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Explain the Voges Proskauer (VP) Test?
As it has been discussed in previous exercise, second group of enteric bacteria produces acid during early incubation which rapidly converted to non-acidic components, i.e., 2, 3 butanediol and acetoin (acetylmethylcarbinol). These components can be detected by using Barritt's reagent, which is a mixture of alcoholic alpha-naphthol and 40% potassium hydroxide solution.
Acetylmethylcarbinol is oxidized to a diacetyl compound in presence of the alpha-naphthol catalyst and a guanidine group present in the peptone of MR-VP medium. This results in formation of a pink complex imparting rose red colouration to a medium after 15 minutes. Development of rose red colour indicates positive VP reaction while absence of it is a negative result.
Define the lens transparency in metabolism of lens. Lens Transparency: a. Transparency depends on avoidance of large transitions of refractory index. This is in other wor
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Explain Nutritional assessment and Guidance in Prenatal Care? In the preceding sections, we have seen that there are unique physiologic changes in the pregnant woman's body, wh
#question about fish
why would it be difficult to determine accurate values for the four variables in the Lotka-Volterra predator-prey model (a, rprey, m, b) for animals in the real world?
Explain about the Shade Drying? Shade drying is carried out for products which can lose their colour and/or turn brown if put in direct sunlight. Products that have naturally v
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