Peptone Agar Test Flashcards
1
Q
Peptone Agar Test Purpose
A
To detect if microbe produced Hydrogen sulfide H2S
2
Q
Positive peptone agar test
A
Blackening of medium shows H2S production
3
Q
Why does media become black in positive peptone agar test?
A
The hydrogen sulfide that is produced combines with ferrous ammonia to form black precipitate (sulfide)
