Reusability and storage stability of the immobilized ω-TA.

<p>Changes in the activity of immobilized enzyme after multiple cycles of magnetic isolation and reuse (A). The activity of immobilized enzyme after multiple cycles of magnetic isolation and reuse at 37°C (the initial activity of immobilized ω-TA defined as 100%). The total elapsed time of the experiment was less than 8 hours. Storage stability of the free and immobilized enzyme (B). The samples were stored at 4°C in PBS for 15 days, followed by determine the residual activity every 3 days.