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Merck
CN

70179

Peptone Water

NutriSelect® Plus, powder, for bacteria, suitable for microbiology

Synonym(s):

Buffered Peptone Water, Peptone water buffered

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About This Item

UNSPSC Code:
41171607
NACRES:
NA.74

Key Documents

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sterility

non-sterile

Quality Level

200

product line

BioChemika

form

powder

shelf life

limited shelf life, expiry date on the label

composition

peptone, 10 g/L
sodium chloride, 5 g/L

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbe id | specific enzyme detection: suitable
microbiological culture: suitable

final pH

7.2±0.2 (25 °C)

application(s)

environmental
food and beverages
sample preparation
water monitoring
microbiology

suitability

Micrococcus spp.
bacteria
nonselective for Bacillus spp.
nonselective for Candida spp.
nonselective for Escherichia coli
nonselective for Pseudomonas spp.
nonselective for Staphylococcus spp.
nonselective for Streptococcus spp.
nonselective for bacteria (General Media)
nonselective for coliforms
nonselective for enterobacteriaceae

General description

Peptone Water is a culture medium used for cultivating non-fastidious organisms, studying carbohydrate fermentation patterns, and performing the indole test. The peptone in Peptone Water is rich in tryptophan, which is essential for indole production. The presence of indole can be detected using either Kovacs or Ehrlich reagent. Additionally, this medium serves as a base for carbohydrate fermentation studies by adding sugars and indicators such as bromocresol purple, phenol red, or bromothymol blue, allowing researchers to analyze fermentation capabilities effectively. Peptone Water contains peptone as a source of carbon, nitrogen, vitamins and minerals. Sodium chloride maintains the osmotic equilibrium of the medium.

Application

Peptone Water is used in microbiology for various applications, including environmental monitoring, food and beverage testing, sample preparation, and water quality analysis. It supports the cultivation and enrichment of microorganisms from environmental samples, pre-enrichment of pathogenic Enterobacteriaceae in food and beverages, and serves as a diluent for sample preparation in microbiological analysis.

Features and Benefits

NutriSelect®Plus ia 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

Add 15 g to 1 litre of distilled water. Mix well and distribute into final containers. Sterilize by autoclaving at 121°C for 15 minutes. If sterile solutions are to be added after autoclaving, reduce the volume of water for reconstitution by an equal amount.

Other Notes

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.

Legal Information

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品
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Certificates of Analysis (COA)

Lot/Batch Number
BCCM6727
BCCL0477
BCCJ1053
BCCC5307
BCBZ8128

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