69964

MRS 琼脂

NutriSelect^® Basic, powder, nonselective for Lactobacillus Spp., pack of 500 g

• 别名: 按照 DeMan、Rogosa 和 Sharpe 方法的乳酸菌琼脂。
• NACRES: NA.74
• UNSPSC Code: 41171605
• Manufacturer/tradename: NutriSelect^® Basic
• Form: powder
• Suitability: nonselective for Lactobacillus Spp., selective by low pH for Bifidobacterium spp.
• Application(s): agriculture; bioburden testing; environmental; food and beverages; microbiology

属性

• Quality Segment: 100
• sterility: non-sterile
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: agar, 12 g/L , dipotassium hydrogen phosphate, 2 g/L , D(+)-glucose, 20 g/L , magnesium sulfate (equivalent to 0.2 g/lheptahydrate), 0.1 g/L , manganous sulfate monhydrate, 0.05 g/L , meat extract, 5 g/L , sodium acetate, 5 g/L , triammonium citrate, 2 g/L , universal peptone, 10 g/L , yeast extract, 5 g/L
• packaging: pack of 500 g
• manufacturer/tradename: NutriSelect^® Basic
• technique(s): microbiological culture: suitable
• final pH: 6.5±0.2 (25 °C)
• application(s): agriculture; bioburden testing; environmental; food and beverages; microbiology
• suitability: nonselective for Lactobacillus Spp., selective by low pH for Bifidobacterium spp.

说明

General description

MRS Agar, also known as DeMan-Rogosa-Sharpe Agar, is a microbiological medium specifically designed for the enrichment, cultivation, and isolation of Lactobacillus species from various materials. It is a non-selective medium with a low pH that favors the growth of Lactobacillus spp. and Bifidobacterium spp. The medium contains essential nutrients such as glucose, meat extract, yeast extract, and peptones, which provide nitrogenous and carbonaceous compounds, amino acids, and vitamins necessary for microbial growth. Sodium acetate and ammonium citrate enhance selectivity by inhibiting the growth of unwanted organisms. The media contains polysorbate (Tween 80), acetate, magnesium, and manganese, which are known to act as specific growth factors for Lactobacilli, and provide a rich nutrient base.

Application

用于从所有类型的材料中富集、培养、分离所有种类的乳杆菌。

Features and Benefits

NutriSelect^® Basic is a powdered culture media offering

• Quality control with growth promotion test according to industry standards
• Quality assurance acc. to ISO 9001
• Cost-efficient powdered media

Preparation Note

取61.15g混悬于含有1 ml聚山梨醇80(TWEEN^® 80; Sigma P8074)的1000 ml蒸馏水中。 煮沸以完全溶解培养基并充分混匀。15 lbs压力(121°C)高压蒸汽灭菌15分钟。如有需要，灭菌后用冰醋酸调节pH。

Other Notes

我们现提供两种类型的培养基：GranuCult^®优质颗粒状培养基和NutriSelect^®高性价比粉末状培养基，满足用户不同层次的需求。
商标后的品级称号basic（基础）、plus（加强）或prime（特级）代表产品的不同质控水平，从基础的质控到标准质控加强版到全面合规的特级质控水平。

Legal Information

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

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

TWEEN is a registered trademark of Croda International PLC

Disclaimer

This product will be discontinued in the near future; however, stock is still available. The recommended replacement product is 1.10660 - MRS agar (de MAN, ROGOSA and SHARPE)

安全信息

• 存储类别: 11 - Combustible Solids
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)