3 min read 
Seliwanoff’s test is a type of chemical test that used to differentiate between ketose and aldose sugars. If the sugar has a ketone group, then it’s ketose. If a sugar has an aldehyde molecule, it is an aldose. This test is based on the idea that in the presence of heat, ketoses become more quickly … Read more
4 min read 
What is Bial’s test? Bial’s Test is a type of chemical test which is used to determine the existence of pentoses. It was named in honor of Manfred Bial, a German doctor. The ingredients are orcinol, hydrochloric acid and ferric chloride. If Pentose is present it will dehydrated to form furfural that is then reacted … Read more
4 min read 
The nitrocefin biochemical test is a sensitive technique for detecting beta-lactamase-producing strains of N. gonorrhoeae, H. influenzae, Staphylococcus spp, Enterococcus spp, and Moraxella (Branhamella) catarrhalis. Nitrocefin is the only reliable test for detecting beta-lactamase-producing Enterococcus spp.
4 min read 
illon’s test can be described as an analytical test for the identification that the amino acid tyrosine which is the sole amino acid with the phenolic group.
4 min read 
agulation of proteins is a test in biochemistry to find whether there are proteins such as albumin and globulin found in proteins. The coagulation of proteins in reaction the heat stimulus is an typical phenomenon. The process of coagulation by heat of proteins happens in two phases; denaturation or Agglutination, or the dissociation of the protein denatured in the form it is in.
10 min read 
Iodine testing is a chemical test that distinguishes mono- or diaccharides from polysaccharides such as amylase, glycogen, and dextrin. Starch-iodine is a variant of this test. It’s used to determine if there is glucose in the leaves.
30 min read 
IMViC is a mnemonic that stands for four tests used in the identification of enteric bacteria: Indole, Methyl Red, Voges-Proskauer, and Citrate. These tests are commonly used in microbiology laboratories to identify bacterial species in the Enterobacteriaceae family, which includes many common pathogens such as Escherichia coli and Salmonella. The principle behind the IMViC tests … Read more
13 min read 
The carbohydrate fermentation test can be used to determine if bacteria are able to ferment a certain carbohydrate.
It is a test to determine any presence of acids or gas resulting from carbohydrate fermentation.
12 min read 
Alkaline Phosphatase (ALP) is an enzyme that is naturally found within all the raw milks that is utilized to determine the quality of pasteurization of milk. A complete pasteurization process can deactivate the enzyme below levels that can be detected by traditional methods. Because the stability of the heat of ALP is higher than the stability of pathogens that could be found in milk, it serves as a metric of security. However, failure for detection of ALP activity is not a mean an item is safe from pathogens.
1 min read 
Biochemical Test of Providencia stuartii Basic Characteristics Properties (Providencia stuartii) Capsule Non-Capsulated Catalase Positive (+ve) Citrate Positive (+ve) Flagella Flagellated Gas from glucose Negative (-ve) Gelatin Hydrolysis Negative (-ve) Gram Staining Negative (-ve) Growth in KCN Positive (+ve) H2S Negative (-ve) Indole Positive (+ve) Motility Positive (+ve) MR (Methyl Red) Positive (+ve) Nitrate Reduction Positive (+ve) … Read more