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Explain Environmental Sampling - Methods and Techniques?
Environmental sampling can be done for total microbial load or for some specific pathogens or spoilage organisms. The medium used is chosen accordingly. Different media like Brain Heart Infusion (BHI) broth, Plate-count agar with or without antibiotics, Pseudomonas isolation agar etc. can be employed, depending upon the purpose. Criteria for acceptable microbiological results from food contact surfaces depend on the food being processed in the facility. On the basis of nature of the site, degree of contamination and microbiological information sought, different sampling techniques can be employed for processing surfaces and air sampling.
(a) Why are herbivores considered similar to predators in the ecological context Describe? (b) Differentiate among the following interspecific interactions in a population :
Diabetes Mellitus in the World As per the International Diabetes Federation Directory, in 1994 the global burden of the disease was estimated at 110 million. These cases will i
Vapour Pressure The intermolecular forces in a liquid prevent most molecules from escaping from the surface. However, due to molecular collisions, some molecules have sufficien
These are found in about 3-6 per cent of cases of ARF. These nodules are typically subcutaneous, firm, painless, freely movable (0.5-2 cm size) and their presence indicates that t
What is the role of heart in human body? The heart is the main pump that circulates the blood and fluid within the body. The heart, beats at 72 times per minute, and pumps abou
CHROMOLIPID Formed by lipid & pigment, eg. carotene, xanthophylls. Lycopene present in tomato & red chilli. Carrot is rich in b-carotene, converted into vitamin A.
Why is water conservation in c3 c4 and cam plants important? Cam stands for Crassulacean acid metabolism. C3 and C4 conserve less water than Cam plants. Actually, C4 plan
Define the Utilization of Most Probable Number Techniques? The MPN technique (multiple tube technique) can be used to determine the presumptive coliform count in the food. The
The Cori cycle a) Pyruvate formed from glucose is converted to lactate by lactate dehydrogenase in the muscle cell. b) Lactate is released into the blood and taken up b
Question 1: (a) In what ways does poverty lead to environmental degradation? (b) What types of problems do the rural and urban poor share? Give some differences in the condi
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