Abstract

According to the term enzyme specificity, a discussion on measuring method of phytase activity used now showed that the method could not show the order of inorganic phosphates released from sodium phytate to be helpful to classify or group the phytases studied now, but it is still be useful in production units at the grassroots level and preliminary researches of the phytase. The term enzyme specificity could be useful to interpreting accurately the results got by measuring enzyme activity and to judging the advantages and disadvantages of the method to measure enzyme activity. The discussion on the term enzyme specificity here could also be used as an example for students to study and apply the term they met or will meet.