Estimation of synthetic food colours in foods, Chemistry

Assignment Help:

Q. Estimation of synthetic food colours in foods?

Food colours in various products need to be isolated, identified and then quantitatively measured for their limits. Estimation techniques for water soluble and oil soluble colours vary. One can use the wool dyeing method for isolation of acidic colours and can also use chromatographic techniques for their identification and measurement.

To identify them, we must study the colour reactions of these water soluble, acidic dyes which are characteristic to each colour and thus can be used as conformatory tests. The reactions of various colours with different chemical medium are given in Table.

187_Estimation of synthetic food colours in foods.png


Related Discussions:- Estimation of synthetic food colours in foods

Determine about the antiferromagnetic materials, Determine about the Antife...

Determine about the Antiferromagnetic materials Antiferromagnetic materials are materials in which almost all magnetic dipoles are linked up antiparallel to each other. Its sus

Hardness, 1. A sample of water contains: suspended matter = 100 mg; Ca(NO3)...

1. A sample of water contains: suspended matter = 100 mg; Ca(NO3)2 = 16.4 mg/L; MgSO4 = 24 mg/L; MgCl2 = 19 mg/L; NaOH = 40 mg/L and KOH = 56 mg/L. Calculate temporary, permanent a

Flame test, During a flame test why is calcium''s flame not persistent, whi...

During a flame test why is calcium''s flame not persistent, while that of strontium is? Ans) Because it does not have many ions as compared to the Strontium. It is the ions whic

Molarity and normality, When 100 ml of M/10 H2SO4 is mixed with 500 ml of M...

When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is

Applications of photochemistry, I am not finding the best material for the ...

I am not finding the best material for the assignment regarding the topic I need your help for this

Show the rate of decrease in atomic radius, Q. Show the rate of decrease in...

Q. Show the rate of decrease in atomic radius? The rate of decrease in atomic radius along the lanthanide series and also along the actinide series is even less than that in th

When alpha particles are sent through a thin metal foil, When α -particles ...

When α -particles are sent through a thin metal foil, most of them go straight through the foil because (one or more are correct) : (1) Alpha particles are much heavier than ele

TLC, Mesh size of silica gel for prep tlc

Mesh size of silica gel for prep tlc

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