I dont have any answer, But i will post it when i will know . No change in color or reaction on Indole Test - Negative result on Indole Test.
After your ovulation takes place, you'll need to wait at least 10 days to take a pregnancy test and, hopefully, get positive results. Good luck!
The substances that are test positive with Ames test may or may not be carcinogenic for humans. Similarly, some substances that cause cancer in laboratory animals do not give a positive result Ames test. It is not possible to decide the carcinogenicity of any substances only depending on the Ames test.
If it is mixed well.
Starch digestion (hydrolysis) is incomplete
Yes, Morganella morganii is positive for citrate utilization. This bacterium can use citrate as a carbon source for growth and will produce alkaline byproducts, causing a color change in the citrate test medium from green to blue.
alpha-glucosidase test: using 5-bromo-4-chloro-3-indolyl-alpha-D-glucopyranoside (included in chromogenic media), but not using alpha-methyl-glucoside fermentation. Cronobacter (E. sakazakii) are positive for this test and E. aerogenes are negative.
Morganella morganii can be confirmed through various laboratory tests, including biochemical tests to identify specific enzymes produced by the bacteria, such as the ability to ferment different sugars or produce specific metabolic byproducts. Additionally, molecular methods like polymerase chain reaction (PCR) can be used to detect genetic markers unique to Morganella morganii. It is important to consult a microbiologist or use specialized diagnostic tools for accurate identification.
The indole positive test is used to test the absence or presence of the vibro cholera.
Indole test,Proteus vulgaris is be indole positive and Citrobacter freundii will be indole negative
No, Staphylococcus epidermidis is usually indole negative, meaning it does not produce indole as a byproduct of tryptophan metabolism. This can help differentiate it from other bacteria that are indole positive.
The indole test is based on the ability of certain bacteria to produce the enzyme tryptophanase, which converts tryptophan into indole. This indole is then detected by adding a reagent such as Kovac's reagent, which reacts with indole to produce a red color. A positive test indicates the presence of tryptophanase enzyme in the bacteria.
Staphylococcus aureus is negative for motility, and positive for the indole production. The SIM test tests for sulfur reduction, indole production and motility. Positive for indole production means tryptophan is broken down into indole and pyruvate and will give a red color. Motility, you will see the bacteria move outside of the stab. Positive for sulfur reduction will give a black color in the medium.
Biochemical tests such as indole test and citrate utilization can help differentiate between Klebsiella pneumoniae and Citrobacter freundii. Klebsiella pneumoniae is indole negative and citrate positive, while Citrobacter freundii is indole positive and citrate negative. Additional tests like urease and motility can also aid in differentiation.
Sulfur Indole Motility test
Amino acids that contain an indole group, such as tryptophan, give a positive Ehrlich test. The Ehrlich test is a colorimetric test that detects compounds containing indole or phenolic groups by producing a pink or red color when reacted with p-dimethylaminobenzaldehyde reagent.
Staphylococcus epidermidis indole test - negative methyl red - negative voges proskauer test - positive citrate test - no idea