Biology Practicals

Of all the options to sterilize (killing or eliminating all microorganisms, which includes the spores of bacterial growth) moist heat that is saturated steam with pressure has been the most frequently utilized and most reliable method. Moisture has more penetrating power than dry heat, and at a certain temperature, causes a greater reduction in the quantity of live microorganisms. Steam sterilization is safe cheap, low-cost, quickly microbicidal, as well as sporicidal. It quickly heats and penetrates into fabrics.

Because the aim of biologists is to cultivate microorganisms or eukaryotic cells with no introduction of any extraneous organisms aseptic methods are essential for ensuring that experiments are conducted with precision and accuracy. Always keep in mind that a totally safe working environment for scientists does not exist.

Spread Plate Method in microbiology The spread plate method is used to isolate individual colonies from a diluted sample of mix population. Different methods have been developed for the isolation of microorganisms from a mixture sample but among them Spread plate culture method is the most widely used technique in laboratory. An ideal spread plate

The pour Plate Method technique was created in the laboratory by Robert Koch and is still widely used in the laboratory since his time. This technique is appropriate for Microaerophilic, facultative, or anaerobic microorganisms. It is straightforward to use, requires fewer resources, and is simple and cost-effective. However, it requires the specimen to be placed

Overview of Subculturing Technique In microbiology, subculture is defined as a new cell or microbiological culture, which is prepared by transferring a few or all cells to a fresh growth medium from an old culture or a previous culture. In a single word, the transfer of cells from a previous culture to a fresh or

Aim Transfer of microbial cells from a parent culture medium to a fresh broth culture. Principle The broth is a liquid medium, which is used to grown microorganisms within the laboratory on a small scale. It also used in an industrial fermentor on a large scale. The media called broths, milks, or nutrient solutions are

Streak Plate Method Overview There are two types of microbial culture such as mixed culture and pure culture. The mixed culture contains two or more species while the pure culture contains only a single species.  During the identification of a microorganism, the first and important step is to isolate the individual species from a mixed