Basic components, functional classification and shelf life of microbial medium

When it comes to microbial mediums, I believe that those who do scientific research partners are no strangersIn fact, microbial media refers to the nutritional matrix that supplies the growth and reproduction of microorganisms, plants or animals (or tissues) and is formulated by a combination of different nutrientsHere's a small compaction to tell you about the basic components, functional classification, shelf lifeofmicrobial mediumthe basic components of the microbiological mediumdivided into synthetic media, natural media and semi-synthetic media according to the composition of the medium1) The various components of synthetic media are completely known to various chemicalsThe chemical composition of this medium is clear, the composition is precise, the repeatability is strong, but the price is more expensive, and the microorganisms grow slower in this mediumSuch as The Gao's No1 synthetic medium, Czapek medium, etc2) Natural media are made from natural substances, such as steamed potatoes, which are used to grow mold and the latter for bacteriaThe chemical composition of this type of medium is very constant and difficult to determine, but the preparation is convenient, rich in nutrition, good culture effect, so it is often used3) semi-synthetic mediaAdd inorganic salts with known ingredients to the natural organic materials appropriately, or add certain natural ingredients, such as potato glucose agar medium for cultivation of mold, on the basis of synthetic mediaThese media can more effectively meet the needs of microorganisms for nutrients2Microbial medium function classification/ type1) from the morphological distinction, solid, semi-solid, fluid, liquid four;2) from the functional division, basic medium, selective medium, color medium, special medium, etc.;3The shelf life of the microbial medium isthe commonly used medium in the microbiological chamber is many, and the validity period of each medium variesThe quality assurance period under the prescribed preservation conditions is as follows:EMB: 4-8 oC seal preservation is valid for January;SS agar: 1 week;test tube media: 4-8 oC seal preservation is 3-4 months;anaerobic plate: 4-8 oC seal preservation is 1-2 weeks;M-H agar,Chocolate agar, Thayer-Martin agar and blood plate, etcvalid for about 4-7 weeks blood media: 1 yearor more is about the basic components of the microbial medium, functional classification, shelf life series of knowledge answers, microbial media in the microbial work has an unusual position, each medium can be cultured according to the different types of microorganisms, different culture purposes, add different ingredients