Acetamide utilization test

Acetamide Utilization Test


 Acetamide (ethanamide) is the most straightforward amide gotten from
acidic corrosive. The equation of this natural compound is CH3CONH2.



 Acetamide utilization test is suggested for separating Pseudomonas
aeruginosa from other non-glucose-maturing, gram-negative poles. It
separates microorganisms in view of using acetamide as the sole carbon
source.



Acetamide utilization test




Principle
 Acetamide stock/agar contains acetamide (CH3CONH2) as the sole
carbon source and inorganic ammonium salts as the sole nitrogen source.

,  Microbes fit for development on this medium produce the catalyst
acylamidase which deaminates acetamide to deliver smelling salts. The
development of smelling salts results in alkalinity.

 This change in pH turns the bromthymol blue marker in the medium from
green to blue, making the medium change tone from green to illustrious
blue.



 Hence, the development and resulting change in the blue shade of the
medium shows a positive test for acetamide utilization. Osmosis of
acetamide will bring about a yellow tone and ought not be confused with
a positive outcome.



Materials and Methods

 Sterile immunizing circles or sticks
 Hatchery
 Acetamide Agar: The arrangement of acetamide agar is organized
underneath.

Amount
Ingredients
(gram/liter)

Sodium chloride 5.0 g

Magenesium sulfate 0.2 g

Ammonium phosphate (NH4H2PO4),
1.0 g
monobasic

Potassium phosphate (K2HPO4), dibasic 1.0 g