General Purpose Media

General Purpose media is designed to grow most organisms and do not contain growth inhibitors. Standard Methods Agar and Blood Agar Bases are examples of general purpose media.

Receive all our future posts instantly in your inbox. Enter your email to enroll.

Basal media are basically simple media that supports most non-fastidious bacteria. Peptone-water, nutrient broth, and nutrient agar (NA) are considered as basal medium. These media are generally used for the primary isolation of microorganisms.

General purpose media for growing fastidious pathogenic Gram negative (FGN) bacteria are limited to non-selective blood and chocolate agar. These suffer from excessive contamination with fungi, Gram positive, and Gram negative bacteria, especially Pseudomonas spp. MacConkey agar can be modified to grow Haemophilus, Helicobacter, Campylobacter and other FGN without the use of antibiotics. BNO100 and BNO70 media were based on MacConkey medium. BNO1-4 were Blood Agar Base containing crystal violet and no bile salts. All media were made as chocolate agar with 8% defibrinated sheep blood, yeast extract 0.5%, glycerol 0.5% (v/v), vitamins, and agar.

Types of Culture Media :

There are some types of important culture or growth media used in microbiological laboratories:

• The Preservation Culture Media
• The Enrichment Culture Media
• Selective Culture Media
• Differential Culture Media
• Resuscitation Culture Media
• General Purpose Media

Related Articles:

• Gram Positive Bacteria
  Gram-positive bacteria are the genus of bacteria family and a member of the phylum Firmicutes. […]
• Urine Culture Interpretation
  Urine culture results should be interpreted in conjunction with clinical symptoms of urinary tract infection […]
• Urine Culture Procedure
  A urine culture is a test that can detect bacteria in your urine. This test […]
• Antibiotic Sensitivity Discs
  The discs-diffusion test is based on the fact that for a given antibiotic, the size […]
• General Purpose Media
  General Purpose media is designed to grow most organisms and do not contain growth inhibitors. […]
• Resuscitation Culture Media
  This is a special type of medium that is used to grow microorganisms that are […]
• Urine Protein to Creatinine Ratio
  To screen for excess protein in the urine, to help evaluate and monitor kidney function, […]
• Microalbuminuria Test
  The microalbuminuria test is a urine test that measures the amount of albumin in your […]