Merck
All Photos(1)

63016

Millipore

M-17 Agar

suitable for microbiology, NutriSelect® Basic

NACRES:
NA.74

sterility

non-sterile

Quality Level

form

powder

shelf life

limited shelf life, expiry date on the label

composition

agar, 12.75 g/L
ascorbic acid, 0.5 g/L
casein peptone (tryptic), 2.5 g/L
disodium β-glycerophosphate pentahydrate, 19 g/L
magnesium sulfate hydrate, 0.25 g/L
meat extract, 5 g/L
meat peptone (peptic), 2.5 g/L
soyapeptone (papainic), 5 g/L
yeast extract, 2.5 g/L

manufacturer/tradename

NutriSelect® Basic

technique(s)

microbiological culture: suitable

final pH

7.1±0.2 (25 °C)

application(s)

agriculture
environmental
food and beverages

microbiology

suitability

nonselective for Lactococcus spp.
nonselective for Streptococcus spp.

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M-17 Agar suitable for microbiology, NutriSelect® Basic

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sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

sterility

non-sterile

form

powder

form

powder

form

powder

form

powder

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

shelf life

limited shelf life, expiry date on the label

composition

agar, 12.75 g/L , ascorbic acid, 0.5 g/L , casein peptone (tryptic), 2.5 g/L , disodium β-glycerophosphate pentahydrate, 19 g/L , magnesium sulfate hydrate, 0.25 g/L , meat extract, 5 g/L , meat peptone (peptic), 2.5 g/L , soyapeptone (papainic), 5 g/L , yeast extract, 2.5 g/L

composition

agar-agar, 15 g/L , bile salts, 1.5 g/L , lactose, 12 g/L , methyl blue, 0.1 g/L , proteose peptone, 5 g/L , sodium chloride, 5 g/L , tryptose, 10 g/L , yeast extract, 3 g/L

composition

agar, 15.0 g/L , brilliant green, 0.0003 g/L , ferric citrate, 1.0 g/L , lactose, 10.0 g/L , meat extract, 5.0 g/L , neutral red, 0.025 g/L , ox bile, dehydrated, 8.5 g/L , peptone, 5.0 g/L , sodium citrate, 10.0 g/L , sodium thiosulfate, 8.5 g/L

composition

-

manufacturer/tradename

NutriSelect® Basic

manufacturer/tradename

NutriSelect® Plus

manufacturer/tradename

NutriSelect® Plus

manufacturer/tradename

NutriSelect® Basic

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

technique(s)

microbiological culture: suitable

Application

M-17 Agar media is proposed for the cultivation, detection and enumeration of Iactic streptococci in milk and dairy products. The M-17 media are superior to other comparable culture media for the cultivation of the fastidious species Streptococcus cremoris, Streptococcus diacetilactis and Streptococcus Iactis. It is also suitable for cultivation and maintenance of starter cultures for cheese and yogurt manufacturing. This medium helps in detecting streptococcal mutants which are lactose non-fermenters. M-17 Agar media may also be used for the differentiation of bacteriophages infecting lactic streptococci.

Preparation Note

Dissolve 50 g in 950 ml distilled water and sterilize by autoclaving at 121°C for 15 minutes. After cooling add 50 ml aseptic 10% lactose solution.

Footnote

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

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2

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

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