Moeller 脱羧酶肉汤基础

Decarboxylase broth base, Moeller is a dehydrated culture medium designedfor the differentiation of Gram-negative enteric bacteria based on theirability to decarboxylate specific amino acids. The medium follows the Moellerformulation, which contains peptone, beef extract, glucose, pyridoxal (as acofactor), and bromocresol purple as a pH indicator, but no amino acids bydefault; appropriate L‑amino acids (L‑arginine, L‑lysine, or L‑ornithine) are added separately depending on the test required. Wheninoculated and overlaid with mineral oil to ensure anaerobic conditions,decarboxylase-positive organisms produce alkaline amines that raise the pH andshift the indicator from yellow (acidic) back to purple (alkaline), allowingdistinction between decarboxylase-positive and -negative strains.

用于根据其对氨基酸脱羧基作用的能力来鉴定细菌.

Features:

• High-Quality Standards: NutriSelect^® Plus powdered culture media are made from carefully selected raw materials, ensuring consistent quality.
• Wide Range of Applications: Suitable for various microbiological needs, including academic research, food and beverage testing, and pharmaceutical applications.
• Regulatory Compliance: Products meet industry standards and are compliant with ISO 9001 quality assurance.
• Innovative Formulations: Includes novel media types such as non-animal-derived alternatives, synthetically defined media, and chromogenic media.

Benefits:

• Convenience and Safety: Easy-to-use powdered format with minimal clumping and excellent solubility, even in warm or humid conditions.
• Sustainability: Reduced risks associated with fine dust and toxic substance inhalation, ensuring a safer work environment.
• Extended Shelf Life: Products have a prolonged shelf life of up to five years.
• High Reproducibility: Ensures consistent results across batches, exceeding regulatory demands.
• Comprehensive Portfolio: A vast selection of over 350 products tailored to meet diverse microbiological testing needs.

Suspend 10.52 g of Decarboxylase Broth Base in 1000 ml of distilled water. Add 10 g of either L-Arginine (Cat. No. 11010), or L-Lysine (Cat. No. 62840), or L-Ornithine (Cat. No. 75470). Heat to dissolve the medium completely. When L-ornithine is added, readjust the pH. Dispense in 5 ml quantities in screwcapped tubes. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 10 minutes.

成分 (g/L)
动物组织消化物，5.00
牛肉提取物，5.00
右旋糖，0.50
溴甲酚紫，0.01
甲酚红，0.005
吡哆醛，0.005

We offer two media types: the superior granulated GranuCult^® and the cost-efficient powdered NutriSelect^® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany