Disinfection sterilization
(sterilization)
Introduction
containers has been developed especially made of tin. Later, tin, rare and expensive. The can is made of steel coated with tin on both sides. Thus saving huge amount of tin available. At the same time the can is made of aluminum, which is lightweight, but the disadvantage is easily dented. Most of it is used to make cans containing drinks or fruit juice or milk, but the cans, aluminum cans, which were not widely made of tin-plated steel sheet. Apart from the container will be a key component in the preservation of agricultural produce and the type of food, it is very important. How to use high heat to kill microorganisms in food storage requirements. Due to the preservation of agricultural produce The heat will change the condition of the fresh food is cooked, ready to eat. Therefore, the addition of flavoring or converted into new food products. Currently known "Food" components may include meat, vegetables and spices. For savory or sweet foods, such as fruits packed in syrup or processed canned food or food in glass jars. Require heat To keep cooked food contained within. To destroy bacteria and microbes Jersey. The heat has to concern because if the heat is too high. May make foods packaged in cans / bottles, soft and unappetizing. If the heat is too low, there may be residual bacteria, which cause food waste. Born cans to swell and eventually burst. Food preservation by heat Means for sterilizing food contained in a sealed container. To prevent decay or spoilage caused by microbial or by the interaction of enzymes in food. Sterilized by heating with three levels of sterilization (Sterilization) Sterilization commercial level. (Commercially sterilization) and disinfection Pasteur. (Pasteurization) principles, to destroy microbes. The spores of the bacteria that cause food harmful to consumers and the spores that cause food spoilage. The amount of heat used in the food industry is in a class called. Disinfection commercial (commercial sterilization) because not destroy all bacteria that are used to sterilize medical. Food processing in commercial sterilization may also have heat-resistant spores of bacteria. (Thermophiles) exists but is not a problem because food is stored at room temperature or below 45 ° C, the spores of the bacterium resistant to heat, so it does not grow and multiply causing food spoilage in sterilized after packing technology. The Small and Medium can be achieved. Used mainly produced domestically, the cost is very high. For example, the production of fruit juice sterilization in the Chitralada practices first. Packing Food preparation such as cleaning, trimming, cooking can be packaged in containers such as cans, glass bottles generally wear a solid part. And liquid down to Imported air By a space above the food (headspace) in the range of 1/4 - 3/8 inch wide glass bottle, but if there should be a gap above the restaurant about 1/2 - 1 inch packing two. Filling the air as hot as the one of the air. Because hot air to float away and replaced by steam over food. When air is discharged The food in cans over there, but water vapor. The midpoint temperature can not fall below 65 degrees Celsius, three. Sealing is achieved by using a sealer can be rolled tin close to the opener. The seams of cans must be strong enough to withstand pressure during sterilization, sealing four. Sterilization temperature and time are important to sterilization to eliminate spores of harmful bacteria and cause spoilage in vacuum. Meanwhile, it is still maintaining the quality of the food as much as possible. Not to lose the heat. Temperature and the right time to sterilize food type may not be equal sterilization 5. Refrigerate. After the time in the heat. Canned food will be cooled rapidly. To prevent food being heated too long. Reducing the temperature will quickly destroy microbes that grow at high temperatures and resistant to heat because the temperature changes suddenly. This is achieved by using water or air as cans with temperatures 40-45 degrees Celsius for the water to islands canned dry to prevent rusting containers used for food products that are processed by the application of heat, there are many. kind Both containers coagulation such as cans, glass bottles and containers weakens as plastic bottles, cardboard boxes Marie Thor's power switch to glass bottles and containers weakness may be complicated for industrial enterprises and medium-sized enterprises during. cool You must control the pressure in the retort and the retort to fit different pots of sterilized with steam generally. Therefore, operators may opt for metal cans as packaging for the food to be sterilized with heat / performance advantages of this technique we used. We will have free food microorganisms. The materials used are clean, sterile another thread. And we also used this technique to save production costs because we use less restrictions on use are two types of cans , metal tins 1. tin. For foods that are light in color and low in protein, such as canned pineapple 2. Metal cans of lacquer There are two types of lacquers commuting acid (acid resistant lacquer) in favor of gold. Use fruit filling with color. And water-soluble paint, such as grapes, strawberries, berries if using tin cans. Tin fell out of favor to bleach the color of the fruit.
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