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β-Galactosidase

    Specifications

    HS Code

    774215

    Name β-Galactosidase
    Ec Number 3.2.1.23
    Alternative Names Lactase, beta-D-galactoside galactohydrolase
    Molecular Weight Approximately 465 kDa (tetrameric form in E. coli)
    Source Commonly derived from Escherichia coli
    Optimal Ph 6.5-7.5
    Optimal Temperature 37°C
    Substrate Specificity β-D-galactosides (e.g., lactose, ONPG)
    Cofactors None required
    Application Molecular biology assays (e.g., blue/white screening), lactose hydrolysis in food industry
    Inhibitors Galactose, certain metal ions
    Storage Conditions -20°C for long term (enzyme solutions often stored with stabilizers like glycerol)
    Isoelectric Point pI ≈ 4.6 (E. coli enzyme)
    Gene lacZ (in E. coli)
    Detection Method Colorimetric (e.g., ONPG or X-gal assays)

    As an accredited β-Galactosidase factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing White plastic bottle with blue labeling, screw cap, contains 1g β-Galactosidase lyophilized enzyme, stored refrigerated, tamper-evident seal.
    Storage β-Galactosidase should be stored at -20°C to maintain its stability and activity. The enzyme is typically supplied as a lyophilized powder or aqueous solution, and should be kept tightly sealed, protected from light and moisture. For long-term storage, aliquoting is recommended to avoid repeated freeze-thaw cycles, which can reduce enzyme activity. Always follow manufacturer guidelines for optimal storage conditions.
    Shipping β-Galactosidase is shipped in insulated packaging with ice packs or dry ice to maintain its stability and activity during transit. The shipment is marked as temperature-sensitive and may require expedited delivery. Containers are sealed and labeled according to safety regulations to ensure safe handling and compliance with chemical transport guidelines.
    Free Quote

    Competitive β-Galactosidase prices that fit your budget—flexible terms and customized quotes for every order.

    For samples, pricing, or more information, please call us at +8615651039172 or mail to sales9@alchemist-chem.com.

    We will respond to you as soon as possible.

    Tel: +8615651039172

    Email: sales9@alchemist-chem.com