I have been studing how to produce spirulina to supplement our diet with this superfood. If we can do this in a relatively inexpensive and sustainable way we can reduce the vitamins and minerals that cost ever more and are ever more required for health. Grocery store products are increasingly devoid of vital nutrients and loaded up with stuff that is less than health promoting. We grow as much of our produce, meat and dairy as we are able, with garden orchard and aquaphonics, but it is not enough. In the event that grocery store products are not available or to expensive how are we to cope?
My answer is to produce spirulina at home in a continuose supply, so the two of us will have five grams or more a day. Spirulina has over 50% protien and is loaded with amino acids, essential fatty acids and all the minerals required. The only thing missing is vitamin C.
A month ago I purchased a cheap 10 gal aquarium heater and air pump. I bougth some Guillards f2 nutrient, and ordered a 50ml culture of spirulina.
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http://ketomovement.com.au/keto-os-supplement/keto%20os%20supplement I set this all up in a south(sunward) window and put additional light on a timer for 16 hours a day. In summer the light and timer will draw little or no power but now it makes it all work. Now I have to harvest the filaments of algae that stick to the sides and float on the water surface daily. This allows the algae to get sunlight clear thru the media. I place the spirulina in a 50mc strainer and wash it a bit and it is ready to use in a slurpy or in food prperation or to dry. My culture is not very dense yet but I still get 5to10 grams a day dry wieght of spirulina.
After drying thoughly the algae can be powdered and put in capsules for later use. The cheapest spirulina I have found is powder at $22 per pound plus S&H. We do not know if they use high heat or freeze drying and leave an inert product. We do not know if it is tested for contaminants, or if is short some of the nutrients desired. Our spirulina is from out home environment, and spiked with exptra nutrients, and handled to preserve it best
People have used bacteria in a bottle and other products but so far, I've not heard much in the way of positive reviews other than from Friendlies I think.