Methylene Blue Reduction Test (MBRT) is the test used for checking the microbiological quality of milk. It is the process where a redox dye called methylene blue is added to milk, and the time taken for disappearance of the blue colour is recorded. It is based on the activity of microorganisms present in the milk. … Read more
Native PAGE is the method where proteins are separated in their original folded condition without any use of denaturing reagents. It is the process in which the movement of proteins in a polyacrylamide gel is controlled by the natural charge, size and the native conformation of the molecules. The proteins migrate through the gel matrix … Read more
A bioreactor is the vessel in which biological reactions is carried out in controlled conditions. It is the process where microorganisms, plant cells or animal cells are allowed to grow and produce useful products. It is designed as a closed container in which temperature, pH, dissolved oxygen (DO) and nutrient level is maintained with the … Read more
What is Microtome? A microtome is a laboratory device that is used for cutting very thin sections of different materials for microscopic examination. It is the instrument by which uniform slices are produced, and it is the process that helps the light or the electron to pass through the specimen so that the internal structures … Read more
Latex agglutination test is a simple serological test where antigen and antibody reaction is made visible on the surface of latex particles. It is the process in which latex beads are coated either with antigen or with antibody and when a sample containing the corresponding component is added, the beads is clumped together forming visible … Read more
A spectrophotometer cuvette is a small optical cell that is used to hold the liquid sample during absorbance or transmittance measurement. It is usually made in a rectangular shape and two opposite sides are kept clear and highly polished so that the light beam can pass through the solution without scattering. It is the process … Read more
In Mounting technique, the specimen to be observed is held on a microscopic slide by using a coverslip.
A pH meter is an instrument that is used to measure the pH of a solution, and it is the value that shows how acidic or alkaline the solution is. It is the process where a glass electrode and a reference electrode are placed in the sample, and the potential difference formed between them is … Read more
Nylander’s test is a qualitative test that is used for detecting reducing sugars. It is the process where the reducing sugar is heated with an alkaline solution containing bismuth salt, and the reaction is controlled by the components present in the reagent. The reagent is made of bismuth nitrate or bismuth subnitrate, potassium sodium tartrate, … Read more
The Picric Acid Test is used to detect the presence of reducing sugars in a solution. It is a general chemical test and it is based on the reduction of picric acid under alkaline condition. Picric acid is a yellow crystalline compound (2,4,6-trinitrophenol) and it is converted into picramic acid when it reacts with a … Read more
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