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Vitamin B12 derived from geneticaly modified spirulina
(scitechdaily.com)
A place for solarpunks working toward a world without speciesism
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We probably need some of the original cultivar of algae to grow (clone). I'm not sure if they can be exported (sold) dry.
The application is often called algaculture or algaeculture, but it's micro in this case, so look for micro-algae.