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iwaldron's picture

Using Lactaid Pills from the Drugstore

Tim Best reports success in using Lactaid pills instead of purchasing lactase enzyme.

"I've done 2 parts of the lab recently, and the store-bought lactase seems to work fine. I called Fisher Scientific, and found that depending on the batch the lactase they sell has somewhere between 12000-18000 lactase units per gram. The lactase from CVS is labelled as having 9000 units per pill, so I've just been dissolving 2 pills in 50mL of water, and having each group use 1mL of this solution. The glucose test strips are definitely indicating the presence of glucose when they should, although we've found that it does take more like 5-6 minutes as opposed to 3."

I welcome any additional feedback about this or any other suggestions.


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