Define food spoilage, Chemistry

Assignment Help:

Q. Define Food spoilage?

Food spoilage is a major concern of all people. Spoilage by growth of bacteria, yeasts and moulds limits the time that the food can be stored and still be safe and palatable. The environmental conditions optimal for reproduction vary with the type of these microorganisms. Foods can be preserved by altering these so that they no longer serve as a suitable host for microorganisms.

Foods also spoil when they undergo physical and chemical changes which may be due to the action of enzymatic and non-enzymatic reactions such as oxidation, mechanical damage etc. Therefore, the major causes of food spoilage and deterioration can be summarized as:

• Biological

- growth of bacteria, yeast, mould
- activity of enzymes
- insects, rodents and parasites

• Chemical

- reaction with oxygen
- chemical reactions within food constituents
- light

• Physical

- temperature
- physical stress or abuse

Microbial spoilage readily occurs in foods having sufficient moisture and a favourable temperature and other conditions of growth like pH, oxidation-reduction potential. Thus, to hinder the growth of the microorganisms these conditions must be taken care of and you would realize, this is the basis of food preservation.


Related Discussions:- Define food spoilage

#titleplease help.., Ask question #Minimum 100 words accepted Is there a se...

Ask question #Minimum 100 words accepted Is there a sequential move from one to another, amongst law, theory, and a hypothesis? Describe controlled conditions to find a scientific

In semiconductors why we use only pentavalent or trivalent?, Penta valent ...

Penta valent element has one electron more than 4 electrons which could be used for conduction while the trivalent elements has 1 electron less , this can also be seen as a hole

Determine the spectral lines correspond to paschen series, The emission spe...

The emission spectrum of hydrogen is found to satisfy the expression for the energy change. teiangle E  (in joules) such thatTriangle E= 2.18x10(1/n 2 1 - 1/ n 2 1 ) J  where n

Determine how much stock formic acid required, Formic acid is a weak acid a...

Formic acid is a weak acid along with a pKa of 3.75. The name comes by the Latin term "formica" ("ant") since this is very plentiful into the secretions of several species of ants,

Rehydration tests for the dried sample, Q. Rehydration tests for the dried ...

Q. Rehydration tests for the dried sample? • gain knowledge about the sensory changes that take place during the dehydration of the samples, and • learn about the effectiv

Role of organic solvents in atomisation, Role of organic solvents in atomis...

Role of organic solvents in atomisation: The organic solvents of low molar mass like alcohols, ethers, and ketones enhance the absorption peaks by increasing rate of aspiratio

Inorganic chemistry, dipole moment of para.nitro aniline is 6.10 D.why

dipole moment of para.nitro aniline is 6.10 D.why

Principal functional group-polyfunctional organic compounds , Principal fun...

Principal functional group-Polyfunctional Organic Compounds If the organic compound includes two or more functional groups, one of the functional sets is chosen as the princ

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