricultural wastes ) used as a substitute for protein-rich foods , in human and animal feeds .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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