What is contact plate method - food microbiology, Biology

Assignment Help:

What is Contact Plate Method?

Contact Plate (RODAC - Replicate Organism Direct Agar Contact) Method - Contact plates are special petri plates containing suitable agar media with a raised agar surface above the rim of the plate. For sampling, the plate is inverted and agar is pressed against the sampled surface.

The plate is rolled while applying the pressure and is then incubated after replacing the cover at appropriate temperature and for appropriate time according to the purpose. Margin figure shows the growth on the contact plate. The colonies on each plate are counted. When surfaces to be examined are cleaned with detergents, neutralizers (lecithin, Twin 80 etc.) have to be incorporated in the medium.


Related Discussions:- What is contact plate method - food microbiology

Explain the management of apical canal impediment, Explain the Management o...

Explain the Management of Apical Canal Impediment Well angulated radiograph Coronal pre-flaring Pulp champer flooded with sodium hypochlorite Coronal passive

The nutrient composition of the diet, The nutrient composition of the diet ...

The nutrient composition of the diet The nutrient composition of the diet will depend upon the type(s) and amount(s) of liquids the patient can consume.  The diet is low  in  i

What is the relevance of knowing about gi of foods, What is the relevance o...

What is the relevance of knowing about GI of foods? Let us see how this index is helpful in prescribing therapeutic diets. You would realize that the dietary GI provides an ind

Features of gateway vector, Could any of the following features be useful i...

Could any of the following features be useful in a gateway vector; (i) Origin of replication (ii) multiple cloning site (iii) blue/white selection (iv) M13 forward and rev

Define about the types of indicators, Define about the Types of indicators?...

Define about the Types of indicators? The various types of indicators used are: (i) Acid-base indicators (ii) Redox indicators (iii) Metal ion indicators (iv) Preci

What is single cross between two mountain rabbits, In mountain rabbits, the...

In mountain rabbits, the EL-1 gene is located on chromosome 3. Seven alleles of this gene have been identified in the population. With respect to EL-1, what is the maximum number o

What are the general functions of the connective tissues, Q. What are the g...

Q. What are the general functions of the connective tissues? The major functions of the connective tissues are: filling and supporting of spaces, cellular nutrition, energetic

The best choice of a physician to determine her condition, A 37-year old wo...

A 37-year old woman is admitted to the hospital after complaining of chest pains. She admits to having had severe headaches for several days prior to seeking medical help. She is a

Condom, what is condom???

what is condom???

Five kingdom classification, discuss the merits nd demerits of five kingdom...

discuss the merits nd demerits of five kingdom classification.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd