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Merck
CN

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。

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关于此项目

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

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产品名称

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

Quality Level

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.

相关类别

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。

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。

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。

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

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

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.

存储类别

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

法规信息

动植物来源培养基
此项目有

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCP1773
BCCP0020
BCCP0017
BCCN8759
BCCN3771

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Resident gut bacteria are constantly influencing the immune system, yet the role of the immune system in shaping microbiota composition during an organism's life span has remained unclear. Experiments in mice have been inconclusive due to differences in husbandry schemes
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