Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the Functionality of Hot Air Oven?
Hot air oven sterilizes the object by hot dry air. It kills the microorganisms by oxidizing cellular constituents. Dry Heat is less effective in killing microorganisms than moist heat. Higher temperature for a longer time period is used with dry air because it-
(i) Has less penetration power, and
(ii) Removes moisture from microorganisms and thus interferes with coagulation of microbial proteins.
Hot air oven can be used at different temperatures. Operating time depends on the temperatures used as highlighted in Table.
Table: Relation between temperature of hot air oven and the time period of sterilization
You would realize that the most commonly used temperature is 160° C for 2 hours. We are all familiar with hot air ovens. Hot air oven contains an insulated cabinet kept at constant temperature by electric heating mechanism and thermostat. Air keeps on circulating within the cabinet through a fan. For proper circulation of hot air, the shelves are perforated. An oven is used to sterilize glassware, corrodeable metal instruments, powder, oil etc. which can tolerate prolonged heat exposure but get spoiled by moist heat. However, it is not suitable for heat sensitive materials, like plastic and rubber items.
What are the fundamental similarities and differences between lamarckism and darwinism? Both darwinism and lamarckism are evolutionary theories as opposed to fixism, both admit
Q What is the difference between catabolism and anabolism? Metabolism comprises two opposing processes: catabolism and anabolism. Anabolism is a set of synthesis reactions that
B o v i ne ephemeral fever Ephemeral fever is commonly known as 'three-day sickness'. It affects mainly cattle and occasionally sheep in India. Causative agent is a mosquit
Body Fluids of Marine Teleost The body fluids of marine teleost are hypotonic to seawater, so these fishes lose water to the environment especially across the gill epithelium.
Chemical and Heat Burn Chemical born and Heat burn injuries have currently started receiving greater attention. The reason for this is perhaps the degree of discomfort and per
Please I need short notes on polyphylrtic theory
Enzymes are proteins that are catalysts of chemical reactions. From Chemistry, it is called that catalysts are non-consumable substances that decrease the activation energy essenti
Q. Into which type of energy is the light used in photosynthesis transformed? The luminous energy used in the photosynthesis is transformed in to the chemical energy.
which organs are involved in respiration of annelid and what is it called ,what by products are formed and how amount of ATP is released?
Define Birth weight - etiological factors for obesity? It has been shown that slow growth of the foetus in utero and during infancy is followed by accelerated weight gain in ch
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd