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

What is metachronal wave. describe., What is Metachronal wave? Describe. ...

What is Metachronal wave? Describe. During the coordination of the ciliary movement, bands, or groups of cilia, are at different stages of their beating pattern, and this creat

Define effect on oestrogens and progesterone in pregnancy, Define effect on...

Define effect on Oestrogens and progesterone in pregnancy? Oestrogens and progesterone are secreted by the placenta from 8-10 weeks of gestation. Progesterone increases through

Amoebae- parasitic protozoan, Amoebae- Parasitic Protozoan The amoebae...

Amoebae- Parasitic Protozoan The amoebae of the genus Entamoeba vary in their biology. Entamoeba histolytica or the dysentery amoeba occurs as a parasite in the large intestin

Planeria, differnce between protonephridia and metanephridia

differnce between protonephridia and metanephridia

Aeolian-transported soil, Aeolian Wind transported materials constitute...

Aeolian Wind transported materials constitute this category. This can be further divided into dunes or loess. Dunes are found in thr& types of situations. Fitly, these may occu

Glucagon and glucocorticoids, Important  aspects  related to regulation inc...

Important  aspects  related to regulation include: 1)  The hormones glucagon and glucocorticoids  which are  secreted  during  starvation stimulate  glucose-6-phosphatase to en

Taxonomy, Write two cytological approaches in taxonomy.

Write two cytological approaches in taxonomy.

Nutrition, mode of nutrition in follow animal lizard,bird,grasshopper,rat

mode of nutrition in follow animal lizard,bird,grasshopper,rat

Explain sedationin details, Explain Sedationin details? Intubation and ...

Explain Sedationin details? Intubation and mechanical ventilation is associated with a significant degree of discomfort. In addition, many of the procedures done routinely in I

Sexology, what is meant by double penetration sex?

what is meant by double penetration sex?

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