Functions of colour in foods, Biology

Assignment Help:

Q. Functions of Colour in Foods?

Let us now look at the different functions of colour in details, which are enumerated herewith:

1. The maturity of many fruits and vegetables is closely associated with colour development or changes in colour. Colour is also indicative of the freshness of the product. Changes in colour take place on storage that may lead to reduced or increased consumer acceptance e.g. in tomatoes- green- yellow- red. So colour acts as a ripening index in fruits and vegetables.

2. Composition Aspects- Colour indicates the composition of the food. For example, in egg yolk, the intensity of yellow colour tells us about the pigment content.

3. Grades are assigned to the food products on the basis of their colour. For example, tomatoes are graded according to their size and colour. Different prices are allocated for different grades. This is important for canning industry where they assign different grades to the canned tomatoes.

4. The end point determination during food processing is also done on the basis of the colour of the final product. For example, golden brown colour of the fried products.

5. Distinct colours are associated with different flavours e.g. pink colour to strawberry flavour, yellow to mango flavour and orange to orange flavour etc. 

6. It has been seen that the flavour scores of an inferior grade (poor quality) juice can be improved by colouring it to resemble the juice of better quality. So colour serves as a standard of good quality. Also, the flavour identification becomes difficult if the products are coloured deceptively. For example, green colour for an orange juice. Also people describe white wine as less sweet in taste in comparison to the red wine even though the sugar concentration has been kept constant. Example, orange juice which had a yellow colour has been found to be less acceptable in comparison to bright orange colour juice.

Well then, colour, as is evident from the discussion above plays a crucial role in food acceptability. It contributes immeasurably to ones aesthetic appreciation for food in addition to being associated with other attributes. A number of instruments are used for colour measurements. The next sub-section presents a review on these instruments.


Related Discussions:- Functions of colour in foods

Explain the function of muscular tissue, How can the presence, localization...

How can the presence, localization and function of muscular tissue in beings of the phylum Annelida be explained? In these beings there are a longitudinal muscular layer under

Aeration, Aeration A well-aerated soil is one in which gases are availa...

Aeration A well-aerated soil is one in which gases are available to plant roots and other soil organisms, in sufficient quantities and in proper proportions to support their no

Explain mitosis properly, Q. Does the mitosis properly occur after or befor...

Q. Does the mitosis properly occur after or before the interphase? Is it a simple "point of view" issue? Mitosis have to be considered a succeeding phase after interphase since

What are sensory receptors, What are sensory receptors? Sensory recepto...

What are sensory receptors? Sensory receptors are structures specialized in the acquiring of information, such as temperature, mechanical pressure, pH, chemical environment and

Seed formation, What are the 3 phases of seed formation

What are the 3 phases of seed formation

Traumatic reticuloperitonitis (trp), Tr aumatic reticuloperitonitis (TRP) ...

Tr aumatic reticuloperitonitis (TRP) It is also known as traumatic gastritis, hardware disease or traumatic reticulitis. Et i o l o g y : Frequentl

Diagnosis and treatment of rheumatic fever, Diagnosis  History and ...

Diagnosis  History and Physical examination.   John's criteria.   Echocardiogram show valvular insufficiency.   Chest X-ray cardiomegaly if CHF present.   EC

Define obligatory nitrogen losses, Define Obligatory Nitrogen losses? T...

Define Obligatory Nitrogen losses? The Committee estimated the total obligatory nitrogen losses through faeces, urine, skin and other miscellaneous routes in adult men as 2.0 m

Meaning of gestational diabetes mellitus, Q. Meaning of Gestational Diabete...

Q. Meaning of Gestational Diabetes Mellitus? In this type of diabetes, increased blood sugar level is first diagnosed or recognized during pregnancy. Women are not known as dia

Fracture and its various types, Fracture - It is a break of a bone. Bone f...

Fracture - It is a break of a bone. Bone fracture are of many types - (i) Green stick fracture - It is merely a crack, the bone remains partly intact. (ii )     Sim

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