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

Define order of reaction , The order of reaction is the number...

The order of reaction is the number of moles whose concentrations verify the rate of a reaction at a given temperature

How to calculate caco3 equivalent , Q.  Ca +2 = 20 ppm, Mg +2 = 25 p...

Q.  Ca +2 = 20 ppm, Mg +2 = 25 ppm, CO 2 = 30 ppm, HCO - 3 = 150, K + = 10 ppm. Calculate the lime (87% pure) and soda (91% pure) required softening 1 million litt

Thermogravimatic analysis, what is thermogavimatic analysis and their instu...

what is thermogavimatic analysis and their instumental

Covalent bond and ionic bond, why water molecule forms covalent bond even t...

why water molecule forms covalent bond even though it dissociates into ions

Compounds of group 16 elements, Q. Compounds of Group 16 Elements? We w...

Q. Compounds of Group 16 Elements? We will now discuss some compounds like the hydrides, halides and oxides of the Group 16 elements.  All elements of this group form simple

Period tabel, why are lanthanides and actinides called innertransition meta...

why are lanthanides and actinides called innertransition metals

Important synthetic rubbers: nitrite rubbers , Nitrite rubbers (Gr-A or Bun...

Nitrite rubbers (Gr-A or Buna-N or NBR): Nitrite rubber is prepared by the copolymerization of butadiene and acrylonitrile in emulsion systems. Properties: 1.

write a shortnote on electrorefining of copper? , Electro refining of Copp...

Electro refining of Copper • Electrolyte - Aqueous copper sulphate solution (acidified) • Cathode - Pure copper metal (thin rod) • Anode - Impure copper metal (thick block) • Disso

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