Comment · Sun, December 29, 2013 · Ceretropic
Yeast production of nicotinamide riboside - Google Patents
What they were answering
shrillthrill · 1 points
My question is how hard would it be to culture it so that one sample would last you an indefinite period. I'm not talking about commercial quantities, just personal use.
It grows readily in anything given the chance and so long as there is fuel they'll continue to live. In large populations in starved conditions, the yeast which dies early donates itself to the rest of the population too. Putting the medium in a fridge will slow the growth significantly while preserving the organisms. You could easily propagate it in juice for example. Though, there's a science to fermentation and sugars produce different alcohols, some are toxic in low amounts (fusols? I forget right now). So deciding what to ferment to produce the largest population to salvage would be the question.
u/MisterYouAreSoDumb · Ceretropic
Just do a yeast starter with some DME malt like homebrewers do. Then use a conical fermenter so that you can harvest off the yeast for the next batch.
Of course I am biased being a homebrewer.