Catalase is a hemoprotein containing four subunits which decomposes peroxide.
Technical Notes: To remove thymol from Product Code: CTR, measure desired amount of mixed suspension, centrifuge to collect enzyme crystals, remove supernatant. Resuspend crystals in one-half initial volume of water, respin. Discard wash supernatant and dissolve crystals in buffer of choice.
Stability/Storage: All preparations are stable for 12 months at 2-8°C. Lyophilized preparations should be protected from moisture. In addition the Worthington Product Code: CTR should not be stored in plastic.
Unit Definition: One Unit decomposes one micromole of hydrogen peroxide per minute at 25°C, pH 7.0.
Description
Activity
Code
Size
Cat. No.
Price
Catalase, High Activity, Lyophilized
Catalase, lyophilized powder containing 10mM phosphate buffer and serine. Minimum of 300,000 units/vial.
Store at -20°C. PROTECT FROM MOISTURE.
REQUIRES SPECIAL SHIPPING: ICE PACK
Catalase, Suspension
A crystalline aqueous suspension of approximately 6 mg/ml containing thymol as a preservative.
Store at 2-8°C. DO NOT STORE IN PLASTIC: CONTAINS THYMOL.
Catalase, Filtered
Supplied as an aqueous solution of 2X crystallized catalase (Code: CTR without thymol) filtered through a 0.22 micron pore size membrane. Minimum of 30,000 units/ml; 10 ml/vial.
Store at 2-8°C. DO NOT FREEZE.
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