Yeast Extract Peptone Glucose

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Yeast extract-peptone-glucose medium, abbreviation ( HPG ) better known under the English name plate count agar , is a liquid or solid complex nutrient medium for bacteria. It contains 2.5 g / L yeast extract , 5.0 g / L peptone , 1 g / L glucose in water. The pH is between 7.0 and 7.4. Solidified by adding 15-20g / L agar , it is often used to determine the number of living organisms. It is an unselective complete medium for testing sterility or for determining the number of cells in water, milk and other liquid foods.

See also: nutrient medium

literature

• Eckhard Bast (2014). Microbiological Methods - An introduction to basic work techniques. 3rd edition Springer-Verlag Berlin Heidelberg ISBN 978-3-8274-1813-5
• Atlas, RM (2004). Handbook of Microbiological Media. London: CRC Press. p. 1390. ISBN 0-8493-1818-1