Oxidation-reduction potential, Biology

Assignment Help:

How the Oxidation-reduction potential influence the spoilage of meat?

You learnt earlier that the presence or absence of oxygen and the 0-R potential of the food itself has a bearing on the type of organism which grows on a particular food. In the case of meat, after slaughter, he oxygen stored in the muscle gets reduced bringing down the oxidation reduction potential, while at the same time, it is higher at the surface of the meat. This condition is favorable to aerobic bacteria, yeasts and moulds while the internal conditions still being anaerobic, favours the growth of anaerobic bacteria. Under he anaerobic conditions, both the anaerobes and facultative anaerobes cause putrefaction. Putrefaction, as you know already, refers to the decomposition of oods due to microbial action. This is generally due to the growth of Clostridium spp. within the tissue, with the release of decomposition products like mercaptans, hydrogen sulphides, ammonia etc. The organism which is predominant in the decomposition of protein under anaerobic conditions is the Clostridium perfringens, which incidentally is a food borne disease causing organism. Under he aerobic conditions, apart .from bacteria, yeasts and moulds also grow on meat. The growth of a particular microorganism depends on temperature, moisture and other conditions. The organisms principally responsible for the spoilage of meat are bacteria of the genera Pseudomonas, Bacillus and Micrococcus. The other common bacteria include Cornybacterium, Escherichia and Aerobactel.


Related Discussions:- Oxidation-reduction potential

Define root-end resection apicoectomy, Define Root-End Resection Apicoectom...

Define Root-End Resection Apicoectomy a. Examine the root surface before cutting for: cracks, anatomical variations, and quality of orthograde obturation. b. Cut the root en

Excretory system, types of excretory system of lower animals

types of excretory system of lower animals

Agro industrial-potassium, Potassium Potassium, the third most abundan...

Potassium Potassium, the third most abundant mineral in the body, is the major cation in intracellular fluid. Forages are excellent source of potassium, usually containing 1 t

Describe the basic working of cerebral hemisphere, Q. How is it structurall...

Q. How is it structurally explained that the motor activity of the left side of the body is controlled by the right cerebral hemisphere and the motor activity of the right side of

Explain the parental gametes and recombinant gametes, In genetic recombinat...

In genetic recombination by crossing over what is the difference between parental gametes and recombinant gametes? Parental gametes are those gametes that keep the original lin

What is the difference between xylem and phloem, What is the difference bet...

What is the difference between xylem and phloem? Both xylem and phloem are vascular tissues found in a plant. Xylem is a tubular structure, which is liable for water transport

Systemic diseases in animals, S y s te m i c Diseases Diseases o...

S y s te m i c Diseases Diseases of the gastrointestinal tract The diseases of gastrointestinal system are manifested by abnormality in prehension, mastication and s

Micro biology, explane the role of nitrogenase enzyme

explane the role of nitrogenase enzyme

Phases of cell cycle, The cell goes through many discrete phases before and...

The cell goes through many discrete phases before and after cell division. From this understanding, scientists then identified the four characteristic phases of the cell cycle:

List various liver function tests, Question 1 List various liver function ...

Question 1 List various liver function tests. Discuss the importance of each test. Add a note on standardization of various liver function tests Question 2 Discuss the follow

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