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For
papain and bromelain, we use the FCC PU method to determine the enzyme
activity. In some cases, bromelain is quoted in GDU activity. GDU
is not a compendial assay and has many variations of this method. We
perform the FCC PU assay, which is compendial, and then convert back to GDU.
I can send you our white paper explanation for the conversion if you let
me know that you would want a copy.
FCC PU Activity Assay Description:
Hydrolysis of casein @ pH 6.0 (UV-Vis spectroscopy)
We offer many
other enzyme assays from the USP or FCC Compendium. We are the only ISO lab
with enzyme assays on our scope of accreditation in the US. Please go to
our website to view the complete list or email me for more testing
capabilities.