Since the British scientists invented the modified atmosphere storage method in 1918, the modified atmosphere has been widely promoted around the world and has become an important means of preservation of fresh fruits in industrial countries. Over 50% of total citrus storage in the United States and Israel is controlled atmosphere storage; New Zealand apple and kiwi fruit have more than 30% of total storage capacity; UK's atmospheric storage capacity is 223,000 tons; other countries such as France The climate-modulated apples in Italy, Italy, and the Netherlands all reached 50%-70% of the total storage volume.
CA atmosphere storage and fresh-keeping CA storage is air-conditioned storage preservation, the use of mechanical equipment, artificially controlled atmosphere of the air-conditioned cold storage of gas, to achieve fruit preservation. The air-conditioning library requires precise control of the concentration of gas components required for different fruits and strict control of temperature and humidity. The temperature may be the same as the storage temperature of the refrigerator, or slightly higher than the temperature of the refrigerator, to prevent cold damage. The combination of air-conditioning and low temperature results in a better preservation effect (color, hardness, etc.) than ordinary refrigerated storage, and the preservation period is significantly prolonged. The storage of fresh air-conditioned storage in China is in the development stage. Since China's first self-designed air-conditioning library was built in Beijing in 1978, Guangzhou, Dalian, Yantai and other places have successively introduced air-conditioning machines and complete sets of prefabricated air-conditioned storage pools to preserve apples, kiwifruit, and pears. Jujube and so on.
MA modified atmosphere storage and preservation of plastic film bags modified atmosphere, also known as MA spontaneous preservation of fresh air, widely used in fresh fruits and vegetables, such as preservation, and at an annual rate of 20% growth. Modified atmosphere packaging means that according to the nature of foods and the need for freshness preservation, different proportions of gas are filled into food packaging containers so that the foods are stored in a suitable gas to prolong their shelf life.
Commonly used gases are mainly carbon dioxide, oxygen, and sometimes also use sulfur dioxide and decaoxide. The role of carbon dioxide in the inhibition of the proliferation of aerobic bacteria and mold, prolong the stagnation period of the bacteria and delay its exponential growth period. The role of oxygen is to maintain the oxygen metabolism of fresh fruit. Aerobic respiration and anaerobic respiration after fruit picking can cause the fruit to age and decay. Reasonably controlling the concentration of oxygen in the environment allows the fruit to produce weak aerobic respiration without producing anaerobic respiration. Therefore, the ratio of oxygen to carbon dioxide in the modified atmosphere of fruit MA is a key factor. The fruit in the package consumes oxygen and emits carbon dioxide through respiration. The modified atmosphere packaging material can discharge carbon dioxide and replenish the consumed oxygen. That is, the permeation rate of the package is equal to the respiration rate of the fruit and the generation of anaerobic respiration is prevented. In addition, the fruit's respiration intensity is low at low temperature. To reduce the oxygen consumption of the fruit, MA modified atmosphere packaging is generally stored at a temperature of 0 to 5°C.
At present, there are two kinds of MA modified atmosphere packaging for fruits in the international market: one is passive atmosphere modified packaging, that is, fruit wrapped with plastic film, which reduces oxygen content through respiration and regulates the ratio of oxygen and carbon dioxide through membrane exchange gas; The other is active air-conditioning, that is, according to the breathing speed of different fruits into the mixed gas, and the use of different air permeability of the film, but due to the more complex technology and higher requirements on the variety and performance of packaging materials, not yet obtained in China widely used. In foreign countries, there are many leading materials in terms of packaging materials, such as moisture-proof cellophane, moisture-proof polypropylene, and shrinkage materials that prevent fruit from mechanical damage.
Plastic film accounting for air-conditioning storage preservation This method is to put the fruit in the sealed environment caused by the plastic film account to achieve air-conditioning preservation. The method of adjusting the atmosphere is divided into two categories. The first is the natural oxygen method. Through the respiration of fruits, the required low oxygen and high carbon dioxide gas concentrations are gradually formed in the account. Because the plastic film has certain air permeability, it is easy to adjust the gas. It is also possible to use a selectively breathable silicone rubber film to automatically adjust the atmosphere by opening a window of a certain area on the account. In order to prevent excessive accumulation of carbon dioxide, nitrate can be used to absorb carbon dioxide in the account. Another method is artificial oxygen reduction, which uses oxygen reducer and carbon dioxide remover to regulate gas. This method is mainly applied in the United States, France and the former Soviet Union. At present, China's Shanghai, Tianjin, Liaoning, Shandong, Shaanxi and Beijing have already begun to use.
The MAP preservation method MAP is a package that is first evacuated and then refilled with a mixed gas. Since it was first used by French sCOpA company in meat packaging in 1974, it has been widely used in snacks, seafood and dried products. The fruit preservation field has just started to use. The results of the study show that the fruits preserved by this method have very little change in vitamin C content during storage, and can protect the color of the fruit and prevent browning (a significant effect on the redness of litchi).
Threads are implanted into the sub-dermal skin and stimulate the production of collagen and the skin becomes firmer, elastic and moisturised. The thread dissolves itself in couple of months but the effect last for 12-18 months.
