Sabouraud agar
Encyclopedia
Agar
Agar or agar-agar is a gelatinous substance derived from a polysaccharide that accumulates in the cell walls of agarophyte red algae. Throughout history into modern times, agar has been chiefly used as an ingredient in desserts throughout Asia and also as a solid substrate to contain culture medium...
containing peptones. It is used to cultivate dermatophytes and other types of fungi.
It was created by, and is named after, Raymond Sabouraud
Raymond Sabouraud
Raymond Sabouraud was a French physician born in Nantes. He specialized in dermatology and mycology, and was also an accomplished painter and sculptor....
in 1892. Later adjusted by Emmons
Emmons
-People:* Carlos Emmons, American football player* Delos Carleton Emmons, general* Ebenezer Emmons, geologist* George F. Emmons, admiral* George T...
, its pH
PH
In chemistry, pH is a measure of the acidity or basicity of an aqueous solution. Pure water is said to be neutral, with a pH close to 7.0 at . Solutions with a pH less than 7 are said to be acidic and solutions with a pH greater than 7 are basic or alkaline...
level was brought closer to the neutral range to support the growth of other subcultures of fungi.
Typical composition
Sabouraud agar typically contains:- 40 g/L dextrose
- 10 g/L peptone
- 20 g/L agarAgarAgar or agar-agar is a gelatinous substance derived from a polysaccharide that accumulates in the cell walls of agarophyte red algae. Throughout history into modern times, agar has been chiefly used as an ingredient in desserts throughout Asia and also as a solid substrate to contain culture medium...
- pH 5.6