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Spirulina farming

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[[Image:spirulina_farm.jpg|thumb|right|250px300px|Spirulina farm in India]][[Image:various_edible_forms.jpg|thumb|right|250px300px|Spirulina drink, energy bars, chikki, and pills]]
Spirulina is an aquatic micro-organism often referred to as an algae, though it more closely resembles bacteria. It is used as a food supplement to combat malnutrition. 1 gram of spirulina is said to be as nutritious as 100g of spinach or carrots, and is cheaper. It has an extremely high protein content, with 60-70% of its dry weight consisting of a balanced mix of various essential amino acids. Further it is very rich in beta carotene (to produce vitamin A), iron, vitamin B12, ganna-linolenic acid and other micronutrients. It has no cell wall and is therefore very easy to digest.
==Construction, operations and maintenance==
[[Image:harvesting_spirulina.jpg|thumb|right|250px300px|Harvesting spirulina.]][[Image:extruded_spirulina.jpg|thumb|right|250px300px|Extruded spirulina laid out to dry.]][[Image:empty_tank.jpg|thumb|right|150px300px|empty spirulina tank]]
Large Scale: If produced industrially: In green houses, large water tanks (raceway ponds), water, fertilizer, pump/ paddle wheel to move it.
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