Foreign fruit fresh-keeping technology

First, edible fruit preservatives. The United States has developed an edible fruit preservative, which is a translucent liquid made from sugar, starch, fatty acids and polyesters. It can be used as a method of spraying, dipping and brushing to form a film covering apples and pears. The surface of fruits such as citrus, bananas or tomatoes. Because this preservative can form a nearly sealed film on the surface of the fruit, it can help prevent most of the oxygen from entering the interior of the fruit, inhibiting the ripening process of the fruit, and has the effect of prolonging the storage and preservation period. Fresh-keeping storage period can reach 160 to 220 days. This preservative can also be eaten together with the fruit and it can be used for fresh and cut fruit.
Second, plastic moisture-permeable plastic wrap. Japan produces a moisture permeable fresh-keeping plastic film for the preservation of fresh fruits. This plastic wrap is composed of two translucent films with excellent water permeability. A high-osmotic syrup is pressed between the two layers. Fruits packaged in this kind of film can not only keep fresh, but also balance the water and keep the freshness better.
Third, anion preservation method. In Japan, negative ion preservation machines are widely used to generate a large amount of negative oxygen ions and ozone by using a high voltage negative electrostatic field. Negative oxygen ions can inhibit the activity of enzymes in the process of fruit metabolism and reduce the production of ethylene with ripening effect inside the fruit. At the same time, ozone can also disinfect and sterilize and inhibit and prolong the decomposition of organic matter to delay the ripening period of fruit. Using this method to preserve fruit, it is still fresh after 75 days. The preservation rate is more than 99%. Its biggest feature is that it is much cheaper than traditional preservation with inert gas (such as nitrogen).
Fourth, low pressure preservation storage method. This method uses a vacuum pump to remove most of the air in the storeroom warehouse, and the pressure is controlled under 100 mm Hg (preferably in the range of 10-20 mm Hg) in a low-pressure environment, using a humidifier to adjust the relative humidity At 90%, due to this low-pressure environment, the catalytic process of fruits is maintained at a minimum level, which is conducive to the long-term preservation of fruits. The loss of 200 days of storage is only 3% to 5%, which is the current international and domestic mass storage and The method used when transporting fruit.

Goji Berry ( [Goji" means [happy") , also called wolfberry, has been used for thousands of years by herbalists in China to protect the liver, help eyesight, boost immune function, improve circulation, and promote longevity and overall well being. It has only recently gained popularity in the west, it has become so polar, in fact, the Time Magazine recently named the Goji berry as [super-fruit" of the year. A big reason why Goji berries have quickly become a favorite nutritional supplement is that its impressive list of ingredients. The Goji berry, also called the wolfberry, is a bright purplish red or purple red berry that comes from a shrub that is native to China. In Asia, goji berries have been eaten for generation in the hope of living longer.    


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