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

Explain composition of amino acid, Explain amino acid composition In te...

Explain amino acid composition In terms of amino acid composition, high radiation doses such as those required for sterilization (e.g. 25-27Kgy), do not change the content of c

Define paediatric problems and nutritional management, Define Paediatric Pr...

Define Paediatric Problems and Nutritional Management? The process of accepting and digesting food in adequate amounts to meet nutrition needs is termed as feeding. Certain gro

Does an increase of h+ cause the hemaglobin, Does an increase of H+ cause t...

Does an increase of H+ cause the hemaglobin oxygen binding curve to shift to the left or right? Explain.

Nervous system - spinal nerves, SPINAL NERVES 31 Pairs. Mixed type. ...

SPINAL NERVES 31 Pairs. Mixed type. Total weight 150 gms. At the base of origin of spinal nerves gland of swammardon or calcarious ganglion is present. Composed of m

Rna editing, RNA  editing  is  the  name  given  to  several  reactions  wh...

RNA  editing  is  the  name  given  to  several  reactions  whereby  the  nucleotide series  on an mRNA  molecule  should  be modified  by mechanisms  other  than RNA  splicing.  T

Anther, parts and functions of the anther

parts and functions of the anther

Determine about the degenerative diseases, Determine about the degenerative...

Determine about the degenerative diseases Immune responses in brain can quickly spiral out of control and cause further harm. In degenerative diseases such as Parkinson's, Alz

Define needs for nutritional relief programme & intervention, Define needs ...

Define needs for Nutritional Relief Programme and Interventions? A general feeding programme is required during first stage when the affected population does not have sufficien

Classification of coal by rank, Coal can be classified into following categ...

Coal can be classified into following categories in the order of rank. Peat:  peat is a brown and fibrous mass. It is the first stage of coalification. It is not used as

Functions of albumin and myosin, Q. What are respectively some remarkable f...

Q. What are respectively some remarkable functions of albumin, myosin, CD 4 , keratin, immunoglobulin, reverse transcriptase, hemoglobin and insulin? Myosin is a protein that w

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