The K-CERA measures alpha-amylase activity
The K-BETA3 measures beta-amylase activity
The K-MALTA contains 50 assays each of K-CERA and K-BETA3 so measures beta- and alpha-amylase activity (separately).
K-AMYLSD can be used for measuring alpha-amylase in barley samples (the Amylase SD assay is more sensitive than the K-CERA). Due to the usually higher level of higher alpha-amylase in barley grains the only suggested alteration to the standard procedure is that 0.5 g of milled barley grain is extracted in 25 mL of extraction buffer (instead of 0.5 g extracted in 4 mL).
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