CA atmosphere storage and fresh-keeping CA storage is air-conditioned storage preservation, the use of mechanical equipment, artificially controlled atmosphere of the air-conditioned cold storage of gas, to achieve fruit preservation. The air-conditioning library requires precise control of the concentration of gas components required for different fruits and strict control of temperature and humidity. The temperature may be the same as the storage temperature of the refrigerator, or slightly higher than the temperature of the refrigerator, to prevent cold damage. The combination of air-conditioning and low temperature results in a better preservation effect (color, hardness, etc.) than ordinary refrigerated storage, and the preservation period is significantly prolonged. The storage of fresh air-conditioned storage in China is in the development stage. Since China's first self-designed air-conditioning library was built in Beijing in 1978, Guangzhou, Dalian, Yantai and other places have successively introduced air-conditioning machines and complete sets of prefabricated air-conditioned storage pools to preserve apples, kiwifruit, and pears. Jujube and so on.
MA modified atmosphere storage and preservation of plastic film bags modified atmosphere, also known as MA spontaneous preservation of fresh air, widely used in fresh fruits and vegetables, such as preservation, and at an annual rate of 20% growth. Modified atmosphere packaging means that according to the nature of foods and the need for freshness preservation, different proportions of gas are filled into food packaging containers so that the foods are stored in a suitable gas to prolong their shelf life.
Commonly used gases are mainly carbon dioxide, oxygen, and sometimes also use sulfur dioxide and decaoxide. The role of carbon dioxide in the inhibition of the proliferation of aerobic bacteria and mold, prolong the stagnation period of the bacteria and delay its exponential growth period. The role of oxygen is to maintain the oxygen metabolism of fresh fruit. Aerobic respiration and anaerobic respiration after fruit picking can cause the fruit to age and decay. Reasonably controlling the concentration of oxygen in the environment allows the fruit to produce weak aerobic respiration without producing anaerobic respiration. Therefore, the ratio of oxygen to carbon dioxide in the modified atmosphere of fruit MA is a key factor. The fruit in the package consumes oxygen and emits carbon dioxide through respiration. The modified atmosphere packaging material can discharge carbon dioxide and replenish the consumed oxygen. That is, the permeation rate of the package is equal to the respiration rate of the fruit and the generation of anaerobic respiration is prevented. In addition, the fruit's respiration intensity is low at low temperature. To reduce the oxygen consumption of the fruit, MA modified atmosphere packaging is generally stored at a temperature of 0 to 5°C.
At present, there are two kinds of MA modified atmosphere packaging for fruits in the international market: one is passive atmosphere modified packaging, that is, fruit wrapped with plastic film, which reduces oxygen content through respiration and regulates the ratio of oxygen and carbon dioxide through membrane exchange gas; The other is active air-conditioning, that is, according to the breathing speed of different fruits into the mixed gas, and the use of different air permeability of the film, but due to the more complex technology and higher requirements on the variety and performance of packaging materials, not yet obtained in China widely used. In foreign countries, there are many leading materials in terms of packaging materials, such as moisture-proof cellophane, moisture-proof polypropylene, and shrinkage materials that prevent fruit from mechanical damage.
Plastic film accounting for air-conditioning storage preservation This method is to put the fruit in the sealed environment caused by the plastic film account to achieve air-conditioning preservation. The method of adjusting the atmosphere is divided into two categories. The first is the natural oxygen method. Through the respiration of fruits, the required low oxygen and high carbon dioxide gas concentrations are gradually formed in the account. Because the plastic film has certain air permeability, it is easy to adjust the gas. It is also possible to use a selectively breathable silicone rubber film to automatically adjust the atmosphere by opening a window of a certain area on the account. In order to prevent excessive accumulation of carbon dioxide, nitrate can be used to absorb carbon dioxide in the account. Another method is artificial oxygen reduction, which uses oxygen reducer and carbon dioxide remover to regulate gas. This method is mainly applied in the United States, France and the former Soviet Union. At present, China's Shanghai, Tianjin, Liaoning, Shandong, Shaanxi and Beijing have already begun to use.
The MAP preservation method MAP is a package that is first evacuated and then refilled with a mixed gas. Since it was first used by French sCOpA company in meat packaging in 1974, it has been widely used in snacks, seafood and dried products. The fruit preservation field has just started to use. The results of the study show that the fruits preserved by this method have very little change in vitamin C content during storage, and can protect the color of the fruit and prevent browning (a significant effect on the redness of litchi).
Thread Lift including Korean Thread Face Lift,Gold Thread Face Lift,Thread Lift Face.
MAGIK Lift Series are made of PDO ( Polydioxanone ), it is a thread with no cones, thus no damage to the tissue. We call it Face Lifting Thread /Face Lift Threading. This is the same thread used in Cardiac and other surgeries as sutures, and thus it is very safe.
Aging causes the skin tissue to be thin because the collagen and elastin fiber is break down, which results in sagging skin, deep creases, folds and wrinkles. Magik thread reverses the effects of aging.Threads are implanted into the sub-dermal skin and stimulate the production of collagen and the skin becomes firmer, elastic and moisturised. The thread dissolves itself in couple of months but the effect last for 12-18 months.
Thread Lift
Plastic Surgery Thread Lift,Pdo Thread Lift,Pdo Cog Lifting Thread,Pdo Thread Lift Korea,Korean Thread Face Lift,Gold Thread Face Lift,Face Lift Threading
Dermax Technology Limited , http://www.dermaxmed.com