Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain the process of Freezing
Freezing, as a method, is the easiest, most convenient and least time-consuming way of preserving foods. Freezing does not sterilize foods or destroy the organisms that cause spoilage. How then does it preserve foods? Well, the extreme cold simply slows the growth of microorganisms and the chemical changes that affect quality or cause spoilage. You already know that all microbial and biochemical activities are temperature dependant and slow down as the temperature is reduced. As a rule of thumb, for every 10°C temperature change, the rate of reaction changes by a factor of 2 to 3. Further, freezing helps to preserve food by its action on enzymes. Enzymes, as you already know are complex proteins, present in all living tissue, that help organisms ripen and mature. During freezing, enzyme action is slowed but not stopped. If not inactivated, these enzymes can cause color and flavor changes and loss of nutrients during freezer storage. We are all familiar with chilling and refrigerated storage. At home or at the industry level, refrigerated storage of food is generally practiced. In the unit operation of chilling, the temperature of a food is reduced generally to between -1°C and 7 °C and thus subsequent storage at refrigerated temperature extends the shelf life of both the fresh and processed foods. It is also used as an adjunct process to extend the storage life of mildly processed (e.g. pasteurized, fermented and irradiated) and low-acid foods. In the United States, refrigerated storage of food is mandated by regulations at temperatures at or below 7.2°C. Such foods are also marketed under refrigeration and labeled as 'needing refrigeration'. Commercially sterilized and processed foods that may become contaminated after opening should also be labeled for refrigerated storage. Chilling and refrigerated storage prevents the growth of bacteria, particularly the thermophiles (organisms that grow at high temperature) and mesophiles (organisms that grow at medium temperature). Psychrophiles (organisms that grow at low temperatures), however, can and do cause food spoilage during low temperatures storage, but there are some psychrophillic pathogens.
Purpose To develop beginning skills in planning care for clients using the nursing process. General Instructions 1. This assignment should be presented type written, 8
Explain the Factors Controlling Movements of Gall Bladder Contraction of gall bladder can be controlled by reflex action, by the presence of foodstuff in the duodenum and by th
Introduction : Here you have need to about the fire hazards, various causes of fires and the precautions to be taken to avoid them. You also learnt about various types of fire ext
What is the reason for colours of actinide
Soil Texture and Methods of Analysis Soil texture is the basic property of a soil related to the size of individual mineral particles, which cannot be easily altered. It spe
Moving water by reducing air pressure Secure two small bottles. Fill single about half full of water and close it with a single-hole stopper carrying a length of glass tube tha
A soil with a large buffering capacity can be expected to have: A. A tremendous amount of iron oxides B. Little ability to retain basic cations C. A high ability to retain cation
Explain Organs of the Respiratory System The respiratory system consists of various organs. They form a clear pathway for the air to enter and leave the lungs. The body needs a
Describe the factors which decide the broad area of scientific activity?
Explain Steroids Steroids form a group of compounds which are often found in association with fats but structurally and functionally these are somewhat unrelated to most
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd