Some bacteria require specific nutrients to grow - if you have media lacking those nutrients, the bacteria won't grow and that helps you identify the species.
Also, some bacteria produce characteristic patterns in the media, which can help identify the bacterial species. For instance, some types of Staphylococcus bacteria completely break down red blood cells (alpha hemolysis) and other types partially break down red blood cells (beta hemolysis).
differential media contains indicators that visually distinguish between organisms eg; mannitol and phenol red indicator the principle in this media is that the mannitol is fermented to produce an acid which changes the colour of the agar to yellow.
what do you mean? I would say yes. The main types of culture media are Enriched media Differential media Selective media Characterisation media.
something such as agar were bacteria grows
Bacterial cultures.
suppurative otitis media
Blood agar is a bacterial growth medium which contains 5% sheep's blood. It is considered to be differential but not selective, because it is an enriched medium that provides a rich nutrient environment for many types of bacteria, while a selective medium supports the growth of certain types of bacteria but inhibits other types. Blood agar is considered differential because it is used to distinguish pathogenic bacteria based on the effect of bacterial enzymes known as hemolysins which lyse red blood cells. Blood agar is mainly used clinically to detect the presence of Streptococcus pyogenes, the human pathogen which causes "strep throat". Blood agar can be made selective by the addition of other ingredients.
what do you mean? I would say yes. The main types of culture media are Enriched media Differential media Selective media Characterisation media.
differential.
There are various types of microbiological media used for culturing microorganisms, such as agar plates for solid media, broth for liquid media, selective media to encourage growth of specific organisms, differential media to distinguish different types of organisms based on their growth characteristics, and enrichment media to help grow fastidious microbes.
Differential media or selective media is an agar that has certain nutrient to grow certain microbes. Simple media is an agar that has simple sugars that many normal microbes thrive in.
The growth media such as nutrient agar or Mckonkey agar is used to isolate microbial cells from the mix culture when inoculate on them. Some time speical media is used which selectivly grow some time of bacteria or a differential media which give different morphology of different bacterial species e.g. blood agar and Mannitol salt agar. It can be done by three ways: the spread plate method, the streak plate method, and the pour plate method.
Selective media favor the growth of particular microorganisms. Bile salt or dye like basic fuschin and crystal violet favor the growth of gram-negative bacteria by inhibiting the growth of gram positive bacteria. Maconkey agar is widely used to grow E.coli and related bacteria. Differential media are media that distinguish among different groups of microbes and even permit tentative identification of microorganisms based on their biological characterstics. Blood agar is used to culture of bacteria from human throat. Mckoney agar is both differential and selective media.
media used for oxidase test is non selective media
its a selective media
something such as agar were bacteria grows
Bacterial cultures.
suppurative otitis media
Blood agar is a bacterial growth medium which contains 5% sheep's blood. It is considered to be differential but not selective, because it is an enriched medium that provides a rich nutrient environment for many types of bacteria, while a selective medium supports the growth of certain types of bacteria but inhibits other types. Blood agar is considered differential because it is used to distinguish pathogenic bacteria based on the effect of bacterial enzymes known as hemolysins which lyse red blood cells. Blood agar is mainly used clinically to detect the presence of Streptococcus pyogenes, the human pathogen which causes "strep throat". Blood agar can be made selective by the addition of other ingredients.