Culture Types Of Agar Plates

Agar plates are the standard solid support material for growing microorganisms.

Culture types of agar plates. Microbial growth media contains nutrients and an energy source to fuel the microbes as they grow and agar to keep the media in a semi solid gel like state. Blood agar plates baps contain mammalian blood usually sheep or horse typically at a concentration of 5 10. Some colony types recur in various areas of the plate note 3 and 4. In the above picture of a mixed culture an agar plate that has been exposed to the air and many different colony morphologies can be identified.

We have premade or called pre prepared nutrient agar plates made with sterile petri dishes at very affordable. A growth medium or culture medium is a solid liquid or semi solid designed to support the growth of a population of microorganisms or cells via the process of cell proliferation 1 or. The basic process for doing this is to mix up a nutrient rich agar solution pressure sterilize it and then pour the mix onto sterile dishes in a clean environment. Examples include streptococcus haemolyticus.

Specifically it is a streak plate. The orange lines and dots are formed by bacterial colonies. Nine obviously different colonies are numbered. Agar plates come with many different types of media or nutrients depending on the microorganism you want to culture.

Starting with sterilized agar plates. Baps are enriched differential media used to isolate fastidious organisms and detect hemolytic activity. An agar plate an example of a bacterial growth medium. β hemolytic activity will show lysis and complete digestion of red blood cell contents surrounding a colony.

On solid media a single microbe will grow and divide to produce a colony a spot of identical descendants. Store nutrient agar plates in refrigerator. You can buy nutrient agar powder and sterile petri dishes and prepare nutrient agar plates by yourself.