Biochemical Test Part 1 Flashcards
Exp 22A Starch hydrolysis
substrate and producs
starch—–glycoses
Exp 22B- Lipid hydrolysis
substrate and products
tributyrin—-glycerol and fatty acids
Exp 25A Indole production
substrate and products
combined with
triptophan—-indole + pyruvic acid+ammonia
combined with 26
Exp 26 Hydrogen sulfate test
substrate and products
combined with
thiosulfate—–sulfite+hydrogen sulfide gas
combined with 25 A
Exp 25 B methyl red test
substrate and products
combined with
glucose—acid
25 C
Exp 25 C Voges-Prokauer test
substrate and products
combined with
glucose—base
25 B
Exp 25 D Citrate Utilization test
substrate and products
citrate—pyruvic acid+acetic acid+CO2
Exp 27 Urease test
substrate and products
urea—CO2+H20+ammonia
Exp 23 Carbohydrate Fermentation test
substrate and products
carb—Acid (A) or Acid gas (AG)
Exp 28 Litmus milk reaction test
substrate and products
milk—-7 possible results
- Lactose fermentation
- Gas production
- Litmus reduction
- curd formation
- proteolysis
- alkaline reaction
Starch hydrolysis
+ and -
+ remains light
- dark
Lipid Hydrolysis
+ and -
+ media around becomes transparent
- media stays cloudy
Indole production (25 A) combined with 26 \+ and -
+ Red layer on surface of media
- No red layer in media
hydrogen sulfate test (26) combined with 25 A
this is done first!!
+ and -
+ black in media
-no black in media
methyl red test (25 B) combined with 25 C
+ and -
+ any red present in media
- no red
Voges- Prokauer test (25 C) combined with 25 B
+ and -
+ and red in media
- no red in media
Citrate utilization test (25 D)
+ and -
+ any blue in media
-no blue in media
Urea (27)
+ and -
+ pink (metallic)
- peachy