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ActiBioPure™,EnzymoPure™,生物活性,高性能 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
2-8°C储存。低温运输 。请查阅批次 COA 获取详细规格。
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It produces cefradine from 7-ADCA (7-amino-3-deacetoxy-cephalosporanic acid) and DHME (D-dihydrophenylglycine methyl ester).
Standard
Activity: >50 U/g wet weight
Size of immobilization support: 250~500μm (>95%)
Water content <65%
Enzyme assay: One unit (U) represents the amount of enzyme required for producing1μmol cefradine per min in 0.1M K-phosphatebuffer containing 20mM 7-ADCA and (7-ami-no-3-deacetoxy-cephalosporanic acid) and 20mM DHME(D-dihy-drophenylglycine methyl ester), , pH 7.5 at 28°C.
Application
Cefradine production from 7-ACDA and DHME
Characteristics
·High synthesis activity of cefradiner
·Low degradation activity of ccefradine and DHME
·Fast enzyme reaction(reaction completed in 90 mins)
·High yield synthesis of cefradine (>95%)
Reaction condition
| pH | 8.0 ~ 8.3 |
| Temperature | 10℃ |
| Solvent | Water |
| 7-APRA:HPGM | 1:1.05-1.10 |
| Enzyme amount | 7U/ml |
Scheme for enzyme reaction

Optional reaction conditions (Temperature, pH)

Production instruction
| Category | Contents |
|---|---|
| Materials | - Synthesizing enzyme: Immobilized Cefradine Acylase (80U/g wet, 65% water content) - 7-ADCA, DHME·HCl - Water - Ammonium hydroxide (28%) |
| Condition | - pH: 8.0-8.2 - Temperature: 10℃ - 7-ADCA:DHME: 350mM:385mM(1:1.10) - Enzyme: 7U/ml - Reaction solution: Water |
| Step | 1. Remove the water after washing immobilized enzyme with water more than five times. 2. Dissolve 7-ADCA(350mM) with ammonium hydroxide and water , and then add DHME·HCl (385mM). Adjust pH to 8.0 and volume to 70ml. 3. Pour 6.13g wet enzyme in conversion reactor. 4. Proceed synthetic reaction at 10℃ and 550rpm after pouring substrates. 5. Extract every 60 minutes after 1 hour. Stop the reaction if conversion rate of 7-ADCA is more than 98.5%. 6. Take the reaction solution in reactor. |

Fig 3. Cefradine production from Immobilized Cefradine Acylase
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| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | A1436587 | |
| 分析证书 | A1436587 | |
| 分析证书 | A1436587 |
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