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Question
“Growing Spirulina on a large scale is beneficial both environmentally and nutritionally for humans.” Justify.
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Solution
Spirulina is a cyanobacteria which can be used as a single-cell protein (SCP). Single-cell proteins are the alternate sources of edible proteins derived from microorganisms for animal and human nutrition. Microbes like spirulina can be grown easily on materials like wastewater containing starch, straw, molasses, animal manure, and even sewage. Such utilisation of substrates thus reduces environmental pollution. Also, these microbes serve as a great source of nutrition, as they are rich in proteins, minerals, fats, carbohydrates, and vitamins.
Thus, growing such microbes on a large scale is beneficial both environmentally and nutritionally for humans.
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Assertion: Single Cell Protein is one of the alternate sources of protein for animal and human nutrition.
Reason: Microbes like Spirulina are grown on industrial scale as a good source of protein.
Fill in the blanks
Why are proteins synthesised from Spirulina called single cell proteins?
A 250 kg cow produces 200 g of protein per day but 250 g of Methylophillus methylotrophus can produce 25 tonnes of protein Name this emerging area of research. Explain its benefits.
Match Column I with Column II and find the correct option.
| Column I | Column II |
| A. Acetic acid | (i) Aspergillus niger |
| B. Butyric acid | (ii) Lactobacillus sps. |
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| D. Citric acid | (iv) Acetobacter aceti |
