February 18, 2011

microbes.........


medium
Streptococcus on blood agar
Salmonella on Eosin Methylene Blue
E.coli on Brain Heart Infusion
Salmonella on Brilliant Green Agar
Salmonella on Blood Agar
S.aureus on Nutrient Agar


S.aureus on Mannitol Salt Agar
S.aureus on Chocolate Agar
S.aureus on Blood Agar
E.coli on MacConkey Agar
E.coli on Brain Heart Infusion
E.coli on Eosin Methylene Blue
E.coli on Brilliant Green Agar
E.coli on Blood Agar





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