Order NO. A003789
CAS :[9002-10-2]
多酚氧化酶，源自菇類
| 英文名 | Polyphenol Oxidase (Tyrosinase) | ||
| 級別 | Activity ≥500 U/mg dw | 相關類別 | 必威betway官方网站登录 |
| 儲存 | 冷凍（-20℃） | EINECS編號 | 232-653-4 |
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| 編 號 | 包裝 | 庫存 | 目錄價（￥） | 您的價格（￥） | 數 量 |
| A003789-0025 | 25 KU | 現貨 |  |
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| A003789-0100 | 100 KU | 預計40日內發貨 | |
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| A003789-0500 | 500 KU | 現貨 | |
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產品描述
概述
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.
技術規格
| Source | Mushrooms (Agaricus bisporus) |
| Description | A lyophilized powder. Store at -20°C. |
| Storage | Store at -20°C |
| REQUIRES SPECIAL SHIPPING | ICE Pack |
| Activity | ≥500 units per mg dry weight |
| 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. |
相關文檔
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安全信息
質量控製相關文件
質量報告 (COA)