I want to collect samples in the course of a fermentation process at different times. After withdrawal of the sample the reaction will still continue. How do I stop the fermentation reaction immediately or shortly after sample collection to analyze the sugar and alcohol contents at a given time?
Dear Adriano Silva,
As far as I do not see any conditions while quenching the further fermentation I would suggest to simply freeze the sample immediately after collection. Apart from this, there are buffers available to alter the fermentation condition. All the best
Freezing the sample was the thing also I thought about. Using potassium sorbate, metabisulfate should do just fine as well. Good luck!
I have samples coming from many different process locations so we checked to see if freezing would be an effective method to hold the sample until analysis time. Samples have been run immediately after collection and a sample frozen and analyzed at a later date to see how close the results would be in terms of alcohol %; very close results. We
now extract and freeze for collection and run many samples at once.
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