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 Direct Microscopic Counts (DMC)
The process includes making a smear of food sample on a microscope slide followed by staining with an appropriate dye and viewing and counting under the microscope. It is widely used for assessing the microbial quality of the milk and dairy products (Breed Count).
The method involves spreading 0.01 ml of the milk sample on 1 cm area of a slide. After drying and staining the slide, average number of bacteria per microscopic field is counted. The diameter and area of the microscopic field is calculated by micrometry. Number of bacteria per ml of the milk sample is calculated as:
Number of bacteria/ml = average number of bacteria per microscopic field x number of field x dilution factor.
Number of Microscopic fields = area over which milk is spread ÷ area of one microscopic field = 100 mm2 ÷ 0.02 mm2 = 5000 field
Dilution factor = 100 (0.01 ml of the sample is plated)
It is rapid and simple method by which cell morphology can be detected. Efficiency can be increased by using fluorescent dye. The method, however, gives the count of both viable and nonviable cells. Sometimes food particles may not be distinguishable from microorganisms. Some microorganisms may not take stain and not be counted. In spite of these drawbacks, it is used for quick assessment of microbial quality of foods. The discussion above focused on the methods we can use to assess the microbiological quality of food samples.
Explain the Bioavailability of Folate? Bioavailability of folate from naturally occurring food sources is variable and frequently incomplete, as mentioned earlier in the food
a) What are the advantages of human milk over cows' milk for feeding babies? b) Apart from the composition of the milk, what are the other advantages of breast- feeding?
what term is used to indicate its grooves?
Until the Krebs cycle, aerobic respiration can be explained without mentioning oxygen, the chemical element after which the reaction gets its name. Where in the process does this c
Carpentier: Edwards or similar annuloplasty ring is then sutured into place by interrupted sutures to support the repair and reduce the annulus to a measured amount. The ring m
Which of the following results from the elimination of the sliding clamp? A. DNA polymerase will no longer be processive and will fall off the double helix after synthesizing
Q. What are the functional differences between neurons and glial cells? Neurons and Glial cells are the cells that form the nervous system. Neurons are cells that have the func
Three ways in which food might become contaminated by harmful bacteria. Food may become contaminated:- (i) from the unwashed hands of a food-handler, (ii) by house- flies
MYCOPLASMOSIS Mycoplasma organisms are the smallest free living, lack of cell-wall and bounded by a triple layer of plasma membrane. The organisms are pleuomorphic in shape, viz.
Name the one autosomal dominant and autosomal recessive Mendel an disorder in Humans. a) How is the action of exonucluease dissimilar from that of end nuclease? b) India has
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd