this picture took by me during my food microobiology lab..at first i'm very afraid to streak the plate...huhuhuhu....every time i streak,the loop will spoil my agar plate(actually my unskill hand)..wakakakaa........but,when i practiced,it being well..so,i'm very enjoy streak the plate...yay3!
RESULTS OF THIS EXPERIMENT...
No | Medium | Bacteria | Bacteria growth (-ve, +ve, colour) | Appearance of colony (shape) | Appearance of medium (change in colour) |
1 | Brilliant Green Agar | E.coli |
+ve, white colonies | Round with raised margin | Orange to yellow |
S.aureus | Round | Orange to yellow | |||
Salmonella | Round with raised margin | Orange to pink | |||
Streptococcus | Round | Orange to yellow | |||
2 | MacConkey Agar | E.coli | +ve, pink colonies | L-form | Light red to purplish |
S.aureus | -ve |
|
| ||
Salmonella | +ve, white colonies | Round with raised margin | Light red to yellow | ||
Streptococcus | -ve |
|
| ||
3 | 7.5% Sodium Chloride Agar | E.coli | -ve |
|
|
S.aureus | +ve, white colonies | Round | Clear to clear | ||
Salmonella | -ve |
|
| ||
Streptococcus | |||||
4 | Eosin Methylene Blue Agar | E.coli | Shinning metallic green | Round with raised margin | Light pink to purple |
S.aureus | -ve |
|
| ||
Salmonella | +ve, white colonies | Round | Light pink to purple | ||
Streptococcus | -ve, |
|
| ||
5 | Mannitol Salt Agar | E.coli | -ve |
|
|
S.aureus | +ve, yellowish colonies | Round |
Light red to yellow | ||
Salmonella | +ve, yellow colonies | Round | |||
Streptococcus | Irregular | ||||
6 | Blood Agar | E.coli | +ve, white colonies |
Round with raised margin |
Dark red to red |
S.aureus | |||||
Salmonella | +ve, grey colonies | ||||
Streptococcus | +ve, white colonies | ||||
7 | Chocolate Agar | E.coli | +ve, cream colonies |
Round with raised margin |
Cocoa to cocoa |
S.aureus | +ve, white colonies | ||||
Salmonella | +ve, cream colonies | ||||
Streptococcus | +ve, clear colonies | ||||
8 | Brain Heart Infusion Agar | E.coli |
+ve, cream colonies
| Round with raised margin |
Clear to clear
|
S.aureus | Round | ||||
Salmonella | Round with raised margin | ||||
Streptococcus | Round | ||||
9 | Nutrient Agar | E.coli |
+ve, white colonies | Round with raised margin |
Clear to clear |
S.aureus | Round | ||||
Salmonella | Round with raised margin | ||||
Streptococcus | Round | ||||
10 | DRBC Agar | E.coli |
-ve |
|
|
S.aureus | |||||
Salmonella | |||||
Streptococcus |
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