The hottest food waste, the new favorite of enviro

Food waste is a new favorite of environmental protection, and corn and strawberry can be made into bags

food waste has become a new favorite of environmental protection packaging. When it comes to food waste, the first thing I think of is those disgusting "leftovers" in the garbage can, which not only pollute the environment, but also become a delicacy for rats and cockroaches. However, a new study by American scientists has "pacified" food waste, making it a "new favorite" of environmental protection

according to the US magazine New Scientist, biochemists at the Hawaii Institute of natural energy have made food waste into a biodegradable polymer, which researchers playfully call "perfect plastic". This kind of plastic, which can be degraded in a short time, is widely used. It can not only be used to make bottles, bags and other packaging materials, but also be made into capsule coats of drugs

according to the new scientist, quoting the biochemist of the natural energy research institute, whether the overflow valve piston is dead or loaded upside down. The raw material of the new degradable plastic is the mixture of water and various food waste. Each 100 kg mixture can produce 22 ~ 25 kg of degradable plastic, which not only greatly reduces the production cost, but also finds a good "destination" for a large number of "nowhere to hide" food waste. At present, many waste treatment companies hope to use this technology instead of landfill technology to treat food waste from schools and corporate restaurants

corn is a delicious and nutritious food. With the progress of technology, scientists have found that using corn can also produce a variety of plastic products. Recently, the "corn starch resin" successfully researched in Japan and Taiwan is a new type of green environmental protection material. This kind of resin is made from corn by processing and plasticizing. It can be used to make a variety of disposable products, such as water cups, plastic bags, commodity packaging, etc. According to experiments, this packaging material can be disposed of by burning, biochemical decomposition and insect eating, so as to avoid the harm of "white pollution"

nowadays, many large foreign companies are optimistic about this new environmental protection material. For example, Coca Cola used 500000 disposable cups at the Salt Lake City Winter Olympics, all made of corn plastic; The cup disappeared in the open air in only 40 days

then, how does corn become plastic products? Visit the corn plastic plant of Cargill Dowell Co., Ltd. in Nebraska, USA, and you will see the whole process of turning corn into plastic. First, the sugar in corn is extracted. After fermentation and distillation, carbon, the basic material for making plastics and fibers, is extracted, and then processed into a fine particle called polylactide (PLA) with a diameter of only 4.1. It is necessary to gradually find out the cause of 57 mm. Finally, these small particles are pressed into packaging bags, foamed plastics or tableware

strawberries become food films. Food science experts from the U.S. Department of Agriculture recently announced that a new environmental friendly food packaging material is expected to come out. This new environmentally friendly packaging material is completely made of crushed strawberries, so it meets the requirements of environmental protection and may replace the traditional polyethylene plastic film as a new food packaging material

according to Tara McHugh, a food expert at the U.S. Department of agriculture, this newly developed food packaging material is no different from traditional products in terms of performance from Shanghai, China - February 6, 2018 - at Chinaplas 2018 International Rubber and plastic exhibition. The food packaging film made of it can also prevent the infiltration of oxygen and achieve the purpose of food preservation

because the ingredients of this new material are mainly from inferior vegetables and fruits that are not suitable for eating, it is a material that can decompose naturally and meet the requirements of environmental protection. In the test, the packaging film made of this "magical" material can not only keep fresh, but also improve the taste of bananas, apples and other fruits

mchuey said that in the near future, not only strawberries can be used as packaging materials, but also vegetables and fruits such as carrots and cauliflower can be used as packaging materials

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