The optimum pH of Sunson Phytase Premier I was 3.5 and the pH range was from 2.5 to 5.5. Compared to the current mainstream phytase in international market, Sunson phytase Premier I showed higher activity between pH2.5 to 5.5, which was more suitable for the digestion of phytic acid in animal gastrointestinal tract.
Fig. 1.Relation between phytase activity and pH
Note:The Mainstream phytase means the current mainstream phytase in international market.