LS 鉴别琼脂

NA.85

用于根据菌落形态、T.T.C. 还原和酪蛋白还原进行鉴别乳酸杆菌和链球菌的最优生长培养基。

Suspend 65.3 g in 1 litre distilled water. Boil to dissolve the medium completely. Sterilize by autoclaving at 121℃ for 15 minutes. Cool to 50℃ and add the following sterile solutions previously kept warm at 50℃ 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℃ for 5 minutes.(2) 10 ml of TTC Solution (Cat. No. 17779). Mix well and pour into sterile petri plates.

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.

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

200

non-sterile

powder

limited shelf life, expiry date on the label

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

NutriSelect^® Plus

microbiological culture: suitable

6.1±0.2 (25 ℃)

bioburden testing
environmental
food and beverages
microbiology

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

11 - Combustible Solids

WGK 3

Eyeshields, Gloves, type N95 (US)