Scientists from the University of Portsmouth, UK, and the US Department of Energy’s National Renewable Energy Laboratory have engineered an enzyme that can digest some of the most common and polluting plastics. ，今天小编就来说说关于怎么测试塑料助剂分散性?下面更多详细答案一起来看看吧!
怎么测试塑料助剂分散性
Scientists from the University of Portsmouth, UK, and the US Department of Energy’s National Renewable Energy Laboratory have engineered an enzyme that can digest some of the most common and polluting plastics.
来自英国朴茨茅斯大学和美国能源部国家可再生能源实验室的科学家已经设计出一种酶，可以消化一些最常见和污染的塑料。
Since its rise in popularity in the 1950s, we have produced about 8.3 billion metric tons of plastic. Polyethene terephthalate (PET) is just one of many plastics and takes hundreds of years to degrade, meaning this enzyme could be the answer to a major environmental problem. The enzyme, known as PETase, was recently discovered to naturally digest PET. While testing and 3D modelling the enzyme, the team unintentionally engineered the PETase to break down the plastic at a much faster rate than it would naturally. “
自从20世纪50年代流行以来，我们已经生产了大约83亿公吨的塑料。聚对苯二甲酸乙二醇酯（PET）是众多塑料中的一种，需要数百年时间才能降解，这意味着这种酶可以解决一个重大的环境问题。这种被称为PETase的酶最近被发现可以自然消化PET。在测试和3D模型化酶的过程中，研究小组无意中制造了PETase，以比自然速度快得多的速度分解塑料。“
Serendipity often plays a significant role in fundamental scientific research, and our discovery here is no exception,” said Professor McGeehan, director of the Institute of Biological and Biomedical Sciences at Portsmouth, in a press release.
意外收获在基础科学研究中常常扮演着重要的角色，我们在此的发现也不例外。“朴茨茅斯生物和生物医学科学研究所所长麦吉汉教授在一份新闻稿中说。
Having set out to determine the structure of the enzyme, the team modified the amino acids in its active site, and this change resulted in improved PET degradation.
在确定了酶的结构之后，研究小组对其活性中心的氨基酸进行了修饰，这种变化导致了对PET的降解。
“Although the improvement is modest, this unanticipated discovery suggests that there is room to further improve these enzymes, moving us closer to a recycling solution for the ever-growing mountain of discarded plastics, “ McGeehan concludes. The team is now working to further reduce the time taken to break down plastic for use in industry.
麦吉汉总结道：“虽然进展不大，但这个意想不到的发现表明，我们还有进一步改进这些酶的空间，使我们更接近于解决堆积如山的废弃塑料的循环利用问题。”该小组目前正在努力进一步减少工业用的塑料分解所需的时间。
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