Evaluate the moisture requirement, Biology

Assignment Help:

Evaluate the Moisture Requirement - The Concept of Water Activity

We already know that moisture is one of the important factors for the survival of living species. As such, it has a great influence on them, including microorganisms like bacteria. Water accounts for 80-90% of the total weight of cells. The water requirement of bacteria varies fiom species to species. Although water is required by bacteria, the growth largely depends upon the available water, which can be utilized for the growth of microorganisms. This is expressed as water. activity which is defined as the percent equilibrium relative humidity (%ERH) divided by 100. ERH is an expression of the amount of free water vapour present on a product, both at its surface and within its structure. Numerically, ERH of a food divided by 100 equals "Water Activity". This can be represented by the following equation:

water Activity (aw) = Equilibrium Relative Humidity/100


Related Discussions:- Evaluate the moisture requirement

Name the implant failures, Implant failures On the basis of the stage w...

Implant failures On the basis of the stage when problems occurs implant failures can be classified as : i) Before Abutment Connection. ii) During Abutment Connection.

Explain the function of the right ventricle, Q. What is the function of the...

Q. What is the function of the right ventricle? To where does the right ventricle pump the venous blood? The venous blood is carried as of the right ventricle to the lungs by t

Explain dietary assessment criteria for vitamin a, Explain Dietary Assessme...

Explain Dietary Assessment Criteria for Vitamin A? Several methods can be adopted for the dietary assessment of vitamin A such as food frequency, weekly or 3 day food weighmen

Use of alternate metabolic pathways, Use of Alternate Metabolic Pathways ...

Use of Alternate Metabolic Pathways Plants surviving under water-logged conditions offer the simplest example of such a response. The submerged parts of such plants use the an

Define the materials used in perforation repair, Define the Materials Used ...

Define the Materials Used in Perforation Repair 1- Barrier material: Restorable barrier. UN Restorable barrier   2- Function of barriers: provide m

Ilustrate about corvous caurinus, When we watch animals in the wild, most o...

When we watch animals in the wild, most often we see them foraging for food. The foraging behaviour of animals has been a focus of behavioural studies for many decades. Natura

Why do ribosomes move along mrna during translation, Why do ribosomes move ...

Why do ribosomes move along mRNA during translation? During translation the ribosome always exposes two mRNA codons to be translated by moving along the mRNA. When a peptide bo

Define observation or inference for barfoed test, Define observation or inf...

Define observation or inference for barfoed test? 1. Reddish brown precipitate is seen on the sides and bottom of the tube. The precipitate of the sides and bottom indicates th

Genetics, polymorphism and its causes

polymorphism and its causes

Cellular and molecular events of bone formation, Q. Summarize the cellular ...

Q. Summarize the cellular and molecular events of bone formation? The events involved in osseous wound healing at implants recapitulate the events of wound healing. Haemostasi

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