What do you mean by blanching, Chemistry

Assignment Help:

Q. What do you mean by Blanching?

The enzymes in the food system can be separated into four groups relating to the changes in flavour, colour, texture and nutritive value.

The inactivation of these enzymes is dependent upon both the time and temperature of heat treatment during the process of blanching. Peroxidase is the most heat stable enzyme in plants and thus is taken as the "universal indicator" for checking the adequacy of blanching for fruits and vegetables.

Blanching of vegetables prior to freezing and dehydration has some advantages, as well as, disadvantages. The advantages include stabilization of texture, colour, flavour and nutritional quality; removal of intercellular gases, reduction in microbial load and shrinkage of vegetable matter which can aid in the achievement of required fill weight. The disadvantages include loss of colour, flavour and nutritive value. However, the disadvantages can be taken care of by optimizing the time and temperature required for blanching.


Related Discussions:- What do you mean by blanching

What parts of molecular forces are expected the species, What parts of mole...

What parts of molecular forces are expected to exist between the species in any three of the following pairs constituting mixtures? (a) He and N2 (b) Cl2 and NO- 3 (c) NH

Substrate concentration , How does the substrate concentration affect the s...

How does the substrate concentration affect the speed of enzymatic reactions? Ans) Initially as substrate concentration enhances the speed of the reaction enhances, this happens

Ideal chain model, Con?gurational entropy of square lattice models for poly...

Con?gurational entropy of square lattice models for polymers In this problem, we will consider, several models for a polymer on a 2D square lattice. In particular, we will focus on

Role of organic solvents in atomisation, Role of organic solvents in atomis...

Role of organic solvents in atomisation: The organic solvents of low molar mass like alcohols, ethers, and ketones enhance the absorption peaks by increasing rate of aspiratio

Numerical, 150ml of a gas at 27C is heated to 77C at constant pressure.find...

150ml of a gas at 27C is heated to 77C at constant pressure.find the new volume of the gas.

Show the reduction process on mixing acetone and chloroform, On mixing acet...

On mixing acetone and chloroform, a reduction in total volume occurs. What kind of deviations from ideal behavior for solutions is given in this case and why?

Explain heat of combustion, Explain heat of Combustion? Ans) The amount ...

Explain heat of Combustion? Ans) The amount of heat liberated when single mole of any substance is completely burnt in oxygen is known as heat of combustion H is negative for he

Coordination compond, octahedral splitting of electrons is expressed in ter...

octahedral splitting of electrons is expressed in terms of 10Dq.what would be the splitting for a d^3 high spin octahedral coordination compound?

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