Refer to Figure 2. April 30, 2019 Acharya Tankeshwar Bacteriology, Biochemical tests in Microbiology, Culture Media used in Microbiology 4 This post was most recently updated on February 1st, 2020Kligler’s Iron Agar (KIA) is used for the detection of carbohydrate fermentation. Deep Freezer Refrigerator Working principle. A vapor compression cycle is used in most freezers. Contact freezing is the one of the most efficient ways of freezing in terms of heat transfer mechanism. Established partner to global researchers and scientists About ATCC Founded in 1925, ATCC is a non-profit ... •Lyophilization (freeze-drying) 8. Oxidase Test- Principle, Uses, Procedure, Types, Result Interpretation, Examples and Limitations Last updated: September 27, 2018 by Sagar Aryal The oxidase test detects the presence of a cytochrome oxidase system that will catalyse the transport of electrons between electron donors in the bacteria and a redox dye- tetramethyl- p -phenylene-diamine. Protocol for Freezing Bacteria Using Glycerol The following protocol provides an alternative to the OPS Diagnostics' Bacterial Freezing Kit.This kit is a ready-to-use product which includes 162 vials (with beads and glycerol), two cryogenic racks and inkjet/ laser labels which are resistant to solvents. In this cycle, a circulating refrigerant enters a compressor as low-pressure vapor at or slightly above the temperature of the freezer interior. All microbiology laboratories preserve micro-organisms on agar slant. ; Pathology, Biochemistry, Hematology, Microbiology Serology, Genetics & Diagnostics. Deep freezers are the testing equipment that are used to preserve and store food products, medical equipment, blood samples, medicines and injections, etc. One of the best things you can do to stop being the go-to IT support guy to all of your colleagues is hooking them up with our reboot to restore software, Deep Freeze Enterprise.. It’s easy to say just how easy Deep Freeze can make your life, but you’re probably asking how exactly it will do that. This testing equipment is used for the various purpose in medical laboratories, to perform biological tests and to preserve the specimens. Most units have both a refrigerator and freezer compartment, but the cooling actually occurs in the freezer, and a fan circulates the cool air into the refrigerator compartment. There are numerous sizes and configurations of laboratory freezers available, including undercounter, freestanding, double-wide, and chest freezer models.An initial consideration in choosing a freezer model is … They are then covered with sterile mineral oil to a depth of 1 cm above the tip of slant surface. In the process of freezing, the product can be in … The most commonly used refrigeration machines are the household refrigerator and deep freezer, though these machines are available in many other forms. (ed); ( 2012). Lyophilization, or storage at -70°C or below are the best methods for long term preservation of bacterial culture and generally storage of isolates at -20°C is not recommended.