Have more information on conservation methods in previous articles: Methods of food preservation (I

In this third installment of the appropriate methods of food preservation juicers australia series we will start talking about the methods themselves, after the previous two articles of introduction and basic principles. These methods can be divided into two groups: physical methods (which we will discuss here) and chemical methods, which leave for the next post.
Physical methods are a set of techniques that do nothing but create conditions that are not suitable for the development juicers australia of microorganisms causing alteration juicers australia of food. Within such methods we will distinguish two types: methods that inhibit the growth of microorganisms: Refrigerated storage of perishable Freeze Drying methods that destroy microorganisms: Heat treatments (canned) treatment with ionizing radiation Below we briefly juicers australia describe each one: REFRIGERATED STORAGE OF GOODS SHELF
This method relies on the fact that low temperatures retard many chemical and enzymatic reactions and physiological phenomena, such as respiration and ripening in fruit and vegetables. juicers australia
Refrigerated storage is often combined with other methods or techniques that will enhance, as is the use of modified atmospheres, which are only sealed juicers australia environments that has changed the composition of air, oxygen and replaced by removing carbon dioxide and other gases inert. FREEZING
Freezing is to subdue and keep food at temperatures that make all the free water is in solid food. For this the temperatures of -30 C are used to carry out freezing, and -24 C to maintain the frozen food and stored.
This drying can be done naturally (the Sun), which is one of the oldest methods, which are still used today in cereals. Said drying can also be artificial, using dryers, in this case talk about dehydration. CANNING O APPERTIZACIÓN
This method allows for indefinite storage of the food, since heat destroys microorganisms not only responsible juicers australia for alterations, but also prevents the oxidation reactions of food to eliminate the oxygen through juicers australia a vacuum packaging. Use of ionizing radiation
Using this technique the normal processes of the cells is modified in the feed is accomplished and inhibit the growth of bacteria, including Salmonella and Listeria. In addition, juicers australia outbreaks is delayed in foods like potatoes or onions, rotting meat and slows the rapid ripening of fruits and vegetables are prevented. For industry, irradiation is a safe and effective method that guarantees the preservation of food and prevents the transmission of disease through food.
Have more information on conservation methods in previous articles: Methods of food preservation (I): Introduction Methods of food preservation (II): Fundamentals _____________________________________________________________________
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