产品说明
应用
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.
制备说明
Dissolve 50 g in 950 ml distilled water and sterilize by autoclaving at 121℃ for 15 minutes. After cooling add 50 ml aseptic 10% lactose solution.
附注
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.
法律信息
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
基本信息
| NACRES | NA.74 |
产品性质
| 质量水平 | 100 |
| 无菌性 | non-sterile |
| 形式 | powder |
| 保质期 | limited shelf life, expiry date on the label |
| 组成 | 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 |
| 最终pH | 7.1±0.2 (25 ℃) |
| application(s) | agriculture environmental food and beverages microbiology |
| 适用性 | nonselective for Lactococcus spp. nonselective for Streptococcus spp. |
安全信息
| 储存分类代码 | 11 - Combustible Solids |
| WGK | WGK 3 |
| 闪点(F) | Not applicable |
| 闪点(C) | Not applicable |
| 个人防护装备 | Eyeshields, Gloves, type N95 (US) |
Sigma-Aldrich
m.cnreagent.com
