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Growth Media on ZAGENO

Agarose, 3:1 Super Sieve IBI Scientific
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Nitrofurantoin Broth Base SKU: M857 HiMedia Laboratories
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Pantothenate Culture Agar SKU: M135 HiMedia Laboratories
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Pantothenate Inoculum Broth SKU: M542 HiMedia Laboratories
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Phenol Red Rhamnose Broth SKU: M1183 HiMedia Laboratories
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Phenol Red Starch Broth SKU: M1016 HiMedia Laboratories
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Phenol Red Tartrate HiVeg™ Agar SKU: MV872 HiMedia Laboratories
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Phenylethyl Alcohol Agar SKU: M269 HiMedia Laboratories
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Phenylethyl Alcohol HiVeg™ Agar Base SKU: MV269 HiMedia Laboratories
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Pseudomonas Agar Medium for Detection of Fluorescein SKU: MU120 HiMedia Laboratories
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Rappaport Vassiliadis Salmonella Enrichment Broth SKU: MU1491 HiMedia Laboratories
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Rogosa SL Agar w/ 0.15% Oxgall SKU: M958 HiMedia Laboratories
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Growth Media Function and Application

Growth media is a substance which supports cellular growth. Given the array of microorganisms, so too are the types of growth media to match the life support parameters microorganisms may require. Typical growth media are liquid nutrient mediums (like lysogeny broth) and nutrient broths with the addition of agar. Once the broth is cooled, the agar allows for the nutrient broth to solidify (usually in Petri dishes), to allow for a nutrient-rich surface for cellular colonies to grow.

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Growth Media Types

There are two types of growth media: defined and undefined. As the name suggests, a defined medium has a set quantity of known ingredients. This arises from extensive study of all the required elements, vitamins, and other molecules needed to grow a cellular organism. Undefined medium has added complexity in that some ingredients contain an unknown proportion of chemical mixtures. An example of this that is common in the lab is a yeast extract or casein hydrolysate. It is challenging to quantify all the required nutrients for cellular organisms. That is why some microorganism have never been grown on defined media.

Media Classifications:

  • Culture Media: Contains all the nutrients required for bacteria, and are usually not selective. They usually have glucose as a carbon source, water, various salts, amino acids, and nitrogen.
  • Minimal Media: Contains the minimum amount of nutrients possible for colony growth. This is usually used to determine recombinant or exconjugates, and to grow wild-type versions of the target organism.
  • Selective Media: A common method used in cell culturing, this media contains antibiotics in order to grow selected cells. A typical example of this is with ampicillin. Those bacteria which contain resistance to ampicillin then would be allowed to grow on the media.
  • Differential Media: Contains chemical mixtures to distinguish various cells. This is used to determine the presence of microorganisms visually.
  • Transport Media: only used to store and transfer target specimens temporarily.