Abuse the plastic wrap Table delicacies are turned into poison

Abuse the plastic wrap Table delicacies are turned into poison
Abuse the plastic wrap Table delicacies are turned into poison
Cover the plastic wrap, can lock the delicious food. Nowadays, people's reliance on the plastic wrap is stronger and stronger, the vegetables, fruit, leftovers leftovers, so long as cover it, there will be steady and sure a lot hearts. But recently, a research of U.S.A. points out, not all food are suitable for using the plastic wrap. It influences the moisture that the plastic wrap produces different vegetables and fruits differently the bigger fruit is suitable for using the plastic wrap compared with vegetables, such as apple, pear, tomato, rape, hotbed chives,etc., not only can keep fresh for a long time, will also increase some nutrient among them. The experiment shows, 100 grams of hotbed chives which is wrapped up in the upper plastic wrap, its content of vitamin C should be 1.33 more milligrams comparing with the time of wrapping up in 24 hours later, rape, lettuce leaf are 1.92 more milligrams. But the experimental results of some vegetables are far from each other, after 100 grams of turnips which is wrapped up in the upper plastic wrap are preserved for one day, the intersection of vitamin C and content its reduce 3.4, fresh kidney beans reduce 3.8, cucumber deposit after the one days and one nights, the loss amount of its vitamin C is equivalent to 5 apples. The prepared food is unsuitable to pack with plastic wrap and preserve prepared food, hot food, food containing oil, especially meat, you had better not pack with plastic wrap and preserve. The expert points out, after the food keeps in touch with the plastic wrap, it is very apt to make the chemical composition included in its material volatilize, dissolve in the food, it is disadvantageous to health. Most plastic wraps sold on the market at present are the same as commonly used plastic bag, all made as the raw materials of ethylene mother material. Some plastic wrap materials are polyethylene (abbreviate as PE) ,This kind of material does not include plasticizer, use relatively a little safer; Some materials are the polyvinyl chloride (abbreviate as PVC) ,This kind of material often adds stabilizer, lubricant, processes raw materials such as pharmaceuticals auxiliarily, there is certain danger on human body. So, must be cautious on the choice. Nowadays choose the appropriate fresh-keeping packaging, there are a lot of food packing products on the market, for example plastic wrap, freshness protection package, freshness box,etc.. It is to protect water, guarantee the quality and protect nutrition to keep fresh, in this respect, the efficiency of the plastic wrap is the best. The qualified plastic wrap is ventilative and strong, internal and external oxygen can be exchanged, prevent the reproduction of the anaerobe effectively, for a fixed period of time, can guarantee the food is fresh. "But to the food such as the pastry of steamed bun, it is obviously very inconvenient to use the plastic wrap, compare to look, the freshness protection package is thicker, it is not very good to be ventilative, relatively suitable for some, but try not to seal the mouth and die while using. The function of the box is mainly sealing, can isolate and store the raw delicatessen effectively to keep fresh, make the refrigerator space utilization ratio strengthen. (select from Canada " stars life newspaper ")


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