oxoid CM0361-MRS AGAR MRS琼脂 原装现货
【简单介绍】
【详细说明】
产品名称:MRS AGAR MRS琼脂
货号:oxoid CM0361
规格:500g
说明:
MRS AGAR (DE MAN, ROGOSA, SHARPE)
Code:CM0361
The MRS formulation was developed by de Man, Rogosa and Sharpe1 to replace a variable product (tomato juice) and, at the same time, provide a medium which would support good growth of lactobacilli in general, even those strains which showed poor growth in existing media. MRS medium is superior to the tomato juice medium of Briggs2 and the meat extract tomato juice medium of de Man. It gives more profuse growth of all strains of lactobacilli, especially the difficult and slow growing strains of Lactobacillus brevis and Lactobacillus fermenti.
MRS Agar and Broth were designed to encourage the growth of the `lactic acid bacteria’ which includes species of the following genera: Lactobacillus, Streptococcus, Pediococcus and Leuconostoc. All these species can produce lactic acid in considerable amounts. They are Gram-positive, catalase and oxidase negative and are fastidious in their nutritional requirements. Growth is enhanced considerably by microaerobic conditions. Generally the `lactic acid bacteria’ show delayed growth and smaller colony size than other micro-organisms. They may be overgrown in non-selective media, especially if incubation is required for 2-4 days.
Storage conditions and Shelf life
Store the dehydrated medium at 10-30°C and use before the expiry date on the label.
Store the prepared plates at 2-8°C.
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