Pseudomonas HiVeg™ Agar (For Pyocyanin)

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SKU:
MV119
For detection of pyocyanin production by Pseudomonas species.


Product Profile

Vegetable based (Code MV) Animal based (Code M)
MV119 M119
HiVeg special peptone Peptone special

Reconstitution

46.4 g/l

Quantity on preparation (500g) 10.77 L
(100g) 2.15 L

pH (25°C)

7.0 ± 0.2

Supplement

Glycerol

Sterilization

121°C / 15 minutes.

Storage

Dry Medium - Below 30°C, Prepared Medium 2 - 8°C.

Composition

Ingredients Grams/Litre
HiVeg special peptone 20.00
Potassium sulphate 10.00
Magnesium chloride 1.40
Agar 15.00

Final pH (at 25°C) 7.0 ± 0.2

** Formula adjusted, standardized to suit performance parameters

Directions

Suspend 46.4 grams in 1000 ml distilled water containing 10 ml glycerol. Boil to dissolve the medium completely. Sterilize by autoclaving at 15 lbs pressure (121°C) for 15 minutes.

Principle and Interpretation

Pseudomonas HiVeg Agar is prepared by using HiVeg special peptone, which is free from BSE/TSE risks associated with animal based peptones. It is the modification of Pseudomonas Agar which is based on the formulation described by King et al (1) for detecting pyocyanin, a water soluble pigment by Pseudomonas species (2). This medium enhances the elaboration of pyocyanin but inhibits the formation of fluorescein pigment. The pyocyanin pigment diffuses from the colonies of Pseudomonas into the agar and shows blue colouration. Some Pseudomonas strains produce small amounts of fluorescein resulting in a blue-green colouration. HiVeg special peptone provides nitrogenous growth nutrients, carbon, sulphur and trace elements for Pseudomonas species. Potassium sulphate and magnesium chloride enhances the pyocyanin production and suppresses the fluorescein production. Glycerol acts as a source of energy and enhances pigment production.

Quality Control

Appearance of powder Light yellow coloured, may have slightly greenish tinge, homogeneous, free flowing powder.

Gelling Firm, comparable with 1.5% Agar gel.

Colour and Clarity Yellow coloured, clear to slightly opalescent gel forms in petri plates.

Reaction Reaction of 4.64% w/v aqueous solution (containing 1% v/v glycerol) is pH 7.0 ± 0.2 at 25°C.

Cultural Response

Cultural characteristics observed after an incubation at 35 - 37°C for 18 - 24 hours.

Organisms (ATCC) Inoculum Growth Colour of Medium
Pseudomonas aeruginosa (27853) 30-300 luxuriant blue-green

References

  1. King, Ward and Raney, 1954, J. Lab. Clin. Med., 44: 301.
  2. MacFaddin J., 1985, Media for Isolation-Cultivation-Identification- Maintenance of Medical Bacteria, Volume I, Williams and Wilkins, Baltimore.
More Information
Product Name Pseudomonas HiVeg™ Agar (For Pyocyanin)
SKU MV119
Product Type HiVeg™
Physical Form Powder
Origin Animal Free (Veg)
Packaging type HDPE
References 1.King, Ward and Raney, 1954, J.Lab. and Clin. Med., 44:3012.The United States Pharmacopoeia, 2008, The United States Pharmacopoeial Convention, Rockville, MD.
3.MacFaddin J., 1985, Media for Isolation-Cultivation-Identification-Maintenance of Medical Bacteria, Vol. I, Williams andWilkins, Baltimore.
Customized Product Available No
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