How natural colourants produced, Biology

Assignment Help:

Natural Colors Used In Foods

Natural colourants produced for use in an analogous way to the coal-tar dyes are crude extracts of pigments, which are basically unstable. The apparent stability of some food products owes more to the amount of pigment present than to the tinctorial power of the pigment itself.

For example, beetroot even after prolonged cooking retains an attractive deep red colour, but the extracted pigment is unstable. Anthocyanin preparations have found use in some products, but their colour variation with pH has restricted their use, mainly to acidic products. However, in nature, the flavonoids (Flavanoids are antioxidant molecules found in plant sources such as fruit, flowers, roots, stems, tea, wine, grains and vegetables. They are often responsible for the beautiful coloring  of plant structures) produce colours from white through yellow, red and blue to black at the pH of cell sap. The potential colouring power of flavonoids is, therefore, great

 


Related Discussions:- How natural colourants produced

Dietary management of children with diarrhoea, Q. Dietary Management of Chi...

Q. Dietary Management of Children with Diarrhoea? Diarrhoeas are more common in children and malnutrition often leads to the elicitation of this symptom as undernourished are m

Explain about salivary glands in humans, Q. What is the location of the sal...

Q. What is the location of the salivary glands in humans? There are six major salivary glands and they are located one in each parotid gland, two beneath the mandibles (submand

What are the consequences of failures during dna replication, One character...

One characteristic of the DNA molecule is its replication capability. What are the consequences of failures during DNA replication? Ideally a DNA molecule should replicate in a

What is the relationship between these cells and hiv, Q. What are CD4 lymph...

Q. What are CD4 lymphocytes? What is the relationship between these cells and HIV? How does HIV replicate? The CD4 lymphocytes are T helper lymphocytes that present in their pl

Parasternal position, Examination is begun by placing the transducer in l...

Examination is begun by placing the transducer in left parasternal region, usually in the third or fourth left intercostal space. From this position, a sector image of the heart

Test, which area of the basal nuclei is responsible for controlling appendi...

which area of the basal nuclei is responsible for controlling appendicular muscle tone?

Pluricellular organisms are formed by serial mitosis, Q. From the zygote, p...

Q. From the zygote, pluricellular organisms are formed by serial mitosis. Would this formation be possible if each cell made by mitosis had an identical life in relation to its ant

Intermediate filaments - cytoskeletal structures, INTERMEDI A T E FILAME...

INTERMEDI A T E FILAMENTS These are non-living structures. Made up of different types of protein eg. Keratin, synemin, desmin and vimentin. These are divided into four

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