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

Significant figures of the number of digits, Q. Significant figures of the ...

Q. Significant figures of the number of digits? Significant figures of the number of digits reported in a measurement signify how precise the measurement is. The further di

Calculations, how to calculate alcoholic acidity as a H2SO4

how to calculate alcoholic acidity as a H2SO4

Explain about bohr atomic model, Q. Explain about Bohr atomic model? Bo...

Q. Explain about Bohr atomic model? Bohr anticipated that hydrogen's single electron could orbit at only specific distances from the atom's nucleus. When the electron is in the

Homework problem, If you were to combine 120.0 mL of 0.100 M HCL with 3.25 ...

If you were to combine 120.0 mL of 0.100 M HCL with 3.25 grams of calcium metal, how many grams of hydrogen gas would you make?

What is an emulsifier, Q. What is an Emulsifier? An emulsifier is a co...

Q. What is an Emulsifier? An emulsifier is a compound that contains both polar and nonpolar groups and thus is drawn to the interface between the two phases of an emulsion to

Decomposed at a lower temperature, Why li 2 CO 3 decomposed at a lower tem...

Why li 2 CO 3 decomposed at a lower temperature whereas Na2CO3 at higher temp?

Blow moulding and thermoforming extensively, write on blow moulding and the...

write on blow moulding and thermoforming extensively. 3 pages

Independent and dependent variables, what is the difference between both in...

what is the difference between both independent and dependent variables?

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