Define the term hot water blanching, Biology

Assignment Help:

Define the term Hot water blanching?

A appropriate water-blanching process in traditional processing is as follows:

  • The sliced material is placed on a square piece of clean cloth; the corners of the cloth are tied together;
  • A stick is put through the tied corners of the cloth;
  • The cloth is dipped into a pan containing boiling water and the stick rests across the top of the pan thus providing support for the cloth bag.

 

The average blanching time is 6 minutes. The begin of blanching has to be timed from the moment the water starts to boil again after the cloth bag has been dipped into the pan. when the material is being blanched the cloth bag should be increased and lowered in the water so that the material is heated evenly. While the blanching time is completed the cloth bag and its content should be dipped into cold water to avoid over-blanching. If products are over-blanched (boiled for too long) they will stick together on the drying trays and they are similarly to have a poor flavour.

Throughout hot water blanching, some soluble constituents- water-soluble flavours, vitamins (vitamin C) and sugars - are leached out. With potatoes this may be an benefit as inactivation of enzymes (catalase and peroxidase) makes the potatoes less prone to turning brown.

 


Related Discussions:- Define the term hot water blanching

How is sound vibration captured by the tympanum, Q. How is the sound vibrat...

Q. How is the sound vibration captured by the tympanum transmitted through the ossicular chain of the middle ear? The acoustic transmission from the middle to the external ear

Autoradiography, Autoradiography Autoradiography is a modification of t...

Autoradiography Autoradiography is a modification of the radioactive tracer technique. In this technique, the radioactivity is detected by a thin film of photographic emulsion

What are the habits of patients- implants, Habits of patients- Implants ...

Habits of patients- Implants Smoking has been shown to predispose to poor bone quality by reduced vascularity. Therefore it is prudent not to accept heavy smokers as implant pa

Lamarckism theory of organic evolution, THEORY OF ORGANIC EVOLUTION - ...

THEORY OF ORGANIC EVOLUTION - LAMARCKISM Theory of the inheritance of acquired characters or Lamarckism put forwarded by Jean Baptist de Lamarck (1809) in his book "

Show characteristics of protozoans, Q. What are the characteristics of prot...

Q. What are the characteristics of protozoans that make them resemble animals? Protozoans are unicellular beings with some related characteristics to animal cells. In compar

Biotechnology, How does bisulfite sequencing work ?

How does bisulfite sequencing work ?

Pollution, Phosphate detergent as cause of water pollution

Phosphate detergent as cause of water pollution

Herbage area or vegetation cover, Herbage area or vegetation cover Her...

Herbage area or vegetation cover Herbage area or vegetation cover is an important aspect of vegetation study in understanding the nature of a community particularly in evaluat

Microbiology of air, Ask question #i need the complete table having the nam...

Ask question #i need the complete table having the names of the diseases their causative agents and their control,caused by air-borne pathogens?

Discuss about dengue and aids, Why is it difficult to produce efficient vac...

Why is it difficult to produce efficient vaccines against a viral infection like dengue and AIDS? It is complex to make vaccines against dengue because there are four dissimila

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