I need to know the concentration of pectinase enzyme (sigma aldrich) which has stated 5KU, 5U/mg protein (lowry) and lot result 20U/mg protein in the label of the enzyme bottle. This is all it has mentioned. How do I calculate the concentration from this information?
hey everyone, sorry for not been straight forward with the question. I'm asking for U/ml.I think I can find it if the label has mentioned the total volume of enzyme solution. Then I know how much mg in 5KU which is 5000/5=1000mg which I can easily get mg/ml or U/ml which is more appropriate. But the question is pointless if it hasn't mentioned the total volume. Thanks for the replies.
PS My supervisor asked me to prepare a standard graph of enzyme concentration (U/ml) against absorbance(O.D value) for DNS assay instead of a Galacturonic acid standard/glucose standard.(galacturonic acid is not available so he thinks it is better to you this graph than a standard glucose graph)
PS I checked the bottle again.On the bottom side of the bottle it has stated 10 ml.