Polyphenol Oxidase Product Information

Source: Mushrooms (Agaricus bisporus)


Polyphenol oxidase (tyrosinase) is a bifunctional, copper-containing oxidase having catecholase and cresolase activity. It is responsible for browning reactions through the phylogenetic scale. The enzyme has a molecular weight of 128 kDa. It is a tetramer containing four atoms of copper per molecule and two binding sites for aromatic compounds including phenolic substrates. There is a distinct binding site for oxygen. The optimum pH range is 6-7.

Unit Definition: One unit causes an increase in the absorbance at 280 nm of 0.001 per minute at 25°C, pH 6.5, using L-tyrosine as substrate.

DescriptionActivityCodeSizeCat. No.Price
Polyphenol Oxidase (Tyrosinase)
A lyophilized powder. Store at -20C. Requires special shipping: Ice Pack.
Store at -20C.
≥500 units per mg dry weight TY 25 ku LS003789 $42.00 Buy Now
100 ku LS003792 $110.00 Buy Now
500 ku LS003793 $315.00 Buy Now
Bulk LS003791 Inquire

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