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Millipore

LS Differential Agar

suitable for microbiology, NutriSelect® Plus

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Synonym(s):
Lactobacillus Streptococcus Differential Agar
UNSPSC Code:
41171606
NACRES:
NA.85

sterility

non-sterile

Quality Level

form

powder

shelf life

limited shelf life, expiry date on the label

composition

agar, 15 g/L
beef extract, 5 g/L
casein enzymic hydrolysate, 10 g/L
L-cysteine hydrochloride, 0.3 g/L
dextrose, 20 g/L
papaic digest of soybean meal, 5 g/L
sodium chloride, 5 g/L
yeast extract, 5 g/L

manufacturer/tradename

NutriSelect® Plus

technique(s)

microbiological culture: suitable

final pH

6.1±0.2 (25 °C)

application(s)

bioburden testing
environmental
food and beverages

microbiology

suitability

nonselective and differential for Lactobacillus spp.
nonselective and differential for Streptococcus spp.

Related Categories

Application

For the maximum growth and differentiation of Lactobacilli and Streptococci on the basis of colonial morphology, T.T.C. reduction and casein reaction.

Preparation Note

Suspend 65.3 g in 1 litre distilled water. Boil to dissolve the medium completely. Sterilize by autoclaving at 121°C for 15 minutes. Cool to 50°C and add the following sterile solutions previously kept warm at 50°C just prior to use; (1) 100 ml of 10% (w/v) aqueous solution of antibiotic free skim milk powder (Cat. No. No. 70166) sterilized at 121°C for 5 minutes.(2) 10 ml of TTC Solution (Cat. No. 17779). Mix well and pour into sterile petri plates.

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

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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