How long can enzymes be frozen without being degraded?

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Jean-noel Mputu Kanyinda

The difficulty with freezing enzymes is what the defrost cycle enzymes are degraded. It is then necessary to use a cryoprotectant such as glycerol before freezing. Than we can storage 6 months or plus

Adam B Shapiro

You can store most enzymes at -80 C indefinitely.

Kaniaw Rafhat

thanks to all