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 pH Meter - Food Microbiology?
pH is a negative logarithm of H+ ion concentration. Its value remains between 0 and 14. Pure water has a pH of 7 (neutral). pH value less than 7 is acidic and more than 7 is basic. The measurement of pH can be done by using pH meter. pH meter is used to measure and set the pH of culture media or reagents used for microbiological and biochemical assays. It is important as different microbes have different pH requirements for growth. Most of the bacteria, in general, have optimum pH for growth between 6.5 to 7.5, though there are certain exceptions.
Some bacteria are acidophiles (grow at acidic pH) or alkalophiles (needs high pH in alkaline range for growth). Most fungi have pH optima around 4 to 6 and yeasts need pH around 3 to 5. The pH meter has a glass electrode for measuring the pH. During determination of pH, first the instrument is calibrated with standard buffers of pH 4, 7 and 9. Then the pH of the sample solution is determined by dipping the glass electrode in the solution and pH is read directly from the pH meter scale.
Q. Etiological factor of lactose intolerance? These diseases are referred to as idiopathic (cause unknown) and though the possible mechanism suggested includes genetic factors,
Abrasive action of water, ice and wind Water is an important mechanical weathering agent both in liquid as well as in the frozen state. Rain water carrying sediments, ice glac
What is the neurotransmitter of the neuromuscular junction? How does the nervous system trigger muscle contraction? The nervous cells that trigger the muscle contraction are th
Explain National Programmes Targeting Infants and Preschoolers? Infants and preschoolers are the vulnerable sections of the society. To give them due coverage, some national p
Metabolic Disorders The disease conditions, which are attributable to an imbalance between rates of input of dietary nutrients and the output of production, are defined as pro
Q. What are the typical components of a closed circulatory system? The typical components of the closed circulatory system are the blood vessels within which blood circulates c
1. Describe how the hypothalamus regulates the secretion of anterior pituitary hormones and identify all of the individual hypothalamic regulatory factors. Describe how the hypotha
Tick-Borne Encephalitis (TBE ) TBE occurs in Scandinavia, Western and Central Europe and countries of the former USSR, mainly in rural forested areas. Risk is greatest from Apri
Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4
Illustrate metabolic processes of vitamin B In the human and animal metabolism, they form a functional unit, since, as components of the various coenzymes, they are essential
